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@ 2014-01-26T10:25:30Z

<?php
var_dump(is_numeric("4"),"  4","    4","  4" == "    4");
var_dump("  4 " == "    4 ");

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

36.25 ms | 402 KiB | 5 Q