PHP无法在OS X Server中运行

I have a server running OS X 10.8.2. I wanted to install PhpMyAdmin, so I have installed MySQL and PHP (through MacPorts) too. Then I put the PhpMyAdmin folder in the root of my webserver, but when I surf to http://SERVERADDRESS/PhpMyAdmin on any web browser on any device I get the source code of the index.php file instead of the page loaded (see screenshot). Can you help me please?

Screenshot

First, open terminal. In it, write:

sudo nano /etc/apache2/httpd.conf

Find the row with

#LoadModule php5_module libexec/apache2/libphp5.so

and remove the comment from the beginning of the line (remove the #). Hit Ctrl+O and then Control+X to save and quit.

Then restart apache:

sudo apachectl restart

Then try and reload phpmyadmin.