This is a simple example of using the Zillow web service API with PHP and AJAX. Other stuff used: Google Maps API (for autocomplete), Bootstrap (with a Bootswatch theme), Font Awesome, and jQuery BlockUI.
The meat of the PHP is in the Zillow.class.php file if that's what your looking for (I was when I made this), if you are looking for a starting point how to connect to the Zillow web service API and start getting info back right away, check it out.
Everything you need (jQuery, Bootstrap, BlockUI, etc) comes with it, you just need a Google Maps API key and a Zillow Web Service API Key, see below for where to put them
Read more about the Zillow web service API and how to get a key (its free): http://www.zillow.com/howto/api/APIOverview.htm
Google Maps API Key: Line 77 of 'home.php'
Zillow API Key: Line 16 of 'Zillow.class.php'
Simple and maybe a building block to get you started, feel free to contribute to improving it's capabilities. pardamike@gmail.com
Bootstrap 3.3.6
jQuery 2.2.2
jQuery Block UI
Font Awesome 4.5
Bootswatch Flatly Theme
Google Maps
Zillow Web Service API