Bug #62135 [NEW]: Closure->bindTo plus $this reassign = corruption

From: Sjon at hortensius dot net Operating system: ArchLinux PHP version: 5.4.3 Package: Scripting Engine problem Bug Type: Bug Bug description:Closure->bindTo plus $this reassign = corruption Description: ------------ I just found the bindTo method on a Closure, a started to play with it. I found out I can get some serieusly strange behaviour by re-assigning $this. Somehow I end up with one variable pointing to different objects? Test script: --------------- From: http://3v4l.org/bp598#v540 <?php class A { public $a = 'public'; } $m = function (){ $x =& $this; $x = new stdClass; var_dump($this, $this->a); }; $a = new A; $m = $m->bindTo($a); $m(); Expected result: ---------------- * Cannot re-assign $this OR * 'stdClass' + Notice OR * 'A' + 'public Actual result: -------------- object(stdClass)#1 (0) { } string(6) "public" -- Edit bug report at https://bugs.php.net/bug.php?id=62135&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62135&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62135&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62135&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=62135&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62135&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=62135&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=62135&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=62135&r=needscript Try newer version: https://bugs.php.net/fix.php?id=62135&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=62135&r=support Expected behavior: https://bugs.php.net/fix.php?id=62135&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=62135&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=62135&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=62135&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62135&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=62135&r=dst IIS Stability: https://bugs.php.net/fix.php?id=62135&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=62135&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=62135&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=62135&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=62135&r=mysqlcfg