#6333 [Com]: garbage collection is not being performed on create_function?

ID: 6333 Comment by: josh at mykoala dot com Reported By: ewdafa at ewdafa dot b0rk dot co dot uk Status: Closed Bug Type: Performance problem Operating System: linux-2.2.16 PHP Version: 4.0.1pl2 New Comment: It's been said that this is just how the function works, but it seems as though destroying allocations for an anonymous function when redefining to the same variable would be the way to handle it. Example: for ($i=0; $i<10; $i++) { $echoit = create_function('$wha', 'echo $wha;'); echo memory_get_usage(); $echoit(" on iteration: #$i\n"); } How else can you dynamically modify function or code without reloading a script? Previous Comments: ------------------------------------------------------------------------ [2000-09-07 11:43:23] andi@php.net This isn't a bug but how it works. Each create_function() call creates a new unique function. So obviously if you define zillions in an infinite loop you'll run out of memory. ------------------------------------------------------------------------ [2000-08-24 09:57:38] ewdafa at ewdafa dot b0rk dot co dot uk the following code causes PHP to continually eat more and more memory where it should be destroying the old reference for $func. while(1) { $array = array(); $func = create_function('', "return 0;"); $array[] = $func; $func = 0; echo "sleeping for a second.\n"; sleep(1); } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=6333&edit=1