PHP Performance Optimization Preparation Illustrated PEAR Installation_PHP Tutorial

What is PEAR

PEAR is the abbreviation of the PHP Extension and Application Repository. It is a code repository for PHP extensions and applications. Simply put, PEAR is the CPAN of PHP.

Why install PEAR

PEAR provides a rich set of PHP extension tool classes, which are simple and easy to use and can be used in various projects. Benchmark is an extension package of PEAR. It provides three tool classes: Timer, Iterate and Profiler, which can be used for breakpoint debugging to obtain the execution time of the code during performance optimization.

How to install PEAR

Open the PHP root directory of the source code installation, such as C:Program Filesphp5php-5.2.6, double-click go-pear. bat file, the illustrated installation process is as follows

In this way, PEAR is installed successfully. The installation process basically only requires pressing the Enter key, which is very simple.

How to install the Benchmark class

Visit: http://pear.php.net/ Search benchmark

(1 ) DOS command to install Benchmark tool class
Enter the following command
>pear install Benchmark-1.2.7




For example: C:Program Filesphp5php- 5.2.6>pear install Benchmark-1.2.7
After successful installation, directly access the PEAR directory, such as C:Program Filesphp5php-5.2.6PEAR

(2) Directly download the Benchmark tool file

Download address: http://pear.php.net/package/Benchmark/download
Benchmark: http://download.pear.php.net/package/Benchmark-1.2.7 .tgz

Download and decompress directly and store it in the PEAR directory, such as C:Program Filesphp5php-5.2.6PEAR

Here we only discuss PEAR installation, and take the Benchmark toolkit as an example to discuss how to use PEAR to download and Install tool packages. The next issue will discuss how to use the Benchmark tool class breakpoint debugging to obtain the execution time of the code and the average time of function execution.

Other instructions

What is CPAN?
CPAN is a huge PERL extension module warehouse. The application modules you write can be placed in the appropriate category directory under CPAN, and other people can easily reuse them. Of course, when you write application modules You also need to abide by the guidelines

References

PEAR http://pear.php.net/
PEAR Introduction: Use PEAR to write your next php program

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