You can access phpMyAdmin after creating ssh tunnel.
ex.) create ssh tunnel
$ ssh ec2-user@{ipaddress} -i {ssh-key-file.pem} -N -L 8080:localhost:80
http://localhost:8080/phpMyAdmin

For phpMyAdmin please refer to phpMyAdmin User Guide
You can access phpMyAdmin after creating ssh tunnel.
ex.) create ssh tunnel
$ ssh ec2-user@{ipaddress} -i {ssh-key-file.pem} -N -L 8080:localhost:80
http://localhost:8080/phpMyAdmin
For phpMyAdmin please refer to phpMyAdmin User Guide