一、安装PHP所需的lib库（基础库）：

　　1、yum install zlib-devel libxml2-devel libjpey-devel libjpeg-turbo-devel libiconv-devel -y

　　2、yum install freetype-devel libpng-devel gd-devel libcurl-devel libxslt-devel libxslt-devel libxslt-devel -y

　　3、安装yum源无法安装的libiconv库

mkdir -p /home/oldboy/tools/

cd /home/oldboy/tools/

wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz

tar zxf libiconv-1.14.tar.gz

cd libiconv-1.14

./configure --prefix=/usr/local/libiconv

make

make install

cd ../

二、PHP相关扩展库安装

　　1、wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo

　　2、yum -y install libmcrypt-devel

　　3、yum -y install mhash

　　4、yum -y install mcrypt　　#加密扩展库...

　　5、rpm -qa libmcrypt-devel mhash mcrypt