Bug #71090 [NEW]: Comparison operators loop

From: reallfqq-php at yahoo dot fr Operating system: PHP version: 7.0.0 Package: Scripting Engine problem Bug Type: Bug Bug description:Comparison operators loop Description: ------------ PHP's comparison operators are circular, generatng situations where impossible equalities are considered valid. This bug is posted in reference to: http://phpsadness.com/sad/52 Test script: --------------- <?php function is_sorted($array) { $n = count($array); for ($a=0; $a<$n-1; $a++) { for ($b=$a+1; $b<$n; $b++) { if ($array[$a] > $array[$b]) { return false; } } } return true; } $array = array(INF, array(), (object)array()); sort($array); var_dump(is_sorted($array)) ?> Expected result: ---------------- bool(true) Actual result: -------------- bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=71090&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71090&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71090&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71090&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71090&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71090&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71090&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71090&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71090&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71090&r=support Expected behavior: https://bugs.php.net/fix.php?id=71090&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71090&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71090&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71090&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71090&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71090&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71090&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71090&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71090&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71090&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71090&r=mysqlcfg