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@ 2014-10-28T09:40:28Z

<?php
var_dump((bool)preg_match("/^\d{2}-\d{3}$/u", '81-7123'));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

37.98 ms | 402 KiB | 5 Q