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-
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-<!DOCTYPE html>
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- <title>Language Class &mdash; CodeIgniter 3.1.5 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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- <div class="section" id="language-class">
-<h1>Language Class<a class="headerlink" href="#language-class" title="Permalink to this headline">¶</a></h1>
-<p>The Language Class provides functions to retrieve language files and
-lines of text for purposes of internationalization.</p>
-<p>In your CodeIgniter <strong>system</strong> folder, you will find a <strong>language</strong> sub-directory
-containing a set of language files for the <strong>english</strong> idiom.
-The files in this directory (<strong>system/language/english/</strong>) define the regular messages,
-error messages, and other generally output terms or expressions, for the different parts
-of the CodeIgniter framework.</p>
-<p>You can create or incorporate your own language files, as needed, in order to provide
-application-specific error and other messages, or to provide translations of the core
-messages into other languages. These translations or additional messages would go inside
-your <strong>application/language/</strong> directory, with separate sub-directories for each idiom
-(for instance, &#8216;french&#8217; or &#8216;german&#8217;).</p>
-<p>The CodeIgniter framework comes with a set of language files for the &#8220;english&#8221; idiom.
-Additional approved translations for different idioms may be found in the
-<a class="reference external" href="https://github.com/bcit-ci/codeigniter3-translations">CodeIgniter 3 Translations repositories</a>.
-Each repository deals with a single idiom.</p>
-<p>When CodeIgniter loads language files, it will load the one in <strong>system/language/</strong>
-first and will then look for an override in your <strong>application/language/</strong> directory.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">Each language should be stored in its own folder. For example,
-the English files are located at: system/language/english</p>
-</div>
-<div class="contents local topic" id="contents">
-<ul class="simple">
-<li><a class="reference internal" href="#handling-multiple-languages" id="id1">Handling Multiple Languages</a><ul>
-<li><a class="reference internal" href="#sample-language-files" id="id2">Sample Language Files</a></li>
-<li><a class="reference internal" href="#example-of-switching-languages" id="id3">Example of switching languages</a></li>
-</ul>
-</li>
-<li><a class="reference internal" href="#internationalization" id="id4">Internationalization</a></li>
-<li><a class="reference internal" href="#using-the-language-class" id="id5">Using the Language Class</a><ul>
-<li><a class="reference internal" href="#creating-language-files" id="id6">Creating Language Files</a></li>
-<li><a class="reference internal" href="#loading-a-language-file" id="id7">Loading A Language File</a></li>
-<li><a class="reference internal" href="#fetching-a-line-of-text" id="id8">Fetching a Line of Text</a><ul>
-<li><a class="reference internal" href="#using-language-lines-as-form-labels" id="id9">Using language lines as form labels</a></li>
-</ul>
-</li>
-<li><a class="reference internal" href="#auto-loading-languages" id="id10">Auto-loading Languages</a></li>
-</ul>
-</li>
-<li><a class="reference internal" href="#class-reference" id="id11">Class Reference</a></li>
-</ul>
-</div>
-<div class="custom-index container"></div><div class="section" id="handling-multiple-languages">
-<h2><a class="toc-backref" href="#id1">Handling Multiple Languages</a><a class="headerlink" href="#handling-multiple-languages" title="Permalink to this headline">¶</a></h2>
-<p>If you want to support multiple languages in your application, you would provide folders inside
-your <strong>application/language/</strong> directory for each of them, and you would specify the default
-language in your <strong>application/config/config.php</strong>.</p>
-<p>The <strong>application/language/english/</strong> directory would contain any additional language files
-needed by your application, for instance for error messages.</p>
-<p>Each of the other idiom-specific directories would contain the core language files that you
-obtained from the translations repositories, or that you translated yourself, as well as
-any additional ones needed by your application.</p>
-<p>You would store the language you are currently using, for instance in a session variable.</p>
-<div class="section" id="sample-language-files">
-<h3><a class="toc-backref" href="#id2">Sample Language Files</a><a class="headerlink" href="#sample-language-files" title="Permalink to this headline">¶</a></h3>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nb">system</span><span class="o">/</span>
- <span class="nx">language</span><span class="o">/</span>
- <span class="nx">english</span><span class="o">/</span>
- <span class="o">...</span>
- <span class="nx">email_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="nx">form_validation_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="o">...</span>
-
-<span class="nx">application</span><span class="o">/</span>
- <span class="nx">language</span><span class="o">/</span>
- <span class="nx">english</span><span class="o">/</span>
- <span class="nx">error_messages_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="nx">french</span><span class="o">/</span>
- <span class="o">...</span>
- <span class="nx">email_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="nx">error_messages_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="nx">form_validation_lang</span><span class="o">.</span><span class="nx">php</span>
- <span class="o">...</span>
-</pre></div>
-</div>
-</div>
-<div class="section" id="example-of-switching-languages">
-<h3><a class="toc-backref" href="#id3">Example of switching languages</a><a class="headerlink" href="#example-of-switching-languages" title="Permalink to this headline">¶</a></h3>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$idiom</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">session</span><span class="o">-&gt;</span><span class="na">get_userdata</span><span class="p">(</span><span class="s1">&#39;language&#39;</span><span class="p">);</span>
-<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">load</span><span class="p">(</span><span class="s1">&#39;error_messages&#39;</span><span class="p">,</span> <span class="nv">$idiom</span><span class="p">);</span>
-<span class="nv">$oops</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">line</span><span class="p">(</span><span class="s1">&#39;message_key&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-</div>
-</div>
-<div class="section" id="internationalization">
-<h2><a class="toc-backref" href="#id4">Internationalization</a><a class="headerlink" href="#internationalization" title="Permalink to this headline">¶</a></h2>
-<p>The Language class in CodeIgniter is meant to provide an easy and lightweight
-way to support multiplelanguages in your application. It is not meant to be a
-full implementation of what is commonly called <a class="reference external" href="http://en.wikipedia.org/wiki/Internationalization_and_localization">internationalization and localization</a>.</p>
-<p>We use the term &#8220;idiom&#8221; to refer to a language using its common name,
-rather than using any of the international standards, such as &#8220;en&#8221;, &#8220;en-US&#8221;,
-or &#8220;en-CA-x-ca&#8221; for English and some of its variants.</p>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">There is nothing to prevent you from using those abbreviations in your application!</p>
-</div>
-</div>
-<div class="section" id="using-the-language-class">
-<h2><a class="toc-backref" href="#id5">Using the Language Class</a><a class="headerlink" href="#using-the-language-class" title="Permalink to this headline">¶</a></h2>
-<div class="section" id="creating-language-files">
-<h3><a class="toc-backref" href="#id6">Creating Language Files</a><a class="headerlink" href="#creating-language-files" title="Permalink to this headline">¶</a></h3>
-<p>Language files must be named with <strong>_lang.php</strong> as the filename extension.
-For example, let&#8217;s say you want to create a file containing error messages.
-You might name it: error_lang.php</p>
-<p>Within the file you will assign each line of text to an array called
-<tt class="docutils literal"><span class="pre">$lang</span></tt> with this prototype:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$lang</span><span class="p">[</span><span class="s1">&#39;language_key&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;The actual message to be shown&#39;</span><span class="p">;</span>
-</pre></div>
-</div>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">It&#8217;s a good practice to use a common prefix for all messages
-in a given file to avoid collisions with similarly named items in other
-files. For example, if you are creating error messages you might prefix
-them with error_</p>
-</div>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$lang</span><span class="p">[</span><span class="s1">&#39;error_email_missing&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;You must submit an email address&#39;</span><span class="p">;</span>
-<span class="nv">$lang</span><span class="p">[</span><span class="s1">&#39;error_url_missing&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;You must submit a URL&#39;</span><span class="p">;</span>
-<span class="nv">$lang</span><span class="p">[</span><span class="s1">&#39;error_username_missing&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;You must submit a username&#39;</span><span class="p">;</span>
-</pre></div>
-</div>
-</div>
-<div class="section" id="loading-a-language-file">
-<h3><a class="toc-backref" href="#id7">Loading A Language File</a><a class="headerlink" href="#loading-a-language-file" title="Permalink to this headline">¶</a></h3>
-<p>In order to fetch a line from a particular file you must load the file
-first. Loading a language file is done with the following code:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">load</span><span class="p">(</span><span class="s1">&#39;filename&#39;</span><span class="p">,</span> <span class="s1">&#39;language&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Where filename is the name of the file you wish to load (without the
-file extension), and language is the language set containing it (ie,
-english). If the second parameter is missing, the default language set
-in your <strong>application/config/config.php</strong> file will be used.</p>
-<p>You can also load multiple language files at the same time by passing an array of language files as first parameter.</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">load</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">&#39;filename1&#39;</span><span class="p">,</span> <span class="s1">&#39;filename2&#39;</span><span class="p">));</span>
-</pre></div>
-</div>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">The <em>language</em> parameter can only consist of letters.</p>
-</div>
-</div>
-<div class="section" id="fetching-a-line-of-text">
-<h3><a class="toc-backref" href="#id8">Fetching a Line of Text</a><a class="headerlink" href="#fetching-a-line-of-text" title="Permalink to this headline">¶</a></h3>
-<p>Once your desired language file is loaded you can access any line of
-text using this function:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">line</span><span class="p">(</span><span class="s1">&#39;language_key&#39;</span><span class="p">);</span>
-</pre></div>
-</div>
-<p>Where <em>language_key</em> is the array key corresponding to the line you wish
-to show.</p>
-<p>You can optionally pass FALSE as the second argument of that method to
-disable error logging, in case you&#8217;re not sure if the line exists:</p>
-<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">lang</span><span class="o">-&gt;</span><span class="na">line</span><span class="p">(</span><span class="s1">&#39;misc_key&#39;</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span>
-</pre></div>
-</div>
-<div class="admonition note">
-<p class="first admonition-title">Note</p>
-<p class="last">This method simply returns the line. It does not echo it.</p>
-</div>
-<div class="section" id="using-language-lines-as-form-labels">
-<h4><a class="toc-backref" href="#id9">Using language lines as form labels</a><a class="headerlink" href="#using-language-lines-as-form-labels" title="Permalink to this headline">¶</a></h4>
-<p>This feature has been deprecated from the language library and moved to
-the <a class="reference internal" href="../helpers/language_helper.html#lang" title="lang"><tt class="xref php php-func docutils literal"><span class="pre">lang()</span></tt></a> function of the <a class="reference internal" href="../helpers/language_helper.html"><em>Language Helper</em></a>.</p>
-</div>
-</div>
-<div class="section" id="auto-loading-languages">
-<h3><a class="toc-backref" href="#id10">Auto-loading Languages</a><a class="headerlink" href="#auto-loading-languages" title="Permalink to this headline">¶</a></h3>
-<p>If you find that you need a particular language globally throughout your
-application, you can tell CodeIgniter to <a class="reference internal" href="../general/autoloader.html"><em>auto-load</em></a> it during system initialization. This is done
-by opening the <strong>application/config/autoload.php</strong> file and adding the
-language(s) to the autoload array.</p>
-</div>
-</div>
-<div class="section" id="class-reference">
-<h2><a class="toc-backref" href="#id11">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
-<dl class="class">
-<dt id="CI_Lang">
-<em class="property">class </em><tt class="descname">CI_Lang</tt><a class="headerlink" href="#CI_Lang" title="Permalink to this definition">¶</a></dt>
-<dd><dl class="method">
-<dt id="CI_Lang::load">
-<tt class="descname">load</tt><big>(</big><em>$langfile</em><span class="optional">[</span>, <em>$idiom = ''</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">[</span>, <em>$add_suffix = TRUE</em><span class="optional">[</span>, <em>$alt_path = ''</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Lang::load" 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>$langfile</strong> (<em>mixed</em>) &#8211; Language file to load or array with multiple files</li>
-<li><strong>$idiom</strong> (<em>string</em>) &#8211; Language name (i.e. &#8216;english&#8217;)</li>
-<li><strong>$return</strong> (<em>bool</em>) &#8211; Whether to return the loaded array of translations</li>
-<li><strong>$add_suffix</strong> (<em>bool</em>) &#8211; Whether to add the &#8216;_lang&#8217; suffix to the language file name</li>
-<li><strong>$alt_path</strong> (<em>string</em>) &#8211; An alternative path to look in for the language file</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of language lines if $return is set to TRUE, otherwise void</p>
-</td>
-</tr>
-<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
-</td>
-</tr>
-</tbody>
-</table>
-<p>Loads a language file.</p>
-</dd></dl>
-
-<dl class="method">
-<dt id="CI_Lang::line">
-<tt class="descname">line</tt><big>(</big><em>$line</em><span class="optional">[</span>, <em>$log_errors = TRUE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Lang::line" title="Permalink to this definition">¶</a></dt>
-<dd><table class="docutils field-list" frame="void" rules="none">
-<col class="field-name" />
-<col class="field-body" />
-<tbody valign="top">
-<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
-<li><strong>$line</strong> (<em>string</em>) &#8211; Language line key name</li>
-<li><strong>$log_errors</strong> (<em>bool</em>) &#8211; Whether to log an error if the line isn&#8217;t found</li>
-</ul>
-</td>
-</tr>
-<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Language line string 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>Fetches a single translation line from the already loaded language files,
-based on the line&#8217;s name.</p>
-</dd></dl>
-
-</dd></dl>
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