This article proposes practical solutions for PHP optimization, buffering, and compression as a popular Web programming language. The biggest advantage of PHP is speed. PHP4 is already doing very well in this regard, and you can hardly find a script programming language that is faster than it. However, if your application load is large, and the bandwidth is small, or there are other bottlenecks that affect your server performance, you may wish to try out some prescriptions I have prescribed for you, check whether it is a lab. I. code optimization I talked about code optimization. maybe this article provides practical solutions for PHP optimization, buffering, and compression.
As a popular Web programming language, the biggest advantage of PHP is speed. PHP4 is already doing very well in this regard, and you can hardly find a script programming language that is faster than it. However, if your application load is large, and the bandwidth is small, or there are other bottlenecks that affect your server performance, you may wish to try out some prescriptions I have prescribed for you, check whether it is a lab.
I. code optimization
When it comes to code optimization, you may think of neat and clear code, but this article does not mean it here, because if you want to seek speed, you need to adjust the PHP source code accordingly. In general, it is to remove unnecessary comments and make the code unreadable. However, this is incredible for a good programmer. Fortunately, Zend Technologies has released the Zend optimization engine to help you achieve this. It is free now, but you must follow the Zend Optimizer license. This product can optimize the intermediate code generated by the engine.
It is relatively simple to install this engine. after downloading the version of the corresponding platform, uncompress the compressed file and add the following two lines to the php. ini file to restart the Web server.
Zend_optimizer.optimization_level = 15
Zend_extension = "/path/to/ZendOptimizer. so"
Zend_loader.enable = Off
If it is a Win32 platform, it should be:
Zend_optimizer.optimization_level = 15
Zend_extension_ts = "C: \ path \ to \ ZendOptimizer. dll"
Zend_loader.enable = Off
Ah! Not wrong, right? How are three rows? In fact, the third row is optional. Because it seems that turning zend_loader off can improve the speed, it is worth putting the third line in php. ini. Note that you are not using Zend encryption.
II. Buffering
If we want to further speed up, we need to consider using the buffer technology. There are some optional solutions, including Zend Cache (test version), APC, Afterburner Cache, and jpCache.
These are all buffer modules. they store the intermediate code generated for the first request to the. php file in the memory of the Web server, and then return the compiled version for future requests. Because this reduces disk read/write and all work in the memory, this process can significantly improve application performance,
There are many ready-made products. who should I choose?
Zend Cache is a good commercial product. after loading those huge PHP pages for the first time, you will obviously feel the speed improvement and the server will set aside more resources. It is a pity that this product is for silver, but in some cases, you should not be stingy with the silver.
Afterburner Cache is a product of Bware Technologies and is currently in Beta version. it seems to be the same as Zend Cashe, but it cannot achieve the same effect as Zend Cache and cannot work with Zend optimization engine, but it is free, so I use this module.
