Alias /phpmyadmin /usr/share/phpmyadmin

<Directory /usr/share/phpmyadmin>
    Options SymLinksIfOwnerMatch
    DirectoryIndex index.php

    <IfModule mod_php7.c>
        AddType application/x-httpd-php .php
        php_flag magic_quotes_gpc Off
        php_flag track_vars On
        php_flag register_globals Off
        php_admin_flag allow_url_fopen On
        php_value include_path .
    </IfModule>
</Directory>