Data-Caching Strategies in PHP
Apress eBooks · 2009
The first and easiest-to-implement caching technique for your PHP applications is something called opcode caching. Also known as a compiler cache, this technique corrects a rather obvious inefficiency in the way out-of-the-box PHP executes its code. This technique increases the performance of your PHP scripts anywhere from 50 percent to 200 percent with no other code changes. To understand how it works, let’s take a look at what happens when PHP executes a script.