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@ 2014-02-11T09:47:53Z

<?php
var_dump(
	is_numeric('1 '),
	is_numeric(' 1'),
	is_numeric(' a')
);

Output
Performance
VLD
References
Branches

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

preferences:dark modelive preview

47.51 ms | 402 KiB | 5 Q