[Lesane]

I did tested it on 2.3.2 but it should not give you a completely blank page even if it isn't working. But 2.3.0 does have a different line so try again:

(redo last one)

Open admin/functions.php and find:

PHP Code:

$bbcode = preg_replace("/\[img\](\r\n|\r|\n)*((http|https):\/\/([^;<>\(\)\"".iif($allowdynimg,"","!\*\?\&")."]+)|[a-z0-9\/\\\._\- ]+)\[\/img\]/siU", "<img src=\"\\2\" border=\"0\" alt=\"\">", $bbcode); 


Replace it with:

PHP Code:

if($bbuserinfo[userid]==0) { 
      $bbcode = preg_replace("|\[img\](.*)\[/img\]|i", "<a href=\"http://www.url.com/forums/register.php?s=&action=signup\"><img src=\"http://www.url.com/forums/images/registerpic.jpg\" border=\"0\" alt=\"\"></a>", $bbcode);
      } else { 
      $bbcode = preg_replace("/\[img\](\r\n|\r|\n)*((http|https):\/\/([^;<>\(\)\"".iif($allowdynimg,"","!\*\?\&")."]+)|[a-z0-9\/\\\._\- ]+)\[\/img\]/siU", "<img src=\"\\2\" border=\"0\" alt=\"\">", $bbcode);
    } 


If the code is not working then post your replacement code with the replacement image url.