Bug #75730 [NEW]: Stuck on is_null()

From: momchil at bojinov dot info Operating system: Windows 10 PHP version: 7.1.12 Package: Scripting Engine problem Bug Type: Bug Bug description:Stuck on is_null() Description: ------------ Hello, I m refactoring some old code and I hit a roadblock if (is_null($Ticks)) { - That one gets PHP.EXE stuck consuming lots of CPU #if ($Ticks == NULL) { - That one runs fine I have packaged the entire solution: bojinov.info/momchil/php/bug.zip It contains PHP 7.1.12 x64 TS with all the needed scripts to execute run php examples\example.basic.php Test script: --------------- php examples\example.basic.php Expected result: ---------------- nothing Actual result: -------------- PHP hangs -- Edit bug report at https://bugs.php.net/bug.php?id=75730&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75730&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75730&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75730&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75730&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75730&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75730&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75730&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75730&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75730&r=support Expected behavior: https://bugs.php.net/fix.php?id=75730&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75730&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75730&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75730&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75730&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75730&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75730&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75730&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75730&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75730&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75730&r=mysqlcfg