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@ 2014-07-20T09:46:24Z

<?php

$folder = 'PhpStorm-138.940';

var_dump(preg_match('138.940', $folder));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

35.23 ms | 402 KiB | 5 Q