ID: 33468 Updated by: [EMAIL PROTECTED] Reported By: mjsherman at chartermi dot net -Status: Assigned +Status: Bogus Bug Type: PCRE related Operating System: * PHP Version: 5CVS, 4CVS (2005-08-09) Assigned To: andrei New Comment:
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. This is the limitation of PCRE library, which limits the size of certain elements to prevent massive memory usage. This is not a PHP limit and as such is not a PHP bug. Previous Comments: ------------------------------------------------------------------------ [2005-08-11 00:13:18] bugs dot php dot net at chsc dot dk An even simpler testcase: $data = str_repeat('a', 9999); preg_match('/(?:[a])*/', $data, $reg); Notice that the parenthesis is non-capturing, i.e. we don't even put a lot of elements in the $reg array. ------------------------------------------------------------------------ [2005-08-09 10:36:28] [EMAIL PROTECTED] Happens also with the new PCRE 6.2 lib which was bundled in PHP CVS today. ------------------------------------------------------------------------ [2005-06-24 19:30:06] [EMAIL PROTECTED] Andrei, could you check it plz. As far as I understand, this is something not related to PHP, but just another PCRE limitation. ------------------------------------------------------------------------ [2005-06-24 18:24:34] mjsherman at chartermi dot net Description: ------------ preg_match, if passed a long subject string, fails unexpectedly. I have read through the PCRE limitations, and can't see that this is one of them. I have tried increasing memory limit (to increase the stack) with the same results. Cutoff and examples are below: Reproduce code: --------------- $subject = str_repeat('a',100); $subject .= str_repeat('b', 4370); $subject .= str_repeat('a', 100); if (preg_match('/(.*).*?\1/',$subject)) { echo "OK\n"; } Expected result: ---------------- "OK" to be printed after matching 100 "a"s. If 4370 is changed to 4369, then "OK" is printed. Actual result: -------------- With 4370 'b's, nothing is printed (failed preg_match) With 4369 'b's, "OK" is printed (worked). ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=33468&edit=1
