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@ 2013-11-13T13:22:11Z

<?php

var_dump(preg_match('{\bFirePHP/\d+\.\d+\b}', 'FirePHP/123456789012345678901234567890.123456789012345678901234567890a'));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

30.95 ms | 402 KiB | 5 Q