137 lines
6.4 KiB
HTML
137 lines
6.4 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Language Class : CodeIgniter User Guide</title>
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<style type='text/css' media='all'>@import url('../userguide.css');</style>
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<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
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<meta name='author' content='ExpressionEngine Dev Team' />
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<meta name='description' content='CodeIgniter User Guide' />
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<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
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<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
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<div id="masthead">
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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<tr>
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<td><h1>CodeIgniter User Guide Version 2.1.3</h1></td>
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<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
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</tr>
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<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
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<tr>
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<td id="breadcrumb">
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<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
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<a href="../index.html">User Guide Home</a> ›
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Language Class
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</td>
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<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
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</tr>
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</table>
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<!-- START CONTENT -->
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<div id="content">
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<h1>Language Class</h1>
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<p>The Language Class provides functions to retrieve language files and lines of text for purposes of internationalization.</p>
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<p>In your CodeIgniter system folder you'll find one called <dfn>language</dfn> containing sets of language files. You can create
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your own language files as needed in order to display error and other messages in other languages.</p>
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<p>Language files are typically stored in your <dfn>system/language</dfn> directory. Alternately you can create a folder called <kbd>language</kbd> inside
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your <kbd>application</kbd> folder and store them there. CodeIgniter will look first in your <dfn>application/language</dfn>
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directory. If the directory does not exist or the specified language is not located there CI will instead look in your global
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<dfn>system/language</dfn> folder.</p>
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<p class="important"><strong>Note:</strong> Each language should be stored in its own folder. For example, the English files are located at:
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<dfn>system/language/english</dfn></p>
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<h2>Creating Language Files</h2>
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<p>Language files must be named with <kbd>_lang.php</kbd> as the file extension. For example, let's say you want to create a file
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containing error messages. You might name it: <kbd>error_lang.php</kbd></p>
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<p>Within the file you will assign each line of text to an array called <var>$lang</var> with this prototype:</p>
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<code>$lang['language_key'] = "The actual message to be shown";</code>
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<p><strong>Note:</strong> It's a good practice to use a common prefix for all messages in a given file to avoid collisions with
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similarly named items in other files. For example, if you are creating error messages you might prefix them with <var>error_</var></p>
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<code>$lang['<var>error</var>_email_missing'] = "You must submit an email address";<br />
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$lang['<var>error</var>_url_missing'] = "You must submit a URL";<br />
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$lang['<var>error</var>_username_missing'] = "You must submit a username";</code>
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<h2>Loading A Language File</h2>
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<p>In order to fetch a line from a particular file you must load the file first. Loading a language file is done with the following code:</p>
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<code>$this->lang->load('<samp>filename</samp>', '<dfn>language</dfn>');</code>
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<p>Where <samp>filename</samp> is the name of the file you wish to load (without the file extension), and <dfn>language</dfn>
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is the language set containing it (ie, english). If the second parameter is missing, the default language set in your
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<kbd>application/config/config.php</kbd> file will be used.</p>
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<h2>Fetching a Line of Text</h2>
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<p>Once your desired language file is loaded you can access any line of text using this function:</p>
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<code>$this->lang->line('<samp>language_key</samp>');</code>
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<p>Where <samp>language_key</samp> is the array key corresponding to the line you wish to show.</p>
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<p>Note: This function simply returns the line. It does not echo it for you.</p>
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<h3>Using language lines as form labels</h3>
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<p class="important">This feature has been deprecated from the language library and moved to the <kbd>lang()</kbd> function of the <a href="../helpers/language_helper.html">Language helper</a>.</p>
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<h2>Auto-loading Languages</h2>
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<p>If you find that you need a particular language globally throughout your application, you can tell CodeIgniter to <a href="../general/autoloader.html">auto-load</a> it during system initialization. This is done by opening the application/config/autoload.php file and adding the language(s) to the autoload array.</p>
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<p> </p>
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</div>
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<!-- END CONTENT -->
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<div id="footer">
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<p>
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Previous Topic: <a href="loader.html">Loader Class</a>
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·
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<a href="#top">Top of Page</a> ·
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<a href="../index.html">User Guide Home</a> ·
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Next Topic: <a href="output.html">Output Class</a>
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</p>
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<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2012 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
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