Max width or height for image upload

[merylvingien]

Hi Fellas, having a bit of a brain freeze here, i am trying to set a max width or height for a uploaded image, but my brain has frozen, maybe its the cold weather lol

 

list($width,$height)=getimagesize($uploadedfile);


$newwidth=250;
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);

 

basicly i want to find the biggest size of an image, beit width or height then set that size to 250...

 

Any pointers here?