yum 安装 php5.6 和 mysql5.6

rpm -Uvh http://ftp.iij.ad.jp/pub/linux/fedora/epel/6/i386/epel-release-6-8.noarch.rpm;
rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm;
yum list --enablerepo=remi --enablerepo=remi-php56 | grep php;
yum install --enablerepo=remi --enablerepo=remi-php56 php php-mysql php-opcache php-pecl-apcu php-devel php-mbstring php-mcrypt php-mysqlnd php-phpunit-PHPUnit php-pecl-xdebug php-pecl-xhprof php-pdo php-pear php-fpm php-cli php-xml php-bcmath php-process php-gd php-common;
php -v;

rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm;
yum list mysql-community-server;
yum install mysql-community-server;

wget http://dev.mysql.com/get/mysql57-community-release-el6-7.noarch.rpm；
yum localinstall mysql57-community-release-el6-.noarch.rpm; #本地源安装
yum list mysql-community-server; #看到终于是 el6 版本的了
yum repolist enabled | grep "mysql.*-community.*"; #看到 mysql 是 5.7 版本的
vi /etc/yum.repos.d/mysql-community.repo; #修改源，把 5.7 的 enabled=，把 5.6 的 enabled=
yum repolist enabled | grep "mysql.*-community.*"; #看到 mysql 是 5.6 版本的了yum list mysql-community-server;

#看到的是下面这些：
#mysql56-community | 2.5 kB :
#Not using downloaded repomd.xml because it is older than what we have:
# Current : Thu Jun ::
# Downloaded: Thu Jun ::
#Available Packages
#mysql-community-server.i686 5.6.-.el7 mysql56-communityyum clean all; #清缓存
yum list mysql-community-server; 看到是 el6 版本了
yum install mysql-community-server;

mysqladmin -u root password 123456