Bug #69165 [NEW]: Passing result of assignation by reference

From: contact at jubianchi dot fr Operating system: PHP version: master-Git-2015-03-02 (Git) Package: Variables related Bug Type: Bug Bug description:Passing result of assignation by reference Description: ------------ There seems to be a bug when passing the result of an assignation to a function expecting a reference. I extracted a snippet from atoum where we use a trick to verify if a variable is a reference to another and saw from the tests that PHP7's behavior changed Test script: --------------- <?php // http://3v4l.org/UrMbA function cmp(& $reference, & $value) { $tmp = $reference; $reference = uniqid(mt_rand()); $isReference = ($value === $reference); $reference = $tmp; return $isReference; } $value = uniqid(); $reference = & $value; var_dump(cmp($reference, $value)); $value = new \exception(); var_dump(cmp($reference, $value)); var_dump(cmp($reference, $value = new \exception())); Expected result: ---------------- bool(true) bool(true) bool(true) Actual result: -------------- bool(true) bool(true) bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=69165&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69165&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69165&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69165&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69165&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69165&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69165&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69165&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69165&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69165&r=support Expected behavior: https://bugs.php.net/fix.php?id=69165&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69165&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69165&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69165&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69165&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69165&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69165&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69165&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69165&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69165&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69165&r=mysqlcfg