1035 lines
67 KiB
HTML
1035 lines
67 KiB
HTML
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<!DOCTYPE html>
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<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Trackback Class — CodeIgniter 3.1.11 documentation</title>
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<link rel="shortcut icon" href="../_static/ci-icon.ico"/>
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<link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'>
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<link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" />
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<link rel="index" title="Index"
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href="../genindex.html"/>
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<link rel="search" title="Search" href="../search.html"/>
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<link rel="top" title="CodeIgniter 3.1.11 documentation" href="../index.html"/>
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<link rel="up" title="Libraries" href="index.html"/>
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<link rel="next" title="Typography Class" href="typography.html"/>
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<link rel="prev" title="HTML Table Class" href="table.html"/>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
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</head>
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<body class="wy-body-for-nav" role="document">
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<div id="nav">
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<div id="nav_inner">
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<div id="pulldown-menu" class="ciNav">
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
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</ul>
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</li>
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</ul>
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<ul class="current">
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
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<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
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<li class="toctree-l2 current"><a class="current reference internal" href="#">Trackback Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
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|||
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<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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</div>
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</div>
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</div>
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<div id="nav2">
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<a href="#" id="openToc">
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<img src="data:image/jpeg;base64,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" title="Toggle Table of Contents" alt="Toggle Table of Contents" />
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<div class="wy-side-nav-search">
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<a href="../index.html" class="fa fa-home"> CodeIgniter</a>
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<div role="search">
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<input type="text" name="q" placeholder="Search docs" />
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<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
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</ul>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/static_pages.html">Static pages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/news_section.html">News section</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
|
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</ul>
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</li>
|
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
|
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<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
|
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</ul>
|
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</li>
|
|||
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</ul>
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<ul>
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|||
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
|
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<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
|
|||
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
|
|||
|
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</ul>
|
|||
|
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</li>
|
|||
|
|
</ul>
|
|||
|
|
<ul class="current">
|
|||
|
|
<li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="input.html">Input Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
|
|||
|
|
<li class="toctree-l2 current"><a class="current reference internal" href="#">Trackback Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
|
|||
|
|
</ul>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<ul>
|
|||
|
|
<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
|
|||
|
|
</ul>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
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|
<ul>
|
|||
|
|
<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
|
|||
|
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
|
|||
|
|
<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<nav class="wy-nav-top" role="navigation" aria-label="top navigation">
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<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
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<a href="../index.html">CodeIgniter</a>
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</nav>
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<div role="navigation" aria-label="breadcrumbs navigation">
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<ul class="wy-breadcrumbs">
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<li><a href="../index.html">Docs</a> »</li>
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<li><a href="index.html">Libraries</a> »</li>
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<li>Trackback Class</li>
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<li class="wy-breadcrumbs-aside">
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</li>
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<div style="float:right;margin-left:5px;" id="closeMe">
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<img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
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</ul>
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<hr/>
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</div>
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<div role="main" class="document">
|
|||
|
|
|
|||
|
|
<div class="section" id="trackback-class">
|
|||
|
|
<h1>Trackback Class<a class="headerlink" href="#trackback-class" title="Permalink to this headline">¶</a></h1>
|
|||
|
|
<p>The Trackback Class provides functions that enable you to send and
|
|||
|
|
receive Trackback data.</p>
|
|||
|
|
<p>If you are not familiar with Trackbacks you’ll find more information
|
|||
|
|
<a class="reference external" href="http://en.wikipedia.org/wiki/Trackback">here</a>.</p>
|
|||
|
|
<div class="contents local topic" id="contents">
|
|||
|
|
<ul class="simple">
|
|||
|
|
<li><a class="reference internal" href="#using-the-trackback-class" id="id1">Using the Trackback Class</a><ul>
|
|||
|
|
<li><a class="reference internal" href="#initializing-the-class" id="id2">Initializing the Class</a></li>
|
|||
|
|
<li><a class="reference internal" href="#sending-trackbacks" id="id3">Sending Trackbacks</a></li>
|
|||
|
|
<li><a class="reference internal" href="#receiving-trackbacks" id="id4">Receiving Trackbacks</a></li>
|
|||
|
|
<li><a class="reference internal" href="#your-ping-url" id="id5">Your Ping URL</a></li>
|
|||
|
|
<li><a class="reference internal" href="#creating-a-trackback-table" id="id6">Creating a Trackback Table</a></li>
|
|||
|
|
<li><a class="reference internal" href="#processing-a-trackback" id="id7">Processing a Trackback</a><ul>
|
|||
|
|
<li><a class="reference internal" href="#notes" id="id8">Notes:</a></li>
|
|||
|
|
</ul>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
</li>
|
|||
|
|
<li><a class="reference internal" href="#class-reference" id="id9">Class Reference</a></li>
|
|||
|
|
</ul>
|
|||
|
|
</div>
|
|||
|
|
<div class="custom-index container"></div><div class="section" id="using-the-trackback-class">
|
|||
|
|
<h2><a class="toc-backref" href="#id1">Using the Trackback Class</a><a class="headerlink" href="#using-the-trackback-class" title="Permalink to this headline">¶</a></h2>
|
|||
|
|
<div class="section" id="initializing-the-class">
|
|||
|
|
<h3><a class="toc-backref" href="#id2">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>Like most other classes in CodeIgniter, the Trackback class is
|
|||
|
|
initialized in your controller using the <code class="docutils literal"><span class="pre">$this->load->library()</span></code> method:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'trackback'</span><span class="p">);</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>Once loaded, the Trackback library object will be available using:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="sending-trackbacks">
|
|||
|
|
<h3><a class="toc-backref" href="#id3">Sending Trackbacks</a><a class="headerlink" href="#sending-trackbacks" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>A Trackback can be sent from any of your controller functions using code
|
|||
|
|
similar to this example:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'trackback'</span><span class="p">);</span>
|
|||
|
|
|
|||
|
|
<span class="nv">$tb_data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|||
|
|
<span class="s1">'ping_url'</span> <span class="o">=></span> <span class="s1">'http://example.com/trackback/456'</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'url'</span> <span class="o">=></span> <span class="s1">'http://www.my-example.com/blog/entry/123'</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'title'</span> <span class="o">=></span> <span class="s1">'The Title of My Entry'</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'excerpt'</span> <span class="o">=></span> <span class="s1">'The entry content.'</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'blog_name'</span> <span class="o">=></span> <span class="s1">'My Blog Name'</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'charset'</span> <span class="o">=></span> <span class="s1">'utf-8'</span>
|
|||
|
|
<span class="p">);</span>
|
|||
|
|
|
|||
|
|
<span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">send</span><span class="p">(</span><span class="nv">$tb_data</span><span class="p">))</span>
|
|||
|
|
<span class="p">{</span>
|
|||
|
|
<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">display_errors</span><span class="p">();</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
<span class="k">else</span>
|
|||
|
|
<span class="p">{</span>
|
|||
|
|
<span class="k">echo</span> <span class="s1">'Trackback was sent!'</span><span class="p">;</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>Description of array data:</p>
|
|||
|
|
<ul class="simple">
|
|||
|
|
<li><strong>ping_url</strong> - The URL of the site you are sending the Trackback to.
|
|||
|
|
You can send Trackbacks to multiple URLs by separating each URL with a comma.</li>
|
|||
|
|
<li><strong>url</strong> - The URL to YOUR site where the weblog entry can be seen.</li>
|
|||
|
|
<li><strong>title</strong> - The title of your weblog entry.</li>
|
|||
|
|
<li><strong>excerpt</strong> - The content of your weblog entry.</li>
|
|||
|
|
<li><strong>blog_name</strong> - The name of your weblog.</li>
|
|||
|
|
<li><strong>charset</strong> - The character encoding your weblog is written in. If omitted, UTF-8 will be used.</li>
|
|||
|
|
</ul>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="first admonition-title">Note</p>
|
|||
|
|
<p class="last">The Trackback class will automatically send only the first 500 characters of your
|
|||
|
|
entry. It will also strip all HTML.</p>
|
|||
|
|
</div>
|
|||
|
|
<p>The Trackback sending method returns TRUE/FALSE (boolean) on success
|
|||
|
|
or failure. If it fails, you can retrieve the error message using:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">display_errors</span><span class="p">();</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="receiving-trackbacks">
|
|||
|
|
<h3><a class="toc-backref" href="#id4">Receiving Trackbacks</a><a class="headerlink" href="#receiving-trackbacks" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>Before you can receive Trackbacks you must create a weblog. If you don’t
|
|||
|
|
have a blog yet there’s no point in continuing.</p>
|
|||
|
|
<p>Receiving Trackbacks is a little more complex than sending them, only
|
|||
|
|
because you will need a database table in which to store them, and you
|
|||
|
|
will need to validate the incoming trackback data. You are encouraged to
|
|||
|
|
implement a thorough validation process to guard against spam and
|
|||
|
|
duplicate data. You may also want to limit the number of Trackbacks you
|
|||
|
|
allow from a particular IP within a given span of time to further
|
|||
|
|
curtail spam. The process of receiving a Trackback is quite simple; the
|
|||
|
|
validation is what takes most of the effort.</p>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="your-ping-url">
|
|||
|
|
<h3><a class="toc-backref" href="#id5">Your Ping URL</a><a class="headerlink" href="#your-ping-url" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>In order to accept Trackbacks you must display a Trackback URL next to
|
|||
|
|
each one of your weblog entries. This will be the URL that people will
|
|||
|
|
use to send you Trackbacks (we will refer to this as your “Ping URL”).</p>
|
|||
|
|
<p>Your Ping URL must point to a controller function where your Trackback
|
|||
|
|
receiving code is located, and the URL must contain the ID number for
|
|||
|
|
each particular entry, so that when the Trackback is received you’ll be
|
|||
|
|
able to associate it with a particular entry.</p>
|
|||
|
|
<p>For example, if your controller class is called Trackback, and the
|
|||
|
|
receiving function is called receive, your Ping URLs will look something
|
|||
|
|
like this:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">http</span><span class="o">://</span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">trackback</span><span class="o">/</span><span class="nx">receive</span><span class="o">/</span><span class="nx">entry_id</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>Where entry_id represents the individual ID number for each of your
|
|||
|
|
entries.</p>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="creating-a-trackback-table">
|
|||
|
|
<h3><a class="toc-backref" href="#id6">Creating a Trackback Table</a><a class="headerlink" href="#creating-a-trackback-table" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>Before you can receive Trackbacks you must create a table in which to
|
|||
|
|
store them. Here is a basic prototype for such a table:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">CREATE</span> <span class="nx">TABLE</span> <span class="nx">trackbacks</span> <span class="p">(</span>
|
|||
|
|
<span class="nx">tb_id</span> <span class="nx">int</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="nx">unsigned</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="nx">auto_increment</span><span class="p">,</span>
|
|||
|
|
<span class="nx">entry_id</span> <span class="nx">int</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="nx">unsigned</span> <span class="k">NOT</span> <span class="k">NULL</span> <span class="k">default</span> <span class="mi">0</span><span class="p">,</span>
|
|||
|
|
<span class="nx">url</span> <span class="nx">varchar</span><span class="p">(</span><span class="mi">200</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">title</span> <span class="nx">varchar</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">excerpt</span> <span class="nx">text</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">blog_name</span> <span class="nx">varchar</span><span class="p">(</span><span class="mi">100</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">tb_date</span> <span class="nx">int</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">ip_address</span> <span class="nx">varchar</span><span class="p">(</span><span class="mi">45</span><span class="p">)</span> <span class="k">NOT</span> <span class="k">NULL</span><span class="p">,</span>
|
|||
|
|
<span class="nx">PRIMARY</span> <span class="nx">KEY</span> <span class="sb">`tb_id`</span> <span class="p">(</span><span class="sb">`tb_id`</span><span class="p">),</span>
|
|||
|
|
<span class="nx">KEY</span> <span class="sb">`entry_id`</span> <span class="p">(</span><span class="sb">`entry_id`</span><span class="p">)</span>
|
|||
|
|
<span class="p">);</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>The Trackback specification only requires four pieces of information to
|
|||
|
|
be sent in a Trackback (url, title, excerpt, blog_name), but to make
|
|||
|
|
the data more useful we’ve added a few more fields in the above table
|
|||
|
|
schema (date, IP address, etc.).</p>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="processing-a-trackback">
|
|||
|
|
<h3><a class="toc-backref" href="#id7">Processing a Trackback</a><a class="headerlink" href="#processing-a-trackback" title="Permalink to this headline">¶</a></h3>
|
|||
|
|
<p>Here is an example showing how you will receive and process a Trackback.
|
|||
|
|
The following code is intended for use within the controller function
|
|||
|
|
where you expect to receive Trackbacks.:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'trackback'</span><span class="p">);</span>
|
|||
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">database</span><span class="p">();</span>
|
|||
|
|
|
|||
|
|
<span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">uri</span><span class="o">-></span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="o">==</span> <span class="k">FALSE</span><span class="p">)</span>
|
|||
|
|
<span class="p">{</span>
|
|||
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">send_error</span><span class="p">(</span><span class="s1">'Unable to determine the entry ID'</span><span class="p">);</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
|
|||
|
|
<span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">receive</span><span class="p">())</span>
|
|||
|
|
<span class="p">{</span>
|
|||
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">send_error</span><span class="p">(</span><span class="s1">'The Trackback did not contain valid data'</span><span class="p">);</span>
|
|||
|
|
<span class="p">}</span>
|
|||
|
|
|
|||
|
|
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|||
|
|
<span class="s1">'tb_id'</span> <span class="o">=></span> <span class="s1">''</span><span class="p">,</span>
|
|||
|
|
<span class="s1">'entry_id'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">uri</span><span class="o">-></span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">),</span>
|
|||
|
|
<span class="s1">'url'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">data</span><span class="p">(</span><span class="s1">'url'</span><span class="p">),</span>
|
|||
|
|
<span class="s1">'title'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">data</span><span class="p">(</span><span class="s1">'title'</span><span class="p">),</span>
|
|||
|
|
<span class="s1">'excerpt'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">data</span><span class="p">(</span><span class="s1">'excerpt'</span><span class="p">),</span>
|
|||
|
|
<span class="s1">'blog_name'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">data</span><span class="p">(</span><span class="s1">'blog_name'</span><span class="p">),</span>
|
|||
|
|
<span class="s1">'tb_date'</span> <span class="o">=></span> <span class="nb">time</span><span class="p">(),</span>
|
|||
|
|
<span class="s1">'ip_address'</span> <span class="o">=></span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">ip_address</span><span class="p">()</span>
|
|||
|
|
<span class="p">);</span>
|
|||
|
|
|
|||
|
|
<span class="nv">$sql</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">insert_string</span><span class="p">(</span><span class="s1">'trackbacks'</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
|
|||
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">query</span><span class="p">(</span><span class="nv">$sql</span><span class="p">);</span>
|
|||
|
|
|
|||
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">send_success</span><span class="p">();</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="notes">
|
|||
|
|
<h4><a class="toc-backref" href="#id8">Notes:</a><a class="headerlink" href="#notes" title="Permalink to this headline">¶</a></h4>
|
|||
|
|
<p>The entry ID number is expected in the third segment of your URL. This
|
|||
|
|
is based on the URI example we gave earlier:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">http</span><span class="o">://</span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">trackback</span><span class="o">/</span><span class="nx">receive</span><span class="o">/</span><span class="nx">entry_id</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>Notice the entry_id is in the third URI segment, which you can retrieve
|
|||
|
|
using:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">uri</span><span class="o">-></span><span class="na">segment</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>In our Trackback receiving code above, if the third segment is missing,
|
|||
|
|
we will issue an error. Without a valid entry ID, there’s no reason to
|
|||
|
|
continue.</p>
|
|||
|
|
<p>The $this->trackback->receive() function is simply a validation function
|
|||
|
|
that looks at the incoming data and makes sure it contains the four
|
|||
|
|
pieces of data that are required (url, title, excerpt, blog_name). It
|
|||
|
|
returns TRUE on success and FALSE on failure. If it fails you will issue
|
|||
|
|
an error message.</p>
|
|||
|
|
<p>The incoming Trackback data can be retrieved using this function:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">data</span><span class="p">(</span><span class="s1">'item'</span><span class="p">)</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<p>Where item represents one of these four pieces of info: url, title,
|
|||
|
|
excerpt, or blog_name</p>
|
|||
|
|
<p>If the Trackback data is successfully received, you will issue a success
|
|||
|
|
message using:</p>
|
|||
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">trackback</span><span class="o">-></span><span class="na">send_success</span><span class="p">();</span>
|
|||
|
|
</pre></div>
|
|||
|
|
</div>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="first admonition-title">Note</p>
|
|||
|
|
<p class="last">The above code contains no data validation, which you are
|
|||
|
|
encouraged to add.</p>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
<div class="section" id="class-reference">
|
|||
|
|
<h2><a class="toc-backref" href="#id9">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
|
|||
|
|
<dl class="class">
|
|||
|
|
<dt id="CI_Trackback">
|
|||
|
|
<em class="property">class </em><code class="descname">CI_Trackback</code><a class="headerlink" href="#CI_Trackback" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><dl class="attribute">
|
|||
|
|
<dt>
|
|||
|
|
<code class="descname">$data = array('url' => '', 'title' => '', 'excerpt' => '', 'blog_name' => '', 'charset' => '')</code></dt>
|
|||
|
|
<dd><p>Trackback data array.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="attribute">
|
|||
|
|
<dt>
|
|||
|
|
<code class="descname">$convert_ascii = TRUE</code></dt>
|
|||
|
|
<dd><p>Whether to convert high ASCII and MS Word characters to HTML entities.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::send">
|
|||
|
|
<code class="descname">send</code><span class="sig-paren">(</span><em>$tb_data</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::send" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$tb_data</strong> (<em>array</em>) – Trackback data</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Send trackback.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::receive">
|
|||
|
|
<code class="descname">receive</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::receive" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">TRUE on success, FALSE on failure</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>This method simply validates the incoming TB data, returning TRUE on success and FALSE on failure.
|
|||
|
|
If the data is valid it is set to the <code class="docutils literal"><span class="pre">$this->data</span></code> array so that it can be inserted into a database.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::send_error">
|
|||
|
|
<code class="descname">send_error</code><span class="sig-paren">(</span><span class="optional">[</span><em>$message = 'Incomplete information'</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::send_error" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$message</strong> (<em>string</em>) – Error message</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Responses to a trackback request with an error message.</p>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="first admonition-title">Note</p>
|
|||
|
|
<p class="last">This method will terminate script execution.</p>
|
|||
|
|
</div>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::send_success">
|
|||
|
|
<code class="descname">send_success</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::send_success" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">void</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Responses to a trackback request with a success message.</p>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="first admonition-title">Note</p>
|
|||
|
|
<p class="last">This method will terminate script execution.</p>
|
|||
|
|
</div>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::data">
|
|||
|
|
<code class="descname">data</code><span class="sig-paren">(</span><em>$item</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::data" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$item</strong> (<em>string</em>) – Data key</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Data value or empty string if not found</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Returns a single item from the response data array.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::process">
|
|||
|
|
<code class="descname">process</code><span class="sig-paren">(</span><em>$url</em>, <em>$data</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::process" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$url</strong> (<em>string</em>) – Target url</li>
|
|||
|
|
<li><strong>$data</strong> (<em>string</em>) – Raw POST data</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Opens a socket connection and passes the data to the server, returning TRUE on success and FALSE on failure.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::extract_urls">
|
|||
|
|
<code class="descname">extract_urls</code><span class="sig-paren">(</span><em>$urls</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::extract_urls" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$urls</strong> (<em>string</em>) – Comma-separated URL list</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of URLs</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>This method lets multiple trackbacks to be sent. It takes a string of URLs (separated by comma or space) and puts each URL into an array.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::validate_url">
|
|||
|
|
<code class="descname">validate_url</code><span class="sig-paren">(</span><em>&$url</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::validate_url" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$url</strong> (<em>string</em>) – Trackback URL</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Simply adds the <em>http://</em> prefix it it’s not already present in the URL.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::get_id">
|
|||
|
|
<code class="descname">get_id</code><span class="sig-paren">(</span><em>$url</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::get_id" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$url</strong> (<em>string</em>) – Trackback URL</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">URL ID or FALSE on failure</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Find and return a trackback URL’s ID or FALSE on failure.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::convert_xml">
|
|||
|
|
<code class="descname">convert_xml</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::convert_xml" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$str</strong> (<em>string</em>) – Input string</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Converted string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Converts reserved XML characters to entities.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::limit_characters">
|
|||
|
|
<code class="descname">limit_characters</code><span class="sig-paren">(</span><em>$str</em><span class="optional">[</span>, <em>$n = 500</em><span class="optional">[</span>, <em>$end_char = '&#8230;'</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::limit_characters" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$str</strong> (<em>string</em>) – Input string</li>
|
|||
|
|
<li><strong>$n</strong> (<em>int</em>) – Max characters number</li>
|
|||
|
|
<li><strong>$end_char</strong> (<em>string</em>) – Character to put at end of string</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Shortened string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Limits the string based on the character count. Will preserve complete words.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::convert_ascii">
|
|||
|
|
<code class="descname">convert_ascii</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::convert_ascii" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$str</strong> (<em>string</em>) – Input string</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Converted string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Converts high ASCII text and MS Word special characterss to HTML entities.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::set_error">
|
|||
|
|
<code class="descname">set_error</code><span class="sig-paren">(</span><em>$msg</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::set_error" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$msg</strong> (<em>string</em>) – Error message</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Set an log an error message.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
<dl class="method">
|
|||
|
|
<dt id="CI_Trackback::display_errors">
|
|||
|
|
<code class="descname">display_errors</code><span class="sig-paren">(</span><span class="optional">[</span><em>$open = '<p>'</em><span class="optional">[</span>, <em>$close = '</p>'</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Trackback::display_errors" title="Permalink to this definition">¶</a></dt>
|
|||
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|||
|
|
<col class="field-name" />
|
|||
|
|
<col class="field-body" />
|
|||
|
|
<tbody valign="top">
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|||
|
|
<li><strong>$open</strong> (<em>string</em>) – Open tag</li>
|
|||
|
|
<li><strong>$close</strong> (<em>string</em>) – Close tag</li>
|
|||
|
|
</ul>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">HTML formatted error messages</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|||
|
|
</td>
|
|||
|
|
</tr>
|
|||
|
|
</tbody>
|
|||
|
|
</table>
|
|||
|
|
<p>Returns error messages formatted in HTML or an empty string if there are no errors.</p>
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
</dd></dl>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
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|
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|
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|
|||
|
|
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|
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<footer>
|
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|
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|
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<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
|
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|
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<a href="typography.html" class="btn btn-neutral float-right" title="Typography Class">Next <span class="fa fa-arrow-circle-right"></span></a>
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<a href="table.html" class="btn btn-neutral" title="HTML Table Class"><span class="fa fa-arrow-circle-left"></span> Previous</a>
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|
|||
|
|
<hr/>
|
|||
|
|
|
|||
|
|
<div role="contentinfo">
|
|||
|
|
<p>
|
|||
|
|
© Copyright 2014 - 2019, British Columbia Institute of Technology.
|
|||
|
|
Last updated on Sep 19, 2019.
|
|||
|
|
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|
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|
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|
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|
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|
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|
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