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
报错:
编译mcrypt时，报错：You need at least libmhash 0.8.15
执行 ./configure 编译源码，报错如下：
checking whether mhash >= 0.8.15... no
configure: error: "You need at least libmhash 0.8.15 to compile this program. http://mhash.sf.net/"
-
ln -s /usr/local/lib/libmhash.a /usr/lib/libmhash.a
-
ln -s /usr/local/lib/libmhash.la /usr/lib/libmhash.la
-
ln -s /usr/local/lib/libmhash.so /usr/lib/libmhash.so
-
ln -s /usr/local/lib/libmhash.so.2 /usr/lib/libmhash.so.2
-
ln -s /usr/local/lib/libmhash.so.2.0.1 /usr/lib/libmhash.so.2.0.1
一通上面的操作之后，还是不行。
打开/etc/ld.so.conf，在文件之后，添加一行： /usr/local/lib
然后，执行 ldconfig ，重新编译即可
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
---------------
<?php
echo phpinfo();
?>