How to restrict image width or height on upload

Question

I would like manipulate/resize images in a similar way to Pinterest but I am not sure what is the best way to approach it. The goal is to allow a mix of both portrait and la

Answer 1

try with this

       $needheight = 1000;
       $needwidth = 1000;

       $arrtest = getimagesize($upload_image_physical_path);

        $actualwidth = $arrtest[0];
        $actualheight = $arrtest[1];

        if($needwidth > $actualwidth || $needheight > $actualheight){
             //uplaod code  
        }

cheers