具體操作：
一、下載軟件包
1、下載php（版本要與系統安裝的一致）
http://pan.baidu.com/s/1mifTbfE
2、下載libmcrypt（安裝mcrypt需要此軟件包）
http://pan.baidu.com/s/1mifTbfE
3、下載mhash（安裝mcrypt需要此軟件包）
http://pan.baidu.com/s/1mifTbfE
4、下載mcrypt
http://pan.baidu.com/s/1mifTbfE
或者：
wget http:
//downloads
.sourceforge.net
/project/mcrypt/Libmcrypt/2
.5.8
/libmcrypt-2
.5.8.
tar
.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmcrypt%2Ffiles%2FLibmcrypt%2F2.5.8%2F&ts=1430725959&use_mirror=ncu
wget http:
//downloads
.sourceforge.net
/project/mcrypt/MCrypt/2
.6.8
/mcrypt-2
.6.8.
tar
.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmcrypt%2Ffiles%2FMCrypt%2F2.6.8%2F&ts=1430726021&use_mirror=ncu
wget http:
//downloads
.sourceforge.net
/project/mhash/mhash/0
.9.9.9
/mhash-0
.9.9.9.
tar
.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmhash%2Ffiles%2Fmhash%2F0.9.9.9%2F&ts=1430726218&use_mirror=ncu
wget http:
//museum
.php.net
/php5/php-5
.3.3.
tar
.gz
以上軟件包下載之后，上傳到/usr/local/src目錄
二、安裝軟件包
1、安裝libmcrypt
cd /usr/local/src #進入軟件包存放目錄
tar zxvf libmcrypt-2.5.8.tar.gz #解壓
cd libmcrypt-2.5.8 #進入安裝目錄
./configure #配置
make #編譯
make install #安裝
2、安裝mhash
cd /usr/local/src
tar zxvf mhash-0.9.9.9.tar.gz
cd mhash-0.9.9.9
./configure
make
make install
3、安裝mcrypt
cd /usr/local/src
tar zxvf mcrypt-2.6.8.tar.gz
cd mcrypt-2.6.8
ln -s /usr/local/bin/libmcrypt_config /usr/bin/libmcrypt_config #添加軟連接
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH #添加環境變量
./configure
make
make install
三、重新編譯php
注意：
tar
zxf php-5.3.3.
tar
.gz
cd
php-5.3.3
/ext/mcrypt/
/usr/bin/phpize
.
/configure
--with-php-config=
/usr/bin/php-config
make
make
install
echo
'extension=mcrypt.so'
>
/etc/php
.d
/mcrypt
.ini
/etc/init
.d
/httpd
reload
php -m |
grep
'mcrypt'
1、查看系統之前安裝的php編譯參數
/usr/local/php/bin/php -i |grep configure #查看php編譯參數，記錄下編譯參數，后面會用到
2、安裝php
cd /usr/local/src
tar zxvf php-5.3.3.tar.gz
cd php-5.3.3
'./configure' '--prefix=/usr/local/php' '--enable-mbstring=all' '--with-config-file-path=/usr/local/php/etc' '--with-zlib' '--with-MySQL=/usr/local/mysql-5.1.38/' '--with-gd' '--with-mysqli=/usr/local/mysql-5.1.38/bin/mysql_config' '--with-jpeg-dir=/usr' '--with-png-dir=/usr' '--enable-fpm' '--enable-soap' '--with-freetype-dir=/usr/lib64' '--with-iconv=/usr/local' '--with-curl' '--with-mcrypt'
這里可以參考之前的已經安裝完的./configure
#在之前的編譯參數后面增加'--with-mcrypt' 回車
make #編譯
make install #安裝
四、測試mcrypt擴展是否已安裝成功
在網站目錄下新建一個info.php測試頁面，寫上下面代碼，保存
<?php
phpinfo();
?>