This post shows how to setup a standard LAMP stack on CentOS 7.

For the latest version of phpMyAdmin:

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rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*
yum -y install epel-release

For MariaDB:

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yum -y install mariadb-server mariadb
systemctl enable --now mariadb
mysql_secure_installation

For Apache:

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yum -y install httpd
systemctl enable --now httpd

For PHP:

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rpm -Uvh http://rpms.remirepo.net/enterprise/remi-release-7.rpm
yum -y install yum-utils
yum update -y
yum-config-manager --enable remi-php73
yum -y install php php-opcache
systemctl restart httpd

For making PHP work with MySQL:

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yum -y install php-mysqlnd php-pdo
yum -y install php-gd php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-soap curl curl-devel
systemctl restart httpd

For phpMyAdmin:

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yum -y install phpMyAdmin
vim /etc/httpd/conf.d/phpMyAdmin.conf

For remote access to DB:

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# ... snip ...

Alias /phpMyAdmin /usr/share/phpMyAdmin
Alias /phpmyadmin /usr/share/phpMyAdmin

<Directory /usr/share/phpMyAdmin/>
  AddDefaultCharset UTF-8

  <IfModule mod_authz_core.c>
    # Apache 2.4
    # <RequireAny>
    # Require ip 127.0.0.1
    # Require ip ::1
    # </RequireAny>
    Require all granted
  </IfModule>

  <IfModule !mod_authz_core.c>
    # Apache 2.2
    Order Deny,Allow
    Deny from All
    Allow from 127.0.0.1
    Allow from ::1
  </IfModule>
</Directory>

<Directory /usr/share/phpMyAdmin/>
  Options none
  AllowOverride Limit
  Require all granted
</Directory>

# ... snip ...

Finally, you did it!

Happy coding! 🙂