Bug #65570 [Opn->Nab]: 0 equals any string

Edit report at https://bugs.php.net/bug.php?id=65570&edit=1 ID: 65570 Updated by: nikic@php.net Reported by: l dot werner at sprengnetter dot de Summary: 0 equals any string -Status: Open +Status: Not a bug Type: Bug Package: *General Issues Operating System: Linux PHP Version: 5.5.3 Block user comment: N Private report: N New Comment: Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. http://php.net/manual/en/language.operators.comparison.php Previous Comments: ------------------------------------------------------------------------ [2013-08-28 09:15:38] l dot werner at sprengnetter dot de Description: ------------ When matching any string against 0 with == or != PHP will say they match. This is in my eyes absolutely wrong because testing against other types will not result in this behavior. Test script: --------------- <?php echo "null != 'string' -> "; var_dump(null != 'string'); echo "<br />"; echo "false != 'string' -> "; var_dump(false != 'string'); echo "<br />"; echo "0 != 'string' -> "; var_dump(0 != 'string'); echo "<br />"; echo "1 != 'string' -> "; var_dump(1 != 'string'); Expected result: ---------------- null != 'string' -> bool(true) false != 'string' -> bool(true) 0 != 'string' -> bool(true) 1 != 'string' -> bool(true) Actual result: -------------- null != 'string' -> bool(true) false != 'string' -> bool(true) 0 != 'string' -> bool(false) 1 != 'string' -> bool(true) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=65570&edit=1