control image dimensions

[zedan_80]

Hallo

How can i control image dimensions to limilt uploads to specific dimensions,

for example if i want the user to upload ONLY images with dimensions < 100 pixel

[crazychris]

use getimagesize() which will return [0]=width and [1]=height

$img=getimagesize($_FILES['uploadefile']['tml_name']);
if (($img[0]>100) or ($img[1]>100)) {
 // fail
} else {
  // ok
}