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@ 2013-09-02T07:29:48Z

<?php

$a = array();

$r = is_numeric($a[1]);

var_dump($r);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
is_numeric: documentation ( source)

preferences:dark modelive preview

32.56 ms | 402 KiB | 5 Q