Bug #60000 [Opn->Bgs]: switch with int(0)

Edit report at https://bugs.php.net/bug.php?id=60000&edit=1 ID: 60000 Updated by: johannes@php.net Reported by: k at twojepc dot pl Summary: switch with int(0) -Status: Open +Status: Bogus Type: Bug Package: *Programming Data Structures Operating System: Debian/Windows PHP Version: 5.3.6 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 Switch does a typeless comparison this is needed so code like const A = 1; const B = 2; switch ($_GET['option']) { case A: ... Case B: ... } works. We are aware of the "strange" aspects of it ... Previous Comments: ------------------------------------------------------------------------ [2011-06-28 18:23:01] giorgio dot liscio at email dot it switch uses the == operator so bogus $var = 0; switch (true) { case $var === "abc": echo "abc"; break; case $var === "zxc": echo "zxc"; break; default: echo "def"; break; } ------------------------------------------------------------------------ [2011-06-28 17:35:13] k at twojepc dot pl Description: ------------ Switch use first case element when we use integer zero value. Test script: --------------- <?php $var=0; switch ($var) { case "abc": echo "abc"; break; case "zxc": echo "zxc"; break; default: echo "def"; break; } Expected result: ---------------- def Actual result: -------------- abc ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=60000&edit=1