Online PHP editor | output for uMQjD

<?php $string= "Hello, view this pdf [PDF='hello.pdf'] and then view this PDF [PDF='goodmorning.pdf']"; echo preg_replace("/(.*?)(\[\w{3}=\')(\w+\.\w+)(\'\](.*?)/", "$1 <object data=\"https://myurl.com/media/$3\" class=\"pdf-shortcode-iframe" type=\"application/pdf\"> <iframe class=\"pdf-shortcode-iframe\" src=\"https://docs.google.com/viewer?url=https://myurl.com/media/$3&embedded=true\"></iframe> </object>$5 <object data=\"https://myurl.com/media/$7\" class=\"pdf-shortcode-iframe\" type=\"application/pdf\"> <iframe class=\"pdf-shortcode-iframe\" src=\"https://docs.google.com/viewer? url=https://myurl.com/media/$3&embedded=true"></iframe> </object>", $string);