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@ 2014-04-15T22:09:00Z

<?php
var_dump(preg_match('/^[[:alnum:]]$/U', "\xc3\x84"));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

32.22 ms | 402 KiB | 5 Q