note 123633 deleted from function.is-numeric by crell

Note Submitter: sandreas ---- Note that strings with leading zeros containing only digits also return true on check with is_numeric, although they might be not a valid number. Example: <?php $x = 009; // this is invalid php code, 009 is not octal $y = 007; // this is valid php code, 007 is octal $z = 01.12; // this also is valid php code var_dump(is_numeric("009")); // outputs true var_dump(is_numeric("007")); // outputs true var_dump(is_numeric("00.12")); // outputs true ?>