PHP bug #53632 in floating point numbers has been dealt with. The bug is deemed to be a fault in the x87 floating point unit, which showed up on PHP 32-bit systems. It was detected by a computer scientist Rick Regan, who described the flaw in his blog.
This flaw issue made PHP security systems vulnerable to potential DOS attack and could have complicated the process of serving PHP-based pages. Though, Andi Gutmans, CEO of Zend Technologies, reassured that this PHP bug was unlikely to cause severe problems on a large scale as major PHP running systems are 64-bit.
The PHP language developers have come up with the solution to this problem, which they bypassed in the new PHP releases (PHP 5.3.5 and 5.2.17), while Zend technologies provided for Zend Server users prompt response to the problem until the bug was fully fixed by the PHP development team.
PHP is frequently used by software companies in web application development projects and new PHP 5.3.5 and 5.2.17 versions allow web application developers to sidestep the problems, connected with the floating point bug in the previous PHP releases.