SQLSTATE[HY000] [2005]
1. php版本太低了
使用 php -v 查看PHP版本，若是低于5.6，卸载装php7
yum remove php* php-common // 删除已安装的PHP版本 rpm -Uvh
https://mirror.webtatic.com/yum/el7/epel-release.rpm ##CentOs 7.X //运行yum install
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
yum install php70w-fpm //安装PHP FPM
安装php7所有扩展
yum install php70w.x86_64 php70w-bcmath.x86_64 php70w-cli.x86_64 php70w-common.x86_64 php70w-dba.x86_64 php70w-devel.x86_64 php70w-embedded.x86_64 php70w-enchant.x86_64 php70w-fpm.x86_64 php70w-gd.x86_64 php70w-imap.x86_64 php70w-ldap.x86_64 php70w-mbstring.x86_64 php70w-mcrypt.x86_64 php70w-mysqlnd.x86_64 php70w-odbc.x86_64 php70w-opcache.x86_64 php70w-pdo.x86_64 php70w-pdo_dblib.x86_64 php70w-pear.noarch php70w-pecl-apcu.x86_64 php70w-pecl-apcu-devel.x86_64 php70w-pecl-imagick.x86_64 php70w-pecl-imagick-devel.x86_64 php70w-pecl-mongodb.x86_64 php70w-pecl-redis.x86_64 php70w-pecl-xdebug.x86_64 php70w-pgsql.x86_64 php70w-xml.x86_64 php70w-xmlrpc.x86_64 nginx php70w-intl -y
php7所有扩展
yum install php70w.x86_64 php70w-bcmath.x86_64 php70w-cli.x86_64 php70w-common.x86_64 php70w-dba.x86_64 php70w-devel.x86_64 php70w-embedded.x86_64 php70w-enchant.x86_64 php70w-fpm.x86_64 php70w-gd.x86_64 php70w-imap.x86_64 php70w-ldap.x86_64 php70w-mbstring.x86_64 php70w-mcrypt.x86_64 php70w-mysqlnd.x86_64 php70w-odbc.x86_64 php70w-opcache.x86_64 php70w-pdo.x86_64 php70w-pdo_dblib.x86_64 php70w-pear.noarch php70w-pecl-apcu.x86_64 php70w-pecl-apcu-devel.x86_64 php70w-pecl-imagick.x86_64 php70w-pecl-imagick-devel.x86_64 php70w-pecl-mongodb.x86_64 php70w-pecl-redis.x86_64 php70w-pecl-xdebug.x86_64 php70w-pgsql.x86_64 php70w-xml.x86_64 php70w-xmlrpc.x86_64 nginx php70w-intl -y