16.9. Localizing Included Files
Dynamically modify the include_path once you've determined the appropriate locale:
$base = '/usr/local/php-include'; $LANG = 'en_US'; $include_path = ini_get('include_path'); ini_set('include_path',"$base/$LANG:$base/global:$include_path");
The $base variable holds the name of the base directory for your included localized files. Files that are not locale-specific go in the global subdirectory of $base, and locale-specific files go in a subdirectory named after their locale (e.g., en_US). Prepending the locale-specific directory and then the global directory to the include path makes them the first two places PHP looks when you include a file. Putting the locale-specific directory first ensures that nonlocalized information is loaded only if localized information isn't available.
This technique is similar to what the img( ) function does in the Section 16.8. Here, however, you can take advantage of PHP's include_path feature to have the directory searching happen automatically. For maximum utility, reset include_path as early as possible in your code, preferably at the top of a file loaded via auto_prepend_file on every request.
16.9.4. See Also
Documentation on include_path at http://www.php.net/manual/en/configuration.directives.php#ini.include-path and auto_prepend_file at http://www.php.net/manual/en/configuration.directives.php#ini.auto-prepend-file.
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