Lookup a message in the current domain (PHP 3 >= 3.0.7, PHP 4, PHP 5)
string gettext ( string message )

This function returns a translated string if one is found in the translation table, or the submitted message if not found. You may use the underscore character '_' as an alias to this function.

例 659. gettext()-check

// Set language to German
setlocale(LC_ALL, 'de_DE');

// Specify location of translation tables
bindtextdomain("myPHPApp", "./locale");

// Choose domain

// Translation is looking for in ./locale/de_DE/LC_MESSAGES/ now

// Print a test message
echo gettext("Welcome to My PHP Application");

// Or use the alias _() for gettext()
echo _("Have a nice day");

See also setlocale().