What does PHP mean?

A Server Based Scripting Language usually used to display dynamic content on a web page. This could be data from a MySQL database or from another PHP file.

My knowledge and experience of PHP isn't as advanced as my HTML and CSS skills but I know enough to program database driven web sites such as, for example, the Online Shop on the Michael Storrs Music CD site and the gigs, diary and photo pages on Martha Tilston's site.