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@ 2014-04-24T22:35:54Z

<?php
var_dump(ctype_digit("12390712890"));
var_dump(ctype_digit("12390afwe"));
?>

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

40.56 ms | 402 KiB | 5 Q