This small php bot goes on google server an look for images, searching with the specified keyword. You can find PHP source code on the related class page: Mini Bots Class
<?
// this is the code used
// in this example page:
include("minibots.class.php");
$mb= new Minibots();
$ar = $mb->googleGetImages($_POST['keyword']);
for($i=0;$i<count($ar);$i++) echo "<img src='".$ar[$i]."' />";
?>