#49866 [Asn->Csd]: Making reference on string offsets crashes PHP

ID: 49866 Updated by: dmitry@php.net Reported By: doctorrock83 at gmail dot com -Status: Assigned +Status: Closed Bug Type: Scripting Engine problem Operating System: Linux PHP Version: 5.3.0 Assigned To: dmitry New Comment: This bug has been fixed in SVN. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2009-12-07 08:47:19] svn@php.net Automatic comment from SVN on behalf of dmitry Revision: http://svn.php.net/viewvc/?view=revision&revision=291810 Log: Fixed bug #49866 (Making reference on string offsets crashes PHP) ------------------------------------------------------------------------ [2009-10-13 17:30:19] felipe@php.net Dmitry, this is related to rev.251187 and rev.244680 (fix for #35163) ------------------------------------------------------------------------ [2009-10-13 16:08:41] doctorrock83 at gmail dot com Description: ------------ When making a reference on a string offset and changing it, PHP5.3 crashes with segfault, but PHP 5.2, 5.1 and 5.0 throws errors. I know that it's a bad PHP programming than thinking PHP is C, the fact is that this behavior gives PHP errors in 5.2/5.1/5.0 branches, but segfaults 5.3.0 release. Reproduce code: --------------- <?php $a = "string"; $b = &$a[1]; $b = "f"; echo $a; Expected result: ---------------- sfring But PHP5.2.0 and 5.0.0 tell : "Fatal error: Cannot create references to/from string offsets nor overloaded objects in XXX" PHP 5.1.0 tells: "Fatal error: fatal flex scanner internal error--end of buffer missed in XXX" PHP5.3 segfaults Actual result: -------------- segmentation faults ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=49866&edit=1