PHP code not working

[cracked]

<?

$im = ImageCreate(100,100);
for ($y = 0; $y <= 100; $y++) {
for ($x = 0; $x <= 100; $x++) {
$c1 = rand(1, 255);
$c2 = rand(1, 255);
$c3 = rand(1, 255);
$col = ImageColorAllocate($im, $c1, $c2, $c3);
ImageSetPixel ($im, $x, $y, $col);
}
}
ImagePNG ($im);

?>

its supposed to draw a 100x100 image and fill it with each pixel being a different, randomly generated color. but when i run it it gives you this the first few lines seem to be working but the rest is all the same color. this code is very simple and i can not for the life of me figure out why it isnt working. its nothing important, i was just screwing around, but i would like to know what im doing wrong. anybody see the problem?

thanks!

EDIT: i checked and it is only coloring 252 of the pixels and then leaving the rest the same color if that helps any...

[golfcart]

I'm no guru and the code looks good. I'm just curious as to what happens if you swap x and y in the "for" statements.

[cracked]

tried it, all that does is make the couple rows that are working be vertical instead of horizontal. this is really starting to bug me bc i cant find any problems at all with the code.

[golfcart]

That's what I figured, but it was worth a shot