PHP Tutorial. Application example 11. One of the biggest advantages of PHP in terms of speed-up is its speed. In general, PHP always has enough speed to support dynamic generation of Web content. in many cases, you cannot even find a PHP application to speed up.
One of the biggest advantages of PHP is its speed. In general, PHP always has enough speed to support dynamic generation of Web content. in many cases, you cannot even find a faster method than it. However, when you have to deal with huge traffic volumes, high-load applications, limited bandwidth, and other factors that bring performance bottlenecks, you may ask yourself if you can do something to make your website run better. Perhaps your PHP application performance and Web server response speed will be significantly improved by adding a very inconspicuous free module. This article discusses how to further improve the performance of php applications and give users a better browsing experience. This article focuses on three aspects (code optimization, caching, and content compression), describes various technologies to improve the performance of PHP applications, and introduces well-known products in various fields.
Code Optimization
First, let's look at code optimization. Note: The code optimization here does not mean to write the code more beautiful and beautiful, because it is already known that there is no need to continue the discussion. In addition, if you have already considered the speed issue, it is very likely that you have already optimized the source code of PHP. However, some tools can automatically help us with these complicated tasks, such as Zend Optimizer. Zend Optimizer can be obtained free of charge from Zend Technologies, but you must agree with its license agreement, note that it is not released in GPL mode. Zend Optimizer obtains and optimizes the intermediate code generated during Zend Engine runtime, so that the intermediate code can be executed more efficiently.
The Zend Optimizer installation method is very simple. you only need to download the pre-compiled version provided for your platform, add the following two lines of code to php. ini, and then restart the Web server:
Zend_optimizer.optimization_level = 15
Zend_extension = "/path/to/ZendOptimizer. so"
Zend_loader.enable = Off
The third line of code added here is optional. Disabling zend_loader seems to make Zend Optimizer faster, so it is worth adding this line of code in php. ini. Note: zend_loader can be disabled only when Zend Encoder Runtime is not used.
Cache
If you want to improve the performance of your huge PHP application, using cache is also a good method. There are already many caching schemes available, including Zend Cache, APC, and Afterburner Cache.
All these products belong to the cache module ". When a request to the. PHP file appears for the first time, it will save the PHP intermediate code in the memory of the Web server, and then respond to the subsequent request with the "compiled" version. This method can indeed improve the performance of the application, because it minimizes the disk access volume (the code has been read and parsed ), the code runs directly in the memory, greatly improving the server's response speed. Of course, the cache module also monitors changes in PHP source files and caches pages again when necessary to prevent users from generating pages from outdated PHP code. Because the cache module can significantly reduce the server load and improve the response efficiency of PHP applications, it is very suitable for websites with large loads.
One of the biggest advantages of PHP is its speed. In general, PHP always has enough speed to support dynamic generation of Web content. in many cases, you cannot even find it...
