What does the function _($string) do in PHP?

php, wordpress

Solution

It is an alias for gettext()

Problem

I noticed this piece of code in Wordpress 2.9.1 (/wp-includes/compat.php), I don't understand it: ``` if ( !function_exists('_') ) { function _($string) { return $string; } } ``` It seems that PHP indeed has a function `_($string)` but I can't find the documentation for it.

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