What is pear in php

PEAR is PHP Extension and Application Repository, which is a code repository for PHP extensions and applications.

Why use PEAR?

PHP is a very excellent scripting language, concise and efficient. With the release of 4.0, more and more people are using it to develop dynamic websites. It can be said that PHP It has become one of the best INTERNET development languages. Especially for those website developers who need to be able to develop small and medium-sized commercial applications quickly and efficiently, PHP is their preferred language.

However, with the increasing number of PHP applications, there is a lack of unified standards and effective management for these applications. (Recommended learning: PHP Programming from entry to proficiency)

Therefore, it is difficult for the PHP community to share each other's code and applications as conveniently as people in the PERL community, because PHP lacks the ability to do so like CPAN A unified code base to classify and manage application code modules (anyone familiar with PERL knows that CPAN is a huge PERL extension module warehouse. The written application modules can be placed under the appropriate classification directory under CPAN, and others It can be easily reused. Of course, you also need to abide by the guidelines when writing application modules.)

For this reason, PEAR came into being, and starting from 4.04, it is distributed along with the PHP core .

What benefits can PEAR bring to me?

1. As mentioned above, PEAR manages the PEAR application code library according to certain categories. Your PEAR code can be organized into appropriate directories, and other people can easily Retrieve and share your results.

2.PEAR is not just a code repository, it is also a standard. Using this standard to write your PHP code will enhance the readability and reusability of your program and reduce errors. probability.

3.PEAR builds a framework for you by providing 2 classes to implement functions such as destructors and error catching. You can use these functions through inheritance.

In addition, we must also pay attention to PEAR's PHP library code. PEAR's PHP library code is often considered the best-designed and cleanest library currently available.

PEAR::DB is one of the most popular packages. This package is a database abstraction library created by the PEAR project. Bakken is working hard to port its main classes and functions to C extensions so that the package has the best performance.

There is no doubt that this new project will become one of the most important components of PHP in the future. It allows developers to easily share code through the PEAR website, allowing users to easily download and install extensions. PHP code base.

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