Resize to fix width or length

Ended up doing this

PHP Code:

elseif($size[0] > 1063 && $size[1] > 650)
    {
        $width_diff=(($size[0]*100)/1063);
        
        $height_diff=(($size[1]*100)/650);
        
        if($height_diff<$width_diff)
            {  
                $config2[‘height’] = 650; 
                $width_height_ratio = ($size[1]*100)/$size[0];
                $config2[‘width’] = round((650*100)/$width_height_ratio);
            }
        else 
            {
                $config2[‘width’] = 1063;
                $width_height_ratio = ($size[1]*100)/$size[0];
                $config2[‘height’] = round((1063*$width_height_ratio)/100);
            }    
    }