centos7安装php环境
yum install epel-release
yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm
yum install yum-utils
yum search php73
yum search php74
yum install php74-php-gd php74-php-pdo php74-php-mbstring php74-php-cli php74-php-fpm php74-php-mysqlnd
systemctl status php74-php-fpm
systemctl start php74-php-fpm
systemctl enable php74-php-fpm