Improved Performance

One of the greatest features in PHP 4 is the performance boost it gives over PHP 3. Tests (available from Zend) show that the same scripts run with PHP 4 instead of PHP 3 show a 50 “1,000% performance increase. You can also use PHP 4 with the free Zend Optimizer (available from Zend Technologies, http://www.zend.com/), which gives PHP 4 an additional 40 “100% speed boost. How much of a speed improvement you get depends on the structure of your scripts.