Keep your PHP program on a gallop PHP program optimized to explore the secret

PHP is a scripting language that is easy to learn and is popular with many web developers, but PHP also adheres to many of the pitfalls of scripting languages, such as large numbers of code and low execution efficiency, so optimization is a skill that PHP developers must master.

This issue of the topic from a number of aspects of a more comprehensive and detailed description of the PHP acceleration of the relevant technology, including testing technology, acceleration technology (compression, caching, etc.), basically have a code and examples. I hope to help readers understand the PHP program acceleration and choose the appropriate acceleration scheme in practical application.

　　Brief Introduction

Today, few people doubt that time is the most valuable asset, especially in the marketplace.　The faster the program, the more users save time, so that your program can use less time and server resources to serve users, thereby generating more benefits. >>>[ Full text read ]

Server load Test

The server load is too large to affect program efficiency is also very common, we need to test this. 　Here I take the current most common Apache server as an example. >>>[ Full text read ]

Script Execution Speed test

Only by finding the code that affects speed can we optimize. 　The Benchmark_timer class and Benchmark_iterate class in Pear's benchmark package can be used to easily test the speed of script execution. >>>[ Full text read ]

Code Optimization

With Pear::benchmark, you already know how to test your code, know how to judge if your code is fast or slow, and which part is slower.　　So the next thing I want to say is how to eliminate or optimize that part of the slow code. >>>[ Full text read ]

Compressed Output gzip

Using the Mod_gzip module in Apache, we can use the GZIP compression algorithm to compress the content of the Web page published by the Apache server and then transfer it to the client's browser. 　If the content is plain text, the effect is very obvious, can be compressed to the original 30%-40%, so that the user's browsing speed greatly accelerated. >>>[ Full text read ]

Cached Output

Next we start to explore more commonly used caching techniques, which is also a key part of this article. First we use the cache package in pear. 　Pear can cache content in a file, in a database, or in memory, as an example of a file. >>>[ Full text read ]

Accelerator Tool Software

Finally, let's focus on another area of PHP acceleration-caching tool software. This kind of software is from optimizes PHP to run the environment to speed up, do not need to change any code. 　　We can probably refer to them as "Execution code optimization/Caching Tools", which you can understand to implement the lower-level optimizations/caches. >>>[ Full text read ]