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php中什么是pear?

Jun 13, 2016 am 11:18 AM
pearphp

pear全称PHP Extension and Application Repository,即PHP扩展与应用库,是为了创建一个类似于Perl CPAN档案的工具,是一个PHP扩展及应用的代码仓库。

php中什么是pear?

pear(PHP Extension and Application Repository,PHP扩展与应用库),是为了创建一个类似于Perl CPAN档案的工具,Stig S. Bakken在1999年创立了PEAR项目。

PEAR的基本目标是发展成为PHP扩展和库代码的知识库,而这个项目最有雄心的目标则是试图定义一种标准,这种标准将帮助开发者编写可移植、可重用的代码。

Internet上已经有关于该项目的一些文档。例如,一些初始的资料已经可以在PHP正式手册中找到,更多的资料即将加入。

在很大程度上,PEAR还是一项正在进行之中的工作。在未来的几个月内,PEAR安装程序和PEAR网站将有很大的发展。为了在下一个PHP版本中使用PEAR管理数量日益增长的C扩展,以及用PEAR安装程序作为用户把扩展下载和安装到PHP的前端工具,在PHP Core Developer邮件列表上已经有了大量的讨论。

pear能给我带来什么好处?

1、PEAR按照一定的分类来管理PEAR应用代码库,你的PEAR代码可以组织到其中适当的目录中,其他的人可以方便地检索并分享到你的成果。

2、PEAR不仅仅是一个代码仓库,它同时也是一个标准,使用这个标准来书写你的PHP代码,将会增强你的程序的可读性,复用性,减少出错的几率。

3、PEAR通过提供2个类为你搭建了一个框架,实现了诸如析构函数,错误捕获功能,你通过继承就可以使用这些功能。

另外,我们还必须关注PEAR的PHP库代码。PEAR的PHP库代码常常被认为是当前设计最好、最整洁的库。

PEAR::DB是其中最受欢迎的一个包,这个包是PEAR项目创建的一个数据库抽象库。Bakken正在努力,要把它主要的类和函数移植到C扩展上,使得这个包具有最好的性能。

毫无疑问,这个新的项目必将成为未来PHP最重要的组成部分之一,它使得开发者能够方便地通过PEAR网站共享代码,使得用户能够方便地下载和安装扩展、PHP代码库。

更多相关知识,请访问 PHP中文网!!

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