Enable phpmyadmin to be used in cakephp

I would appreciate it if someone could help me.

Currently, phpmyadmin is installed on cakephp and
I want to be able to view and change the DB of cakephp.

I searched, but I'm at a loss because I don't have any useful articles.

Just in case, refer to the following article.

1, Download the latest version of phpmyadmin locally
2, Create a directory called phpmyadmin under /var/www/html
3,Change owner to appach chown-Rapache/var/www/html/phpmyadmin
4, Accessed by http://IP address/phpmyadmin/ 5.404 Displaying Errors

It will be

https://www.conoha.jp/conoben/archives/9304

Sorry for the inconvenience, but
I would appreciate your advice.

Currently
as server information ·mysql5.7.10
·linux 3.10
·php7.0.2
·centos 7.2

will be

追Additional
The following in /etc/httpd/conf/httpd.conf is

DocumentRoot"/var/www/html"

That's right.