#45328 [Opn->Ver]: post_max_size of 6144M of greater causes $_POST to fail

ID: 45328 Updated by: thiago@php.net Reported By: corry dot gellatly at ncl dot ac dot uk -Status: Open +Status: Verified Bug Type: Documentation problem Operating System: Linux (Fedora Core 8) PHP Version: 5.2.6 -Assigned To: +Assigned To: thiago Previous Comments: ------------------------------------------------------------------------ [2008-07-15 02:46:39] jani@php.net You're just hitting the limit of 32bit signed integer. M in php.ini's is converted to 1024 * 1024 and 6144M == 6144 * 1024 * 1024. Supported ini "helpers" are: G = 1024 * 1024 * 1024 (giga) M = 1024 * 1024 (mega) K = 1024 (kilo) ------------------------------------------------------------------------ [2008-06-21 19:06:39] corry dot gellatly at ncl dot ac dot uk Description: ------------ Setting post_max_size to a value of 6144M or greater causes $_POST to fail, for example to log in and start a session with the simple code below: <?php session_start(); $username = $_POST['username']; $password = $_POST['password']; ...etc. ?> It will also cause the login to phpMyAdmin to fail with the error message: Warning: Unknown: POST Content-length of 81 bytes exceeds the limit of -2147483648 bytes in Unknown on line 0 At a guess, perhaps to due to the post_max_size variable type? Although 6144M is perhaps an excessive post size maximum, a comment in the php.ini file warning of the maximum limit would be helpful. Reproduce code: --------------- Can be reproduced with the index.php page of phpMyAdmin 2.10.0.2 and above Expected result: ---------------- Failed login when post_max_size >= 6144M ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=45328&edit=1