Bug #67845 [Opn->Dup]: Resource ids may overflow when running a daemon or large app

Edit report at https://bugs.php.net/bug.php?id=67845&edit=1 ID: 67845 Updated by: cmb@php.net Reported by: blondie101010 at hotmail dot com Summary: Resource ids may overflow when running a daemon or large app -Status: Open +Status: Duplicate Type: Bug Package: Scripting Engine problem Operating System: Gentoo PHP Version: Irrelevant -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: This is actually a duplicate of bug #47396. Previous Comments: ------------------------------------------------------------------------ [2021-07-27 14:04:30] cmb@php.net This is not particularly related to streams, but rather a general issue regarding resources. ------------------------------------------------------------------------ [2021-02-16 14:21:42] cmb@php.net Related To: Bug #69109 ------------------------------------------------------------------------ [2015-05-24 22:56:31] nikic@php.net Related To: Bug #69702 ------------------------------------------------------------------------ [2014-08-14 21:02:48] blondie101010 at hotmail dot com Description: ------------ Working on a socket server, I had wondered what would happen when the resource id would reach 31 bits long, so I used the code below to test it. Inevitably it failed at 2147483647. A proactive solution would be for it to wrap once it reaches its limit, of course checking to see if the resource is already assigned. An alternative would be to reuse freed resource ids but I can already see many bad programmers who would be scared by that option. Test script: --------------- <?php for ($i = 0; $i < 5000000000; $i ++) { $fp = fopen("/dev/null", "w"); if (($i % 500000) == 0) { var_dump($fp); system("date"); } // if fclose($fp); } // for ?> Expected result: ---------------- Keep running as there are actually no resources in use. Actual result: -------------- It starts giving errors when it exceeds 31 bits on my 32 bit system. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=67845&edit=1