#25365 [Bgs]: negation of === does not work

ID: 25365 User updated by: daniel dot oger at swing dot be Reported By: daniel dot oger at swing dot be Status: Bogus Bug Type: Variables related Operating System: win xP Pro PHP Version: 4.3.3 New Comment: My purpose is to check the result of strpos() when the searched string is at the beginning of the word ==>(strpos()=0. I use === to make a distinction between FALSE and zero. Previous Comments: ------------------------------------------------------------------------ [2003-09-02 14:13:31] derick@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This is exactly what should happen it is evaluated as if ((!$result) === FALSE) which of course is FALSE as !$result <=> TRUE (0 is considered as FALSE): <?php $r = 0; var_dump(!$r); ?> bool(true) ------------------------------------------------------------------------ [2003-09-02 14:12:35] pollita@php.net That's because you're supposed to use "!==", i.e.: if ($result !== FALSE) echo "ZERO"; else echo "EMPTY"; ------------------------------------------------------------------------ [2003-09-02 14:03:38] daniel dot oger at swing dot be Description: ------------ The === operator does not work if preceeded with ! Reproduce code: --------------- $result=0; // number zero if (!$result === FALSE) echo "ZERO"; else echo "EMPTY"; Expected result: ---------------- ZERO Actual result: -------------- EMPTY ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=25365&edit=1