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


मैंने यह कोड Wordpress 2.9.1 (/ wp-includes/compat.php) में देखा, मैं नहीं इसे समझें: 

  यदि (! Function_exists ('_')) {function _ ($ string) {return $ string; }}

ऐसा लगता है कि PHP वास्तव में एक फ़ंक्शन है _ ($ string) लेकिन मुझे उसके लिए प्रलेखन नहीं मिल सकता है।

यह

के लिए उपनाम है

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