News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Paul Jones' Blog:
Memory Leaks With Objects in PHP 5
September 28, 2007 @ 08:46:00

Paul Jones presents a problem he was having in a new post to his blog - the issue was with memory leaks in objects in a PHP5 application he was working on.

One of the nice things about using a scripting language is that it automates garbage collection for you. You don't have to worry about releasing memory when you're done with your variables. [...] But there is at least one circumstance in which PHP will not free memory for you when you call unset(). Cf. http://bugs.php.net/bug.php?id=33595.

The problem is that, when trying to unset the parent object in a parent/child relationship, the memory space for the parent reference in the child isn't removed. The problem, left unchecked can cause a script to go over the memory limit pretty easily (especially with larger objects).

He suggests two solutions - one that the user can control (calling a destructor before unsetting the object) or a PHP internals method that involves fixing issues with the reference counts created with the objects.

0 comments voice your opinion now!
memory leak object php5 reference parent child release memory leak object php5 reference parent child release


blog comments powered by Disqus

Similar Posts

Pierre-Alain Joye's Blog: PHP 5.2.7RC3 Released (Go test!)

DZone.com: PHP Quick Reference

php|architect: Zend Framework - A Practical Tutorial

PHP.net: PHP 5.2.9-2 (Windows) released

CodeDevelopr.com: 50 Web Developer Documentation Manuals You Need To Know About


Community Events





Don't see your event here?
Let us know!


language laravel security release artisanfiles list community voicesoftheelephpant library symfony opinion series interview version podcast framework introduction tool composer conference

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework