To enable PHP 4.x on an installation of Mac OS X Tiger, just follow these 8 simple steps:

1. Launch Terminal which can be found in Applications > Utilities
2. Launch Nano (a simple command line text editor) by entering the following command at the prompt (you will be prompted for your password): sudo nano -w /etc/httpd/httpd.conf
3. Locate the following line by pressing CTRL+W and entering the following text: #LoadModule php4_module
4. Remove the # from the beginning of the line.
5. Locate the following line by pressing CTRL+W and entering the following text: #AddModule mod_php4.c
6. Remove the # from the beginning of the line.
7. Save the file and exit Nano by pressing CTRL+X
8. Finally restart Apache by entering the following command at the prompt: sudo apachectl restart
   

PHP has now been enabled.

Tags: Apache, Apple, Mac OS X, PHP, Tiger