Bug #81027 [Nab]: WeakReference will cause memory leaks

Edit report at https://bugs.php.net/bug.php?id=81027&edit=1 ID: 81027 Updated by: nikic@php.net Reported by: gy dot dlcs at gmail dot com Summary: WeakReference will cause memory leaks Status: Not a bug Type: Bug Package: Unknown/Other Function Operating System: Linux PHP Version: 8.0.6 Assigned To: cmb Block user comment: N Private report: N New Comment: I can't reproduce this. Previous Comments: ------------------------------------------------------------------------ [2021-05-10 14:58:47] cmb@php.net Sorry, but your problem does not imply a bug in PHP itself. For a list of more appropriate places to ask for help using PHP, please visit http://www.php.net/support.php as this bug system is not the appropriate forum for asking support questions. Due to the volume of reports we can not explain in detail here why your report is not a bug. The support channels will be able to provide an explanation for you. Thank you for your interest in PHP. ------------------------------------------------------------------------ [2021-05-10 14:09:11] gy dot dlcs at gmail dot com php 7.4 and 8.0 will be affected ------------------------------------------------------------------------ [2021-05-10 14:04:46] gy dot dlcs at gmail dot com Description: ------------ Just like the test script, When you Uncomment the !$wr->get(); line, You will see the memory leaks in a few seconds. Test script: --------------- <?php ini_set('memory_limit', '16M'); while (true) { $a = new stdClass(); $a->a = $a; $wr = WeakReference::create($a); unset($a); // Uncomment next line, memory will not leak // $wr->get(); // Uncomment next line, memory will leak // !$wr->get(); } Expected result: ---------------- PHP Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 20480 bytes) in test.php on line 9 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=81027&edit=1