ID: 49345 User updated by: pearl1985 at interia dot pl -Summary: To much used memory Reported By: pearl1985 at interia dot pl Status: Bogus Bug Type: Performance problem Operating System: Windows XP x64 PHP Version: 5.3.0 New Comment:
Ok, explain to me why, memory used by function create_function is not released after using function unset?? Previous Comments: ------------------------------------------------------------------------ [2009-08-24 14:28:22] [email protected] Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php unset() does not free any memory. ------------------------------------------------------------------------ [2009-08-24 13:50:49] pearl1985 at interia dot pl Description: ------------ When I was using function lambda in class, I saw that it is using a lot of operating memory. I saw this error when the script was sending e-mails reports to users registered in my service. Reproduce code: --------------- <?php class example { function test() { $var = create_function('', '$a = 1;$b=2;$c=$a+$b;'); $var(); unset($var); } } $example = new example; for($i=0;$i<=10000;$i++) { $example->test(); } echo 'Results after remove lambda'."\n"; echo 'Memory limit: '.ini_get('memory_limit')."\n"; echo 'Usage: '. round(memory_get_usage()/1024/1024, 1)."\n"; echo 'Peak:'. round(memory_get_peak_usage()/1024/1024, 1); echo "\n"; ?> Expected result: ---------------- I expected a slight growth of operating memory usage by script. By using endless loop, I expect the script will be executing even for 2 hours, thanks to correction of appropriate php configuration directive. Actual result: -------------- When I used endless loop while(true), php engine ended its work after 2 minutes,generating error "PHP Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 40961 bytes)" ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=49345&edit=1
