{

list($orig_width, $orig_height) = getimagesize($filename);

$width = $orig_width;

$height = $orig_height;

# taller

if ($height > $max_height) {

$width = ($max_height / $height) * $width;

$height = $max_height;

}

# wider

if ($width > $max_width) {

$height = ($max_width / $width) * $height;

$width = $max_width;

}

$image_p = imagecreatetruecolor($width, $height);

imageAlphaBlending($image_p, false);

imageSaveAlpha($image_p, true);

$image = imagecreatefrompng($filename);

imageAlphaBlending($image, false);

imageSaveAlpha($image, true);

imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $orig_width, $orig_height);

return $image_p;