1st Prepared Statement is not returning results

[mparker1113]

I have followed instructions from a tutorial, but the following will not return results. I know that the query it is performing does have corresonding values. But, the while $stmt->fetch() loop never gets entered.

		$host = "#####";
		$user="####";
		$password="####";
		$database="####";
		
		$mysqli = new mysqli($host, $user, $password, $database);

		if (mysqli_connect_errno()) {
			printf("Connect failed: %s\n", mysqli_connect_error());
			exit();
		}

		/* prepare statement */
		if ($stmt = $mysqli->prepare("SELECT UserID, UserFirstName FROM User where UserEmail = ?"))
		{
			$stmt->bind_param("s",$EmailAddress);

			$stmt->execute();

			/* bind variables to prepared statement */
			$stmt->bind_result($col1,$col2);
			
			
			  /* fetch values */
			while ($stmt->fetch()) 
			{
				printf("results:%s %s\n", $col1, $col2);
			} 
			
			/* close statement */
			$stmt->close();
		}
		/* close connection */
		$mysqli->close();

Thank you for any insight

[mparker1113]

The issue with my code was that i was using double quotation marks in the $stmt->bind_param() call to indicate parameter type ("ss"). Once i switched to single quotes, it is magic