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@ 2014-10-23T00:48:18Z

<?php
var_dump(preg_replace("/.*(gf).*/", '$1', 'jQuery("#gf_form_1")'));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_replace: documentation ( source)

preferences:dark modelive preview

39.2 ms | 402 KiB | 5 Q