Using Ajax, how do I search a "Name" field, contained in a database and display the results on the page, upon a user entering a name inside a text box?
Something like this might give you a good idea; http://www.w3schools.com/php/php_ajax_livesearch.asp
it uses uses an XML datasource rather than PHP. However, you could just replace that with your source assuming you know how to do some basic database searching operations in PHP.