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@ 2015-04-03T12:06:32Z

<?php
$a = '011';
var_dump($a);
var_dump(is_int($a));
var_dump(ctype_digit($a));

$a = 011;
var_dump(is_int($a));

$a = '11';
var_dump(is_int($a));

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

45.19 ms | 402 KiB | 5 Q