creating png files

Question

I made a function to handle jpg and png files, but i get error when trying to upload a png file.

this is the function:

function createImg ($type, $src, $         


        

Answer 1

Johnny Craig's answer is correct except one thing, it has inverse relationship. 9 - is the most possible compression, and 0 - no compression, so the most possible quality.

if ($type == 'png') {
    $quality = round((100 - $quality) * 0.09);
}