ID: 47525 Updated by: j...@php.net Reported By: rodricg at sellingsource dot com -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: linux PHP Version: 5.2.9 New Comment:
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 This is a side-effect of the Zend memory manager. If you run the script with PHP build with --enable-debug and like this: # USE_ZEND_ALLOC=0 php test.php new A(): 8,280 $a->str: 8,280 $a->getStr(): 8,280 $a->magic(): 8,280 You see that there is no leak or unnecessary "copying" anywhere. Previous Comments: ------------------------------------------------------------------------ [2009-02-28 01:56:43] rodricg at sellingsource dot com Description: ------------ Values returned from the magic __call method are copied immediately resulting in increased memory usage. Reproduce code: --------------- <?php function mem($msg='') { echo ($msg ? $msg.": " : '').number_format(memory_get_usage(1))."\n"; } class A { public $str; public function __construct() { $this->str = str_repeat("a", 1000000); } public function __call($m, $a) {return $this->str;} public function getStr() {return $this->str;} } $a = new A(); mem('new A()'); $b = $a->str; mem('$a->str'); $c = $a->getStr(); mem('$a->getStr()'); $d = $a->magic(); mem('$a->magic()'); ?> Expected result: ---------------- new A(): 1,310,720 $a->str: 1,310,720 $a->getStr(): 1,310,720 $a->magic(): 1,310,720 Actual result: -------------- new A(): 1,310,720 $a->str: 1,310,720 $a->getStr(): 1,310,720 $a->magic(): 2,359,296 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47525&edit=1
