1151 lines
84 KiB
HTML
Executable File
1151 lines
84 KiB
HTML
Executable File
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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>XML-RPC and XML-RPC Server Classes — 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="Zip Encoding Class" href="zip.html"/>
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<link rel="prev" title="User Agent Class" href="user_agent.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="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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</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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<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>
|
||
<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>
|
||
<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>
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<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>
|
||
<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
|
||
<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"><a class="reference internal" href="trackback.html">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>
|
||
<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 current"><a class="current reference internal" href="#">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>
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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>
|
||
<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>
|
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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>
|
||
<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>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
|
||
<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
|
||
</ul>
|
||
</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="section" id="xml-rpc-and-xml-rpc-server-classes">
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<h1>XML-RPC and XML-RPC Server Classes<a class="headerlink" href="#xml-rpc-and-xml-rpc-server-classes" title="Permalink to this headline">¶</a></h1>
|
||
<p>CodeIgniter’s XML-RPC classes permit you to send requests to another
|
||
server, or set up your own XML-RPC server to receive requests.</p>
|
||
<div class="contents local topic" id="contents">
|
||
<ul class="simple">
|
||
<li><a class="reference internal" href="#what-is-xml-rpc" id="id3">What is XML-RPC?</a></li>
|
||
<li><a class="reference internal" href="#using-the-xml-rpc-class" id="id4">Using the XML-RPC Class</a><ul>
|
||
<li><a class="reference internal" href="#initializing-the-class" id="id5">Initializing the Class</a></li>
|
||
<li><a class="reference internal" href="#sending-xml-rpc-requests" id="id6">Sending XML-RPC Requests</a><ul>
|
||
<li><a class="reference internal" href="#explanation" id="id7">Explanation</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#anatomy-of-a-request" id="id8">Anatomy of a Request</a></li>
|
||
<li><a class="reference internal" href="#creating-an-xml-rpc-server" id="id9">Creating an XML-RPC Server</a></li>
|
||
<li><a class="reference internal" href="#processing-server-requests" id="id10">Processing Server Requests</a><ul>
|
||
<li><a class="reference internal" href="#notes" id="id11">Notes:</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#formatting-a-response" id="id12">Formatting a Response</a></li>
|
||
<li><a class="reference internal" href="#sending-an-error-response" id="id13">Sending an Error Response</a></li>
|
||
<li><a class="reference internal" href="#creating-your-own-client-and-server" id="id14">Creating Your Own Client and Server</a><ul>
|
||
<li><a class="reference internal" href="#the-client" id="id15">The Client</a></li>
|
||
<li><a class="reference internal" href="#the-server" id="id16">The Server</a></li>
|
||
<li><a class="reference internal" href="#try-it" id="id17">Try it!</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#using-associative-arrays-in-a-request-parameter" id="id18">Using Associative Arrays In a Request Parameter</a></li>
|
||
<li><a class="reference internal" href="#id2" id="id19">Data Types</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#class-reference" id="id20">Class Reference</a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="custom-index container"></div><div class="section" id="what-is-xml-rpc">
|
||
<h2><a class="toc-backref" href="#id3">What is XML-RPC?</a><a class="headerlink" href="#what-is-xml-rpc" title="Permalink to this headline">¶</a></h2>
|
||
<p>Quite simply it is a way for two computers to communicate over the
|
||
internet using XML. One computer, which we will call the client, sends
|
||
an XML-RPC <strong>request</strong> to another computer, which we will call the
|
||
server. Once the server receives and processes the request it will send
|
||
back a <strong>response</strong> to the client.</p>
|
||
<p>For example, using the MetaWeblog API, an XML-RPC Client (usually a
|
||
desktop publishing tool) will send a request to an XML-RPC Server
|
||
running on your site. This request might be a new weblog entry being
|
||
sent for publication, or it could be a request for an existing entry for
|
||
editing. When the XML-RPC Server receives this request it will examine
|
||
it to determine which class/method should be called to process the
|
||
request. Once processed, the server will then send back a response
|
||
message.</p>
|
||
<p>For detailed specifications, you can visit the <a class="reference external" href="http://www.xmlrpc.com/">XML-RPC</a> site.</p>
|
||
</div>
|
||
<div class="section" id="using-the-xml-rpc-class">
|
||
<h2><a class="toc-backref" href="#id4">Using the XML-RPC Class</a><a class="headerlink" href="#using-the-xml-rpc-class" title="Permalink to this headline">¶</a></h2>
|
||
<div class="section" id="initializing-the-class">
|
||
<h3><a class="toc-backref" href="#id5">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 XML-RPC and XML-RPCS classes
|
||
are initialized in your controller using the $this->load->library
|
||
function:</p>
|
||
<p>To load the XML-RPC class you will use:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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">'xmlrpc'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Once loaded, the xml-rpc library object will be available using:
|
||
$this->xmlrpc</p>
|
||
<p>To load the XML-RPC Server class you will use:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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">'xmlrpc'</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">library</span><span class="p">(</span><span class="s1">'xmlrpcs'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Once loaded, the xml-rpcs library object will be available using:
|
||
$this->xmlrpcs</p>
|
||
<div class="admonition note">
|
||
<p class="first admonition-title">Note</p>
|
||
<p class="last">When using the XML-RPC Server class you must load BOTH the
|
||
XML-RPC class and the XML-RPC Server class.</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="sending-xml-rpc-requests">
|
||
<h3><a class="toc-backref" href="#id6">Sending XML-RPC Requests</a><a class="headerlink" href="#sending-xml-rpc-requests" title="Permalink to this headline">¶</a></h3>
|
||
<p>To send a request to an XML-RPC server you must specify the following
|
||
information:</p>
|
||
<ul class="simple">
|
||
<li>The URL of the server</li>
|
||
<li>The method on the server you wish to call</li>
|
||
<li>The <em>request</em> data (explained below).</li>
|
||
</ul>
|
||
<p>Here is a basic example that sends a simple Weblogs.com ping to the
|
||
<a class="reference external" href="http://pingomatic.com/">Ping-o-Matic</a></p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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">'xmlrpc'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="s1">'http://rpc.pingomatic.com/'</span><span class="p">,</span> <span class="mi">80</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="s1">'weblogUpdates.ping'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'My Photoblog'</span><span class="p">,</span> <span class="s1">'http://www.my-site.com/photoblog/'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
|
||
<span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_request</span><span class="p">())</span>
|
||
<span class="p">{</span>
|
||
<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">display_error</span><span class="p">();</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="section" id="explanation">
|
||
<h4><a class="toc-backref" href="#id7">Explanation</a><a class="headerlink" href="#explanation" title="Permalink to this headline">¶</a></h4>
|
||
<p>The above code initializes the XML-RPC class, sets the server URL and
|
||
method to be called (weblogUpdates.ping). The request (in this case, the
|
||
title and URL of your site) is placed into an array for transportation,
|
||
and compiled using the request() function. Lastly, the full request is
|
||
sent. If the send_request() method returns false we will display the
|
||
error message sent back from the XML-RPC Server.</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="anatomy-of-a-request">
|
||
<h3><a class="toc-backref" href="#id8">Anatomy of a Request</a><a class="headerlink" href="#anatomy-of-a-request" title="Permalink to this headline">¶</a></h3>
|
||
<p>An XML-RPC request is simply the data you are sending to the XML-RPC
|
||
server. Each piece of data in a request is referred to as a request
|
||
parameter. The above example has two parameters: The URL and title of
|
||
your site. When the XML-RPC server receives your request, it will look
|
||
for parameters it requires.</p>
|
||
<p>Request parameters must be placed into an array for transportation, and
|
||
each parameter can be one of seven data types (strings, numbers, dates,
|
||
etc.). If your parameters are something other than strings you will have
|
||
to include the data type in the request array.</p>
|
||
<p>Here is an example of a simple array with three parameters:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'John'</span><span class="p">,</span> <span class="s1">'Doe'</span><span class="p">,</span> <span class="s1">'www.some-site.com'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>If you use data types other than strings, or if you have several
|
||
different data types, you will place each parameter into its own array,
|
||
with the data type in the second position:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
||
<span class="k">array</span><span class="p">(</span><span class="s1">'John'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="k">array</span><span class="p">(</span><span class="s1">'Doe'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="k">array</span><span class="p">(</span><span class="k">FALSE</span><span class="p">,</span> <span class="s1">'boolean'</span><span class="p">),</span>
|
||
<span class="k">array</span><span class="p">(</span><span class="mi">12345</span><span class="p">,</span> <span class="s1">'int'</span><span class="p">)</span>
|
||
<span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The <a class="reference external" href="#datatypes">Data Types</a> section below has a full list of data
|
||
types.</p>
|
||
</div>
|
||
<div class="section" id="creating-an-xml-rpc-server">
|
||
<h3><a class="toc-backref" href="#id9">Creating an XML-RPC Server</a><a class="headerlink" href="#creating-an-xml-rpc-server" title="Permalink to this headline">¶</a></h3>
|
||
<p>An XML-RPC Server acts as a traffic cop of sorts, waiting for incoming
|
||
requests and redirecting them to the appropriate functions for
|
||
processing.</p>
|
||
<p>To create your own XML-RPC server involves initializing the XML-RPC
|
||
Server class in your controller where you expect the incoming request to
|
||
appear, then setting up an array with mapping instructions so that
|
||
incoming requests can be sent to the appropriate class and method for
|
||
processing.</p>
|
||
<p>Here is an example to illustrate:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$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">'xmlrpc'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'xmlrpcs'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$config</span><span class="p">[</span><span class="s1">'functions'</span><span class="p">][</span><span class="s1">'new_post'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'function'</span> <span class="o">=></span> <span class="s1">'My_blog.new_entry'</span><span class="p">);</span>
|
||
<span class="nv">$config</span><span class="p">[</span><span class="s1">'functions'</span><span class="p">][</span><span class="s1">'update_post'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'function'</span> <span class="o">=></span> <span class="s1">'My_blog.update_entry'</span><span class="p">);</span>
|
||
<span class="nv">$config</span><span class="p">[</span><span class="s1">'object'</span><span class="p">]</span> <span class="o">=</span> <span class="nv">$this</span><span class="p">;</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpcs</span><span class="o">-></span><span class="na">initialize</span><span class="p">(</span><span class="nv">$config</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpcs</span><span class="o">-></span><span class="na">serve</span><span class="p">();</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The above example contains an array specifying two method requests that
|
||
the Server allows. The allowed methods are on the left side of the
|
||
array. When either of those are received, they will be mapped to the
|
||
class and method on the right.</p>
|
||
<p>The ‘object’ key is a special key that you pass an instantiated class
|
||
object with, which is necessary when the method you are mapping to is
|
||
not part of the CodeIgniter super object.</p>
|
||
<p>In other words, if an XML-RPC Client sends a request for the new_post
|
||
method, your server will load the My_blog class and call the new_entry
|
||
function. If the request is for the update_post method, your server
|
||
will load the My_blog class and call the <code class="docutils literal"><span class="pre">update_entry()</span></code> method.</p>
|
||
<p>The function names in the above example are arbitrary. You’ll decide
|
||
what they should be called on your server, or if you are using
|
||
standardized APIs, like the Blogger or MetaWeblog API, you’ll use their
|
||
function names.</p>
|
||
<p>There are two additional configuration keys you may make use of when
|
||
initializing the server class: debug can be set to TRUE in order to
|
||
enable debugging, and xss_clean may be set to FALSE to prevent sending
|
||
data through the Security library’s <code class="docutils literal"><span class="pre">xss_clean()</span></code> method.</p>
|
||
</div>
|
||
<div class="section" id="processing-server-requests">
|
||
<h3><a class="toc-backref" href="#id10">Processing Server Requests</a><a class="headerlink" href="#processing-server-requests" title="Permalink to this headline">¶</a></h3>
|
||
<p>When the XML-RPC Server receives a request and loads the class/method
|
||
for processing, it will pass an object to that method containing the
|
||
data sent by the client.</p>
|
||
<p>Using the above example, if the new_post method is requested, the
|
||
server will expect a class to exist with this prototype:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">My_blog</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">new_post</span><span class="p">(</span><span class="nv">$request</span><span class="p">)</span>
|
||
<span class="p">{</span>
|
||
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The $request variable is an object compiled by the Server, which
|
||
contains the data sent by the XML-RPC Client. Using this object you will
|
||
have access to the <em>request parameters</em> enabling you to process the
|
||
request. When you are done you will send a Response back to the Client.</p>
|
||
<p>Below is a real-world example, using the Blogger API. One of the methods
|
||
in the Blogger API is <code class="docutils literal"><span class="pre">getUserInfo()</span></code>. Using this method, an XML-RPC
|
||
Client can send the Server a username and password, in return the Server
|
||
sends back information about that particular user (nickname, user ID,
|
||
email address, etc.). Here is how the processing function might look:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">class</span> <span class="nc">My_blog</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">getUserInfo</span><span class="p">(</span><span class="nv">$request</span><span class="p">)</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$username</span> <span class="o">=</span> <span class="s1">'smitty'</span><span class="p">;</span>
|
||
<span class="nv">$password</span> <span class="o">=</span> <span class="s1">'secretsmittypass'</span><span class="p">;</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'xmlrpc'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$parameters</span> <span class="o">=</span> <span class="nv">$request</span><span class="o">-></span><span class="na">output_parameters</span><span class="p">();</span>
|
||
|
||
<span class="k">if</span> <span class="p">(</span><span class="nv">$parameters</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">!=</span> <span class="nv">$username</span> <span class="o">&&</span> <span class="nv">$parameters</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">!=</span> <span class="nv">$password</span><span class="p">)</span>
|
||
<span class="p">{</span>
|
||
<span class="k">return</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_error_message</span><span class="p">(</span><span class="s1">'100'</span><span class="p">,</span> <span class="s1">'Invalid Access'</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
|
||
<span class="nv">$response</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="s1">'nickname'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Smitty'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'userid'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'99'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'url'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'http://yoursite.com'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'email'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'jsmith@yoursite.com'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'lastname'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Smith'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'firstname'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'John'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">)</span>
|
||
<span class="p">),</span>
|
||
<span class="s1">'struct'</span>
|
||
<span class="p">);</span>
|
||
|
||
<span class="k">return</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_response</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="section" id="notes">
|
||
<h4><a class="toc-backref" href="#id11">Notes:</a><a class="headerlink" href="#notes" title="Permalink to this headline">¶</a></h4>
|
||
<p>The <code class="docutils literal"><span class="pre">output_parameters()</span></code> method retrieves an indexed array
|
||
corresponding to the request parameters sent by the client. In the above
|
||
example, the output parameters will be the username and password.</p>
|
||
<p>If the username and password sent by the client were not valid, and
|
||
error message is returned using <code class="docutils literal"><span class="pre">send_error_message()</span></code>.</p>
|
||
<p>If the operation was successful, the client will be sent back a response
|
||
array containing the user’s info.</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="formatting-a-response">
|
||
<h3><a class="toc-backref" href="#id12">Formatting a Response</a><a class="headerlink" href="#formatting-a-response" title="Permalink to this headline">¶</a></h3>
|
||
<p>Similar to <em>Requests</em>, <em>Responses</em> must be formatted as an array.
|
||
However, unlike requests, a response is an array <strong>that contains a
|
||
single item</strong>. This item can be an array with several additional arrays,
|
||
but there can be only one primary array index. In other words, the basic
|
||
prototype is this:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$response</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'Response data'</span><span class="p">,</span> <span class="s1">'array'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Responses, however, usually contain multiple pieces of information. In
|
||
order to accomplish this we must put the response into its own array so
|
||
that the primary array continues to contain a single piece of data.
|
||
Here’s an example showing how this might be accomplished:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$response</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="s1">'first_name'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'John'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'last_name'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'Doe'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span>
|
||
<span class="s1">'member_id'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="mi">123435</span><span class="p">,</span> <span class="s1">'int'</span><span class="p">),</span>
|
||
<span class="s1">'todo_list'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'clean house'</span><span class="p">,</span> <span class="s1">'call mom'</span><span class="p">,</span> <span class="s1">'water plants'</span><span class="p">),</span> <span class="s1">'array'</span><span class="p">),</span>
|
||
<span class="p">),</span>
|
||
<span class="s1">'struct'</span>
|
||
<span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Notice that the above array is formatted as a struct. This is the most
|
||
common data type for responses.</p>
|
||
<p>As with Requests, a response can be one of the seven data types listed
|
||
in the <a class="reference external" href="#datatypes">Data Types</a> section.</p>
|
||
</div>
|
||
<div class="section" id="sending-an-error-response">
|
||
<h3><a class="toc-backref" href="#id13">Sending an Error Response</a><a class="headerlink" href="#sending-an-error-response" title="Permalink to this headline">¶</a></h3>
|
||
<p>If you need to send the client an error response you will use the
|
||
following:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">return</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_error_message</span><span class="p">(</span><span class="s1">'123'</span><span class="p">,</span> <span class="s1">'Requested data not available'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>The first parameter is the error number while the second parameter is
|
||
the error message.</p>
|
||
</div>
|
||
<div class="section" id="creating-your-own-client-and-server">
|
||
<h3><a class="toc-backref" href="#id14">Creating Your Own Client and Server</a><a class="headerlink" href="#creating-your-own-client-and-server" title="Permalink to this headline">¶</a></h3>
|
||
<p>To help you understand everything we’ve covered thus far, let’s create a
|
||
couple controllers that act as XML-RPC Client and Server. You’ll use the
|
||
Client to send a request to the Server and receive a response.</p>
|
||
<div class="section" id="the-client">
|
||
<h4><a class="toc-backref" href="#id15">The Client</a><a class="headerlink" href="#the-client" title="Permalink to this headline">¶</a></h4>
|
||
<p>Using a text editor, create a controller called Xmlrpc_client.php. In
|
||
it, place this code and save it to your application/controllers/
|
||
folder:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">class</span> <span class="nc">Xmlrpc_client</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">index</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'url'</span><span class="p">);</span>
|
||
<span class="nv">$server_url</span> <span class="o">=</span> <span class="nx">site_url</span><span class="p">(</span><span class="s1">'xmlrpc_server'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'xmlrpc'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="nv">$server_url</span><span class="p">,</span> <span class="mi">80</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="s1">'Greetings'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'How is it going?'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
|
||
<span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_request</span><span class="p">())</span>
|
||
<span class="p">{</span>
|
||
<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">display_error</span><span class="p">();</span>
|
||
<span class="p">}</span>
|
||
<span class="k">else</span>
|
||
<span class="p">{</span>
|
||
<span class="k">echo</span> <span class="s1">'<pre>'</span><span class="p">;</span>
|
||
<span class="nb">print_r</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">display_response</span><span class="p">());</span>
|
||
<span class="k">echo</span> <span class="s1">'</pre>'</span><span class="p">;</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
<span class="cp">?></span>
|
||
</pre></div>
|
||
</div>
|
||
<div class="admonition note">
|
||
<p class="first admonition-title">Note</p>
|
||
<p class="last">In the above code we are using a “url helper”. You can find more
|
||
information in the <a class="reference internal" href="../general/helpers.html"><span class="doc">Helpers Functions</span></a> page.</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="the-server">
|
||
<h4><a class="toc-backref" href="#id16">The Server</a><a class="headerlink" href="#the-server" title="Permalink to this headline">¶</a></h4>
|
||
<p>Using a text editor, create a controller called Xmlrpc_server.php. In
|
||
it, place this code and save it to your application/controllers/
|
||
folder:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="o"><?</span><span class="nx">php</span>
|
||
|
||
<span class="k">class</span> <span class="nc">Xmlrpc_server</span> <span class="k">extends</span> <span class="nx">CI_Controller</span> <span class="p">{</span>
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">index</span><span class="p">()</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'xmlrpc'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'xmlrpcs'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$config</span><span class="p">[</span><span class="s1">'functions'</span><span class="p">][</span><span class="s1">'Greetings'</span><span class="p">]</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="s1">'function'</span> <span class="o">=></span> <span class="s1">'Xmlrpc_server.process'</span><span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpcs</span><span class="o">-></span><span class="na">initialize</span><span class="p">(</span><span class="nv">$config</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpcs</span><span class="o">-></span><span class="na">serve</span><span class="p">();</span>
|
||
<span class="p">}</span>
|
||
|
||
|
||
<span class="k">public</span> <span class="k">function</span> <span class="nf">process</span><span class="p">(</span><span class="nv">$request</span><span class="p">)</span>
|
||
<span class="p">{</span>
|
||
<span class="nv">$parameters</span> <span class="o">=</span> <span class="nv">$request</span><span class="o">-></span><span class="na">output_parameters</span><span class="p">();</span>
|
||
|
||
<span class="nv">$response</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="s1">'you_said'</span> <span class="o">=></span> <span class="nv">$parameters</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span>
|
||
<span class="s1">'i_respond'</span> <span class="o">=></span> <span class="s1">'Not bad at all.'</span>
|
||
<span class="p">),</span>
|
||
<span class="s1">'struct'</span>
|
||
<span class="p">);</span>
|
||
|
||
<span class="k">return</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_response</span><span class="p">(</span><span class="nv">$response</span><span class="p">);</span>
|
||
<span class="p">}</span>
|
||
<span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="try-it">
|
||
<h4><a class="toc-backref" href="#id17">Try it!</a><a class="headerlink" href="#try-it" title="Permalink to this headline">¶</a></h4>
|
||
<p>Now visit the your site using a URL similar to this:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">example</span><span class="o">.</span><span class="nx">com</span><span class="o">/</span><span class="nx">index</span><span class="o">.</span><span class="nx">php</span><span class="o">/</span><span class="nx">xmlrpc_client</span><span class="o">/</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You should now see the message you sent to the server, and its response
|
||
back to you.</p>
|
||
<p>The client you created sends a message (“How’s is going?”) to the
|
||
server, along with a request for the “Greetings” method. The Server
|
||
receives the request and maps it to the <code class="docutils literal"><span class="pre">process()</span></code> method, where a
|
||
response is sent back.</p>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="using-associative-arrays-in-a-request-parameter">
|
||
<h3><a class="toc-backref" href="#id18">Using Associative Arrays In a Request Parameter</a><a class="headerlink" href="#using-associative-arrays-in-a-request-parameter" title="Permalink to this headline">¶</a></h3>
|
||
<p>If you wish to use an associative array in your method parameters you
|
||
will need to use a struct datatype:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="c1">// Param 0</span>
|
||
<span class="k">array</span><span class="p">(</span><span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'John'</span><span class="p">),</span>
|
||
<span class="s1">'struct'</span>
|
||
<span class="p">),</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="c1">// Param 1</span>
|
||
<span class="k">array</span><span class="p">(</span>
|
||
<span class="s1">'size'</span> <span class="o">=></span> <span class="s1">'large'</span><span class="p">,</span>
|
||
<span class="s1">'shape'</span><span class="o">=></span><span class="s1">'round'</span>
|
||
<span class="p">),</span>
|
||
<span class="s1">'struct'</span>
|
||
<span class="p">)</span>
|
||
<span class="p">);</span>
|
||
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>You can retrieve the associative array when processing the request in
|
||
the Server.</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$parameters</span> <span class="o">=</span> <span class="nv">$request</span><span class="o">-></span><span class="na">output_parameters</span><span class="p">();</span>
|
||
<span class="nv">$name</span> <span class="o">=</span> <span class="nv">$parameters</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s1">'name'</span><span class="p">];</span>
|
||
<span class="nv">$size</span> <span class="o">=</span> <span class="nv">$parameters</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="s1">'size'</span><span class="p">];</span>
|
||
<span class="nv">$shape</span> <span class="o">=</span> <span class="nv">$parameters</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="s1">'shape'</span><span class="p">];</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="id2">
|
||
<h3><a class="toc-backref" href="#id19">Data Types</a><a class="headerlink" href="#id2" title="Permalink to this headline">¶</a></h3>
|
||
<p>According to the <a class="reference external" href="http://www.xmlrpc.com/spec">XML-RPC spec</a> there are
|
||
seven types of values that you can send via XML-RPC:</p>
|
||
<ul class="simple">
|
||
<li><em>int</em> or <em>i4</em></li>
|
||
<li><em>boolean</em></li>
|
||
<li><em>string</em></li>
|
||
<li><em>double</em></li>
|
||
<li><em>dateTime.iso8601</em></li>
|
||
<li><em>base64</em></li>
|
||
<li><em>struct</em> (contains array of values)</li>
|
||
<li><em>array</em> (contains array of values)</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
<div class="section" id="class-reference">
|
||
<h2><a class="toc-backref" href="#id20">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
|
||
<dl class="class">
|
||
<dt id="CI_Xmlrpc">
|
||
<em class="property">class </em><code class="descname">CI_Xmlrpc</code><a class="headerlink" href="#CI_Xmlrpc" title="Permalink to this definition">¶</a></dt>
|
||
<dd><dl class="method">
|
||
<dt id="CI_Xmlrpc::initialize">
|
||
<code class="descname">initialize</code><span class="sig-paren">(</span><span class="optional">[</span><em>$config = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::initialize" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
||
<li><strong>$config</strong> (<em>array</em>) – Configuration data</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>Initializes the XML-RPC library. Accepts an associative array containing your settings.</p>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::server">
|
||
<code class="descname">server</code><span class="sig-paren">(</span><em>$url</em><span class="optional">[</span>, <em>$port = 80</em><span class="optional">[</span>, <em>$proxy = FALSE</em><span class="optional">[</span>, <em>$proxy_port = 8080</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::server" 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>$url</strong> (<em>string</em>) – XML-RPC server URL</li>
|
||
<li><strong>$port</strong> (<em>int</em>) – Server port</li>
|
||
<li><strong>$proxy</strong> (<em>string</em>) – Optional proxy</li>
|
||
<li><strong>$proxy_port</strong> (<em>int</em>) – Proxy listening port</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>Sets the URL and port number of the server to which a request is to be sent:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="s1">'http://www.sometimes.com/pings.php'</span><span class="p">,</span> <span class="mi">80</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Basic HTTP authentication is also supported, simply add it to the server URL:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="s1">'http://user:pass@localhost/'</span><span class="p">,</span> <span class="mi">80</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::timeout">
|
||
<code class="descname">timeout</code><span class="sig-paren">(</span><em>$seconds = 5</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::timeout" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
||
<li><strong>$seconds</strong> (<em>int</em>) – Timeout in seconds</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 a time out period (in seconds) after which the request will be canceled:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">timeout</span><span class="p">(</span><span class="mi">6</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>This timeout period will be used both for an initial connection to
|
||
the remote server, as well as for getting a response from it.
|
||
Make sure you set the timeout before calling <code class="docutils literal"><span class="pre">send_request()</span></code>.</p>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::method">
|
||
<code class="descname">method</code><span class="sig-paren">(</span><em>$function</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::method" 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>$function</strong> (<em>string</em>) – Method name</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Sets the method that will be requested from the XML-RPC server:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="s1">'method'</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
<p>Where method is the name of the method.</p>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::request">
|
||
<code class="descname">request</code><span class="sig-paren">(</span><em>$incoming</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::request" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
||
<li><strong>$incoming</strong> (<em>array</em>) – Request data</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>Takes an array of data and builds request to be sent to XML-RPC server:</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$request</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'My Photoblog'</span><span class="p">,</span> <span class="s1">'string'</span><span class="p">),</span> <span class="s1">'http://www.yoursite.com/photoblog/'</span><span class="p">);</span>
|
||
<span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">request</span><span class="p">(</span><span class="nv">$request</span><span class="p">);</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::send_request">
|
||
<code class="descname">send_request</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::send_request" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">TRUE on success, FALSE on failure</td>
|
||
</tr>
|
||
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>The request sending method. Returns boolean TRUE or FALSE based on success for failure, enabling it to be used conditionally.</p>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::display_error">
|
||
<code class="descname">display_error</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::display_error" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Error message string</td>
|
||
</tr>
|
||
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Returns an error message as a string if your request failed for some reason.</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">display_error</span><span class="p">();</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::display_response">
|
||
<code class="descname">display_response</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::display_response" 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">Response</td>
|
||
</tr>
|
||
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">mixed</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Returns the response from the remote server once request is received. The response will typically be an associative array.</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">display_response</span><span class="p">();</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<dl class="method">
|
||
<dt id="CI_Xmlrpc::send_error_message">
|
||
<code class="descname">send_error_message</code><span class="sig-paren">(</span><em>$number</em>, <em>$message</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Xmlrpc::send_error_message" title="Permalink to this definition">¶</a></dt>
|
||
<dd><table class="docutils field-list" frame="void" rules="none">
|
||
<col class="field-name" />
|
||
<col class="field-body" />
|
||
<tbody valign="top">
|
||
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
||
<li><strong>$number</strong> (<em>int</em>) – Error number</li>
|
||
<li><strong>$message</strong> (<em>string</em>) – Error message</li>
|
||
</ul>
|
||
</td>
|
||
</tr>
|
||
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">XML_RPC_Response instance</p>
|
||
</td>
|
||
</tr>
|
||
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">XML_RPC_Response</p>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>This method lets you send an error message from your server to the client.
|
||
First parameter is the error number while the second parameter is the error message.</p>
|
||
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">return</span> <span class="nv">$this</span><span class="o">-></span><span class="na">xmlrpc</span><span class="o">-></span><span class="na">send_error_message</span><span class="p">(</span><span class="mi">123</span><span class="p">,</span> <span class="s1">'Requested data not available'</span><span class="p">);</span>
|
||
</pre></div>
|
||
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|
||
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|
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|
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