I think I successfully installed PHP 5.4 on my Mac OS X 10.8.2 via the terminal, but when I double click on wp-admin/install file, I get an error message, which says:
"PHP is not running / WordPress requires that your web server is running PHP. Your server does not have PHP installed, or PHP is turned off."
I've tried everything I can think of. I'd appreciate if someone would spell out the steps I need to take?