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@ 2013-05-06T17:49:37Z

<?php
var_dump(ctype_digit(48));
var_dump(ctype_digit("573"));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
ctype_digit: documentation ( source)

preferences:dark modelive preview

52.15 ms | 402 KiB | 5 Q