Some highly amusing stuff: This code appears normal and is a way to cut out slices of an image randomly.
<?php
header("Content-Type: image/jpeg");
$width=837;
$height=771;
$origim = imagecreatefromjpeg("theimage.jpeg"); $imagetodisplay=imagecreate($width, $height);
for($i=0;$i<=100;$i++)
{
$xPos=rand(0,$width-9);
$yPos=rand(0,$height-9);
imagecopy($imagetodisplay, $origim, $xPos, $yPos , $xPos, $yPos , 10 , 10);
}
imagejpeg($imagetodisplay);
imagedestroy($imagetodisplay);
imagedestroy($origim);
?>
Try running this however and an omitted detail adds to the fun. Since the first colour that is defined is taken to be the background colour, we have a random colour selected from $origim as the background colour for $imagetodisplay, but this random colour is weighted according to the background image. It was a surprise (I thought the bg would be black) but I am now keeping it as it looks good.
