系统环境：centOS6.3

APACHE：httpd-2.4.2

PHP：php-5.3.21

一.安装mcrypt

1.下载Libmcrypt,mhash,mcrypt安装包

libmcrypt-2.5.8.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=87941&package_id=91774&release_id=487459

mhash-0.9.9.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=4286&package_id=4300&release_id=645636

mcrypt-2.6.8.tar.gz

# wget http://sourceforge.net/project/showfiles.php?group_id=87941&package_id=91948&release_id=642101

2 .先安装Libmcrypt

# tar -zxvf libmcrypt-2.5.8.tar.gz

# cd libmcrypt-2.5.8

# /usr/local/php5/bin/phpize #动态编译php模块，使其可以使用configure编译。

# ./configure

# make

# make install     # libmcript默认安装在/usr/local

3.安装mhash

# tar -zxvf mhash-0.9.9.9.tar.gz

# cd mhash-0.9.9.9

# /usr/local/php5/bin/phpize

# ./configure

# make

# make install

4.安装mcrypt

# tar -zxvf mcrypt-2.6.8.tar.gz

# cd mcrypt-2.6.8

# /usr/local/php5/bin/phpize

# ./configure --with-php-config=/usr/local/php5/bin/php-config

# make

# make install

安装完毕,按照编译安装后的提示

mcrypt.so模块会默认保存在 /usr/local/php5/lib/php/extensions/no-debug-zts-20090626/ 目录下

5.加载该模块到php

# vi /usr/local/php5/lib/php.ini

添加如下行：

extension = "/usr/local/php5/lib/php/extensions/no-debug-zts-20090626/mcrypt.so"

重启apache:

/usr/local/apache2/bin/apachectl restart

6.添加phpinfo功能，测试页面

添加以下内容info.php到/usr/local/apache2/htdocs/下,测试php模块是否加载.

# vi  /usr/local/apache2/htdocs/info.php

---------------

echo phpinfo();

?>

---------------

检查80端口是否打开

# lsof -i:80

浏览器输入 http://localhost/info.php

显示有如下测试页面内容, mcrypt.so模块即在PHP下加载成功