[Bellardia]

Basic functionality

PHP Code:

<?php
$myImage = imagecreatefromjpeg('jpgFile.jpg');
header("Content-type: image/jpeg");
imagejpeg($myImage);
imagedestroy($myImage);
?>

Combine it with other php gd functions. Probably the ones you'll need [ Refrence ]
imagecreate()
imagecopymerge()
imagecreatefrompng() or imagecreatefromgif() or whichever format you're using

Basic idea:
Get each character from the query string, add up each images width to find total image size. If image a = 30pixels, b=200pixels, then ?string=aba would be 260pixels.
Use imagecreate to make a 260pixel image. Take image a copymerge it onto the background image from imagecreate, copymerge image b 30 pixels to the right of that, then copymerge image a again 230 pixels from origin of the background image.

Hope I didn't get too complex..