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Derek Allardd2df9bc2007-04-15 17:41:17 +0000[diff] [blame^]5<title>CodeIgniter User Guide</title>
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Derek Allardd2df9bc2007-04-15 17:41:17 +0000[diff] [blame^]36<td><h1>CodeIgniter User Guide Version 1.5.3</h1></td>
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50Language Class
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63
64<h1>Language Class</h1>
65
66<p>The Language Class provides functions to retrieve language files and lines of text for purposes of internationalization.</p>
67
Derek Allardd2df9bc2007-04-15 17:41:17 +0000[diff] [blame^]68<p>In your CodeIgniter system folder you'll find one called <dfn>language</dfn> containing sets of language files. You can create
adminb0dd10f2006-08-25 17:25:49 +0000[diff] [blame]69your own language files as needed in order to display error and other messages in other languages.</p>
70
adminfffef542006-09-20 23:39:28 +0000[diff] [blame]71<p>Language files are typically stored in your <dfn>system/language</dfn> directory. Alternately you can create a folder called <kbd>language</kbd> inside
Derek Allardd2df9bc2007-04-15 17:41:17 +0000[diff] [blame^]72your <kbd>application</kbd> folder and store them there. CodeIgniter will look first in your <dfn>system/application/language</dfn>
admine334c472006-10-21 19:44:22 +0000[diff] [blame]73directory. If the directory does not exist or the specified language is not located there CI will instead look in your global
adminfffef542006-09-20 23:39:28 +0000[diff] [blame]74<dfn>system/language</dfn> folder.</p>
75
76<p class="important"><strong>Note:</strong>&nbsp; Each language should be stored in its own folder. For example, the English files are located at:
77<dfn>system/language/english</dfn></p>
78
79
80
adminb0dd10f2006-08-25 17:25:49 +0000[diff] [blame]81<h2>Creating Language Files</h2>
82
83<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
84containing error messages. You might name it: <kbd>error_lang.php</kbd></p>
85
86<p>Within the file you will assign each line of text to an array called <var>$lang</var> with this prototype:</p>
87
88<code>$lang['language_key'] = "The actual message to be shown";</code>
89
admine334c472006-10-21 19:44:22 +0000[diff] [blame]90<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
adminfffef542006-09-20 23:39:28 +0000[diff] [blame]91similarly named items in other files. For example, if you are creating error messages you might prefix them with <var>error_</var></p>
adminb0dd10f2006-08-25 17:25:49 +0000[diff] [blame]92
93<code>$lang['<var>error</var>_email_missing'] = "You must submit an email address";<br />
94$lang['<var>error</var>_url_missing'] = "You must submit a URL";<br />
95$lang['<var>error</var>_username_missing'] = "You must submit a username";</code>
96
97
98<h2>Loading A Language File</h2>
99
100<p>In order to fetch a line from a particular file you must load the file first. Loading a language file is done with the following code:</p>
101
102<code>$this->lang->load('<samp>filename</samp>', '<dfn>language</dfn>');</code>
103
104<p>Where <samp>filename</samp> is the name of the file you wish to load (without the file extension), and <dfn>language</dfn>
105is the language set containing it (ie, english). If the second parameter is missing, the default language set in your
106<kbd>application/config/config.php</kbd> file will be used.</p>
107
108
109<h2>Fetching a Line of Text</h2>
110
111<p>Once your desired language file is loaded you can access any line of text using this function:</p>
112
113<code>$this->lang->line('<samp>language_key</samp>');</code>
114
115<p>Where <samp>language_key</samp> is the array key corresponding to the line you wish to show.</p>
116
117<p>Note: This function simply returns the line. It does not echo it for you.</p>
118
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