yum install yum-utils
yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

============================================================================================================================================================================================================
 Package                                          Arch                                       Version                                              Repository                                           Size
============================================================================================================================================================================================================
Installing:
 remi-release                                     noarch                                     7.8-1.el7.remi                                       /remi-release-7                                      28 k
Installing for dependencies:
 epel-release                                     noarch                                     7-13                                                 epel                                                 15 k

Transaction Summary
============================================================================================================================================================================================================

[root@192-168-31-103 ~]# yum repoinfo | grep Repo-filename
Repo-filename: /etc/yum.repos.d/base.repo
Repo-filename: /etc/yum.repos.d/epel.repo
Repo-filename: /etc/yum.repos.d/base.repo
Repo-filename: /etc/yum.repos.d/remi-safe.repo
Repo-filename: /etc/yum.repos.d/base.repo

rpm -ql remi-release

[root@192-168-31-103 /etc/yum.repos.d]# ls 
base.repo  epel.repo.rpmnew   remi-glpi91.repo  remi-glpi93.repo  remi-modular.repo  remi-php70.repo  remi-php72.repo  remi-php74.repo  remi.repo
epel.repo  epel-testing.repo  remi-glpi92.repo  remi-glpi94.repo  remi-php54.repo    remi-php71.repo  remi-php73.repo  remi-php80.repo  remi-safe.repo


cat /etc/yum.repos.d/remi-php74.repo
yum-config-manager --enable remi-php74
cat /etc/yum.repos.d/remi-php74.repo

yum install php php-common php-opcache php-pecl-mcrypt php-cli \
php-gd php-curl php-mysqlnd php-devel php-embedded \
php-mbstring php-pdo php-xml php-fpm php-pecl-memcached \
php-pecl-redis5 php-pecl-mongodb

https://gitee.com/as4k/xdocs/blob/master/xfile/yum_install_php74.txt


[root@192-168-31-103 ~]# php -v
PHP 7.4.13 (cli) (built: Nov 24 2020 10:03:34) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.13, Copyright (c), by Zend Technologies

/etc/php-fpm.d/www.conf
...
user = nginx
...
group = nginx
...
listen = /run/php-fpm/www.sock
...
listen.owner = nginx
listen.group = nginx


systemctl status php-fpm


chown -R root:nginx /var/lib/php


参考nginx conf
=============
server {

    # . . . other code

    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_pass unix:/run/php-fpm/www.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

[root@192-168-31-100 /etc/yum.repos.d]# fgrep [ remi*
remi-glpi91.repo:[remi-glpi91]
remi-glpi92.repo:[remi-glpi92]
remi-glpi93.repo:[remi-glpi93]
remi-glpi94.repo:[remi-glpi94]
remi-modular.repo:[remi-modular]
remi-modular.repo:[remi-modular-test]
remi-php54.repo:[remi-php54]
remi-php70.repo:[remi-php70]
remi-php70.repo:[remi-php70-debuginfo]
remi-php70.repo:[remi-php70-test]
remi-php70.repo:[remi-php70-test-debuginfo]
remi-php71.repo:[remi-php71]
remi-php71.repo:[remi-php71-debuginfo]
remi-php71.repo:[remi-php71-test]
remi-php71.repo:[remi-php71-test-debuginfo]
remi-php72.repo:[remi-php72]
remi-php72.repo:[remi-php72-debuginfo]
remi-php72.repo:[remi-php72-test]
remi-php72.repo:[remi-php72-test-debuginfo]
remi-php73.repo:[remi-php73]
remi-php73.repo:[remi-php73-debuginfo]
remi-php73.repo:[remi-php73-test]
remi-php73.repo:[remi-php73-test-debuginfo]
remi-php74.repo:[remi-php74]
remi-php74.repo:[remi-php74-debuginfo]
remi-php74.repo:[remi-php74-test]
remi-php74.repo:[remi-php74-test-debuginfo]
remi-php80.repo:[remi-php80]
remi-php80.repo:[remi-php80-debuginfo]
remi-php80.repo:[remi-php80-test]
remi-php80.repo:[remi-php80-test-debuginfo]
remi.repo:[remi]
remi.repo:[remi-php55]
remi.repo:[remi-php56]
remi.repo:[remi-test]
remi.repo:[remi-debuginfo]
remi.repo:[remi-php55-debuginfo]
remi.repo:[remi-php56-debuginfo]
remi.repo:[remi-test-debuginfo]
remi-safe.repo:[remi-safe]
remi-safe.repo:[remi-safe-debuginfo]

https://linuxize.com/post/install-php-7-on-centos-7/
https://mirrors.tuna.tsinghua.edu.cn/remi/enterprise/7/php74/x86_64/