AJAX and PHP

Here is a link to an article on AJAX and PHP.
This is intended to make websites far more dynamic.

In case anyone is wondering why I am using PHP it is because I bought a domain and hosting for £30 for two years. The site advertised Pythin support that I only found out was disabled after I had the domain. The remaining options were Perl or PHP. I found the PHP to not be too painful to use. The site is strictly of local area interest so does not get quite the load that would cause trouble.