Home Backend Development PHP Problem How to apply extensions in php

How to apply extensions in php

Sep 29, 2019 am 11:59 AM
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PHP 扩展库通常称为“php_*.dll”(其中星号代表具体某扩展的名字),位于“PHP\ext”目录下(在 PHP 4 中位于“PHP\extensions”目录下)。

How to apply extensions in php

PHP 发行包中包括了大多数开发者最常用到的扩展库。这些被称为“核心”扩展库。

不过呢,如果用户所需要的功能并没有被任何核心扩展提供,那还是有可能在 PECL 中找到。(推荐学习:PHP视频教程

PHP Extension Community Library(PECL,PHP 扩展社区库)是个 PHP 扩展的储存室,提供了对于所有已知扩展的下载及开发途径的指南。

如果用户开发了一个自己使用的扩展,可以考虑将其发布到 PECL 中以便于其他有相同需求的用户使用。一个很好的副作用是可以得到其他用户的反馈,感谢,错误报告甚至修正/更新。

在 Windows 上有两种加载 PHP 扩展的方式:把扩展编译进 PHP,或者加载 DLL。加载预编译的扩展是更简单更被推荐的方式。

要加载某扩展,需要在系统中有其相对应的“.dll”文件。所有扩展都会由 PHP 小组定期自动编译

用户常常会发现每个 DLL 都有好几个版本:

不同的版本号(至少前两个数字要一致)不同的线程安全性设定不同的处理器体系(x86,x64,...)不同的排错设定其它

请记住用户的扩展设定应该与所使用的 PHP 可执行文件的设定都保持一致。以下脚本可以显示所有 PHP 设定:

phpinfo() call

<?php
phpinfo();
?>
Copy after login

或者在命令行运行:

drive:\\path\to\php\executable\php.exe -i
Copy after login

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