Edit report at https://bugs.php.net/bug.php?id=65166&edit=1
ID: 65166 Comment by: gavroche dot bull at gmail dot com Reported by: gavroche dot bull at gmail dot com Summary: PHP Generator yield causing zend_mm_heap corrupted Status: Open Type: Bug Package: Unknown/Other Function PHP Version: master-Git-2013-06-29 (Git) Block user comment: N Private report: N New Comment: And no, I have not been able to reproduce the bug without mongo db. Previous Comments: ------------------------------------------------------------------------ [2013-06-29 22:32:24] gavroche dot bull at gmail dot com Actually after investigation more, this code alone does not produce the error. But it now seems that having too much lines of code in the script will produce this error or a segmentation fault error. For example, if I remove unused lines of code, the code execute properly. If I change those unused lines of code for other lines like "null;", the error appears again. ------------------------------------------------------------------------ [2013-06-29 22:18:03] ni...@php.net Is it possible to reproduce this crash without the use of mongo db? If not, it would be nice to have a backtrace for this (as described on https://bugs.php.net/bugs-generating-backtrace.php). ------------------------------------------------------------------------ [2013-06-29 21:59:27] gavroche dot bull at gmail dot com Description: ------------ The yield function in the example below gives a "zend_mm_heap corrupted" error. Test script: --------------- function dump($chunk = 500) { $m = new MongoClient(); $db = $m->dbname; $collection = $db->selectCollection('collectionname'); $cursor = $collection->find(); $count = 0; $output = []; foreach ($cursor as $doc) { $doc = array_filter($doc, function($v) { return !is_object($v); }); $output[] = $doc; $count++; if ($count === $chunk) { yield json_encode($output); $output = []; $count = 0; } } yield json_encode($output); } foreach(dump() as $dump) { var_dump($dump); } Expected result: ---------------- No error. Actual result: -------------- zend_mm_heap corrupted ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=65166&edit=1
