wget https://sourceforge.net/projects/mcrypt/files/Libmcrypt/2.5.8/libmcrypt-2.5.8.tar.gz
参考网址https://blog.csdn.net/nianyixiaotian/article/details/82706927
下载php
wget http://cn2.php.net/distributions/php-5.6.27.tar.gz
编译：
./configure \
--prefix=/usr/local/php5.6.27 --enable-fpm \
--with-zlib --enable-zip --enable-mbstring --with-mcrypt --with-mysql \
--with-mysqli --with-pdo-mysql --with-gd --with-jpeg-dir --with-png-dir \
--with-freetype-dir --with-curl --with-openssl --with-mhash --enable-bcmath \
--enable-opcache