Bug #10911 Updated: Accessing null string as array in loop causes infinite spooling.

ID: 10911 Updated by: zeev Reported By: sr2899@hotmail.com Old-Status: Open Status: Closed Bug Type: Scripting Engine problem Operating system: PHP Version: 4.0.5 Assigned To: Comments: Fixed in the latest CVS. Thanks for the report! Previous Comments: --------------------------------------------------------------------------- [2001-06-05 17:31:04] sr2899@hotmail.com I noticed bug id #11218 is almost definately the same bug... the key is that we're accessing an array, looking for indexes where the whole layer of indexes is unset... http://www.php.net/bugs.php?id=11218 The submitter of bug 11218 said: >I just ran your test script on my system from the >command line. Obtained the same behavior you reported. >My system is NT 4.0 SP 6a, PHP 4.0.5. --------------------------------------------------------------------------- [2001-05-16 18:36:16] sr2899@hotmail.com Whoops I accidentally selected latest CVS when I should've said 4.0.5 --------------------------------------------------------------------------- [2001-05-16 18:28:54] sr2899@hotmail.com Accessing null string as array in loop causes infinite spooling. The following code causes php to loop forever. It appears a memory leak unsets the $i variable, although I'm not certain. If allowed to run long enough, error logs appear, such as: child pid 14467 exit signal Segmentation fault (11) FATAL: emalloc(): Unable to allocate 1313818981 bytes <pre> <? $myarray = ""; for ($i = 1; $i <= 5; $i++) { $v = (isset($myarray[1][$i]['value']))?($myarray[1][$i]['value']):''; print $i."...".$v."...n"; } ?> </pre> Output is as follows ------------ HTTP/1.1 200 OK Date: Wed, 16 May 2001 22:20:07 GMT Server: Apache/1.3.19 (Unix) mod_ssl/2.8.3 OpenSSL/0.9.6a Connection: close Content-Type: text/html <pre> 1...... 2...... ...... ...... ...... ...... ------------ After that, it repeats forever... --------------------------------------------------------------------------- ATTENTION! Do NOT reply to this email! To reply, use the web interface found at http://bugs.php.net/?id=10911&edit=2