Bug #72348 [Opn->Nab]: Ignored variable value in if-request when switching the var type

Edit report at https://bugs.php.net/bug.php?id=72348&edit=1 ID: 72348 Updated by: cmb@php.net Reported by: toastboot at gmx dot de Summary: Ignored variable value in if-request when switching the var type -Status: Open +Status: Not a bug Type: Bug Package: *General Issues Operating System: Win 7 PHP Version: 5.6.22 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: 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 Particularly, see <http://php.net/manual/en/types.comparisons.php>. Previous Comments: ------------------------------------------------------------------------ [2016-06-06 18:34:32] toastboot at gmx dot de Description: ------------ In advance I have to say, that it is not version 5.6.22 but 5.6.3 (german XAMPP installation) where I found the issue. I can't find this version in your list. Maybe you can change your list and then refer it correctly?!? Normally I like the variable handling in PHP, that includes the possibility to be able to switch between var types but there is an issue with the var types. It can occur that an if-request will ignore the variable value... See more in the test script / example as follows... Additional warning: I have not made any deeper checks but maybe it can cause security issues. In a simple check I saw, that it seems not to be possible to cause this issue via GET. There it works correctly (in my test scenario) but maybe there are other possibilities... Test script: --------------- $the_variable = 0; /* make sth */ if($the_variable == "stop") { # 'the_variable' is still set to 0 echo "hello"; } # This will cause the wrong behaviour that the code within the if-request will be executed / 'hello' is displayed. # now try it vice versa: $the_variable = "stop"; if($the_variable == 0) { echo "hello"; } # The second if-request works as expected. ## Workaround ## # use '===' instead of '==' ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72348&edit=1