FPDF error: [Error] https://kythuatdienviet.com/wp-content/uploads/2015/11/cam-bien-sieu-am-italy-1.jpg Missing or Please turn on "allow_url_fopen" on your server to allow insert images in PDF Document, more info here: http://stackoverflow.com/questions/3694240/add-allow-url-fopen-to-my-php-ini-using-htaccess