Insert defaultimage.png Upon Membership Registration?


I have set up a image upload script for members. However I am now trying to insert a defaultimage (defaultimage.png) when people register.

The problem is the code below insers “defaultimagepng” and not “defaultimage.png”. Can anyone advise how I can insert “defaultimage.png”?

Do I need to set up a string for this or is there a different way to do this.

   $firstname = mysql_real_escape_string(trim($_POST['firstname']));
    $surname = mysql_real_escape_string(trim($_POST['surname']));
        $registerEmail = trim($_POST['email']);
		[B]$logo = (defaultimage.png);  [/B]
        $registerPassword = trim($_POST['password']);
        $registerConfirmPassword  = trim($_POST['confirmPassword']);  
$logo = "defaultimage.png";

Strings in php must be placed in quotes. Without quotes you were actually concatenating two non-existent constants - non-existent constants are converted by php to strings while issuing an E_NOTICE error - don’t do such things since this is unreliable and creates confusion - as you can see yourself!