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@ 2013-12-17T15:29:42Z

<?php

var_dump(preg_match("/([a-zA-Z0-9\-_~!$&'()*+,;=:@]+)/", 'abc?', $m));

var_dump($m);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
preg_match: documentation ( source)

preferences:dark modelive preview

40.54 ms | 402 KiB | 5 Q