PHP下载地址：http://php.net/在这里挑选你想用的版本即可。下载源码包后，解压至本地任意目录（保证读写权限），留待使用。安装PHP前，需要安装编译环境和PHP的相关依赖。下面是相关命令
centos:
yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers gd gd2 gd-devel gd2-devel perl-CPAN pcre-devel
