How do i get a transparent background after rotaing a png image with php?

Question

So I have png image and I rotate it but i get a black background.. or if i do the color code ofr white i get white.. I tried doing this..

$trans = imagecol         


        

Answer 1

    $info = pathinfo($pathToImage);
    $name = str_replace("." . $info['extension'], "", $info['basename']);

    $size = getimagesize($pathToImage);



    $type = isset($size['type']) ? $size['type'] : $size[2];

    // Check support of file type
    if (!(imagetypes() & $type)) {
        // Server does not support file type
        return false;
    }

    $source = self::imageCreateFrom($pathToImage, trim($info['extension'])) or notfound();
    $transColor = imagecolorallocatealpha($source, 255, 255, 255, 127);

    // $transparency = imagecolorallocatealpha($source, 0, 0, 0, 127);
    $rotate = imagerotate($source, 360 - $rotate_angle, $transColor);
    //imagealphablending($rotate, false);


    imagesavealpha($rotate, TRUE);
    //imagejpeg($rotate,$pathToThumbs.DIRECTORY_SEPARATOR.$info['basename']);
    self::createImage($rotate, $pathToThumbs, $info['basename'], trim($info['extension']));

    // imagejpeg($rotate);
    imagedestroy($source);
    imagedestroy($rotate);