首先安装remi.repo 仓库
参考:
centos yum方式安装PHP74
centos yum方式安装PHP74_yum 安装php74-CSDN博客
yum安装
yum install php73-php-pecl-zip bz2 curl event gd json openssl mysqlnd PDO
yum install php-posix
php73 composer.phar config -g repo.packagist composer PHP Composer
php73 server_channel.php start -d
php73 server_globaldata.php start -d
编辑: config.json