Bug #68346 [Opn->Nab]: Bug on switch in case 0

Edit report at https://bugs.php.net/bug.php?id=68346&edit=1 ID: 68346 Updated by: requinix@php.net Reported by: codingcarlos at gmail dot com Summary: Bug on switch in case 0 -Status: Open +Status: Not a bug Type: Bug Package: Testing related Operating System: windows/linux PHP Version: Irrelevant 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(X) case Y" is like saying "if (X == Y)". So what you've done is create if ($number == $number < 2) { ... } else if ($number == $number < 5) { ... } else if ($number == $number >= 5) { ... } which is obviously not what you intended. You can't do a "case < 2" but you can do switch (true) { case ($number<2): // if (true == $number < 2) case ($number<5): // if (true == $number < 5) case ($number>=5): // if (true == $number >= 5) } Previous Comments: ------------------------------------------------------------------------ [2014-11-05 09:36:15] codingcarlos at gmail dot com Description: ------------ When a variable is stored via $_GET method (even when parsing to integer) and used in a switch, fails on case 0. When you use it like: example.php?num=0 You will get the result: "The number 0 is higer than 5." (Obiously fail) But if you use 00 instead of 0: example.php?num=00 You will get the result: "The number 00 is lower than 2." (Which is true) It also works with " 0": example.php?num= 0 You will get the result: "The number 00 is lower than 2." (Which is true) Test script: --------------- $number = $_GET['num']; // $number = intval($_GET['num']); // $number = (int) $_GET['num']; switch ($number) { case ($number<2): $result = 'lower than 2'; break; case ($number<5): $result = 'lower than 5'; break; case ($number>=5): $result = 'higer than 5'; break; // Se mete aqui con nota = 10 } echo "The number " . $number . " is " . $result . "."; Expected result: ---------------- The number 0 is lower than 2. Actual result: -------------- The number 0 is higer than 5. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68346&edit=1