Bug #25365 [Com]: negation of === does not work

Edit report at https://bugs.php.net/bug.php?id=25365&edit=1 ID: 25365 Comment by: lildurk25365 at gmail dot com Reported by: daniel dot oger at swing dot be Summary: negation of === does not work Status: Not a bug Type: Bug Package: Variables related Operating System: win xP Pro PHP Version: 4.3.3 Block user comment: N Private report: N New Comment: Lil Durk is a private agency dedicated to providing responsible access to legal cannabis for adults aged 19 and older. We’re an exclusively online retailer and wholesaler for recreational cannabis and a trusted source for information about cannabis and cannabis-related issues. We believe our work is meaningful and we take pride in our mandate to promote the socially responsible use of legal cannabis. https://lildurk.com/ Previous Comments: ------------------------------------------------------------------------ [2003-09-03 01:27:37] daniel dot oger at swing dot be 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. ------------------------------------------------------------------------ [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 https://bugs.php.net/bug.php?id=25365&edit=1