centos系统下使用yum安装php7.4正式版，当前基于WLNMP提供的一键安装包来安装

1、添加epel源
yum install epel-release

|---|--------------------------| | 1 | yum install epel-release |

2、添加WLNMP一键安装包源
rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm

|---|--------------------------------------------------------------------------| | 1 | rpm -ivh http://mirrors.wlnmp.com/centos/wlnmp-release-centos.noarch.rpm |

3、安装php7.4
yum clean all yum install wphp74

|-----|----------------------------------| | 1 2 | yum clean all yum install wphp74 |

启动方式
/etc/init.d/php-fpm74 restart

|---|-------------------------------| | 1 | /etc/init.d/php-fpm74 restart |

4、配置nginx

（1）如果使用WLNMP提供的nginx，只需要在nginx安装后取消include enable-php71.conf;取消注释即可

WLNMP安装nginx方法
yum install wnginx

|---|--------------------| | 1 | yum install wnginx |

（2）如果当前使用的是非WLNMP提供的nginx，只需要在nginx中配置以下内容即可
location ~ [^/]\.php(/|$) { try_files $uri =404; fastcgi_pass unix:/tmp/php-fpm74.sock; fastcgi_index index.php; include fastcgi.conf; }

|---------------|------------------------------------------------------------------------------------------------------------------------------------------------| | 1 2 3 4 5 6 7 | location ~ [^/]\.php(/|$) { try_files $uri =404; fastcgi_pass unix:/tmp/php-fpm74.sock; fastcgi_index index.php; include fastcgi.conf; } |

更多相关内容可参考：https://www.wlnmp.com/