Bug #69558 [NEW]: switch statement output unexpected

From: stephane at winnepenninckx dot com Operating system: mac os x 10.10 PHP version: 5.6.8 Package: Scripting Engine problem Bug Type: Bug Bug description:switch statement output unexpected Description: ------------ the case $i < 1 down not occur for $i = 0, the script goes to the default case: ----------------- 0 : Oops ----------------- If you delete the default case : ----------------- 0 : quite bad! ----------------- I try with the for loop modified : for ($i = 10.1; $i >= 0; --$i) then the case $i<1 occurs : ----------------- 0.1 : really!! ----------------- It looks like there is a problem with the value 0 when comparing to 1 also in older versions of PHP like 5.5 Test script: --------------- $sep = PHP_EOL.'-----------------'.PHP_EOL; echo 'switch demo'; echo $sep; for ($i = 10; $i >= 0; --$i) { switch($i) { case $i < 1 : $msg = 'really!!'; break; case $i < 3 : $msg = 'quite bad!'; break; case $i < 5 : $msg = 'pay attention!'; break; case $i <= 9 : $msg = 'quite good'; break; case $i <= 10 : $msg = 'congrat'; break; default: $msg = 'Oops'; break; } echo $i . ' : '.$msg.$sep; } Expected result: ---------------- when $i = 0 the $msg should be 'really!!' not 'Oops': ----------------- 0 : really!! ----------------- -- Edit bug report at https://bugs.php.net/bug.php?id=69558&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69558&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69558&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69558&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69558&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69558&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69558&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69558&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69558&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69558&r=support Expected behavior: https://bugs.php.net/fix.php?id=69558&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69558&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69558&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69558&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69558&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69558&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69558&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69558&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69558&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69558&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69558&r=mysqlcfg