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@ 2013-05-06T20:31:02Z

<?php
ctype_digit("61");
ctype_digit(61);
var_dump(ctype_digit("61"));
var_dump(ctype_digit(61));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

46.6 ms | 402 KiB | 5 Q