Microweber\Providers\MediaManager::pixum PHP Method

    public function pixum($width = 150, $height = false)
    {
        $cache_folder = media_base_path() . 'pixum' . DS;
        if ($height) {
            $h = $height;
        } else {
            $h = $width;
        }
        $h = intval($h);
        $w = intval($width);
        if ($h == 0) {
            $h = 1;
        }
        if ($w == 0) {
            $w = 1;
        }
        $extension = '.png';
        $hash = 'pixum-' . $h . 'x' . $w;
        $cachefile = normalize_path($cache_folder . DS . $hash . $extension, false);
        if (!file_exists($cachefile)) {
            $dirname_file = dirname($cachefile);
            if (!is_dir($dirname_file)) {
                mkdir_recursive($dirname_file);
            }
            $img = imagecreatetruecolor($w, $h);
            $white = imagecolorallocatealpha($img, 239, 236, 236, 0);
            imagefill($img, 0, 0, $white);
            imagealphablending($img, false);
            imagesavealpha($img, true);
            imagepng($img, $cachefile);
            imagedestroy($img);
        }
        if (file_exists($cachefile)) {
            $url = media_base_url() . 'pixum/' . $hash . $extension;
        } else {
            $url = $this->app->url_manager->site('api_nosession/pixum_img') . '?width=' . $width . '&height=' . $height;
        }
        return $url;
    }