Zapytanie do bazy Opcje

[Dukov]

Wszystko już jest na dobrej drodze, problem mam jeszcze z zapytaniem do bazy

[PHP] pobierz, plaintext 
<?php
	$avatar;
	if ($_POST['name'] != null){
		$userName = $_POST['name'];	
	}
	if ($_POST['city'] != null ) {
		$userCity = $_POST['city'];
	}
	if ($_POST['desc'] != null){
		$userDesc = $_POST['desc'];
	}
 
	if ($_POST['login'] != '' && $_POST['pass'] != '' && $_POST['mail'] != '') {
 
 
		if (strlen($_POST['login']) > 3 && strlen($_POST['login']) < 10  && strlen($_POST['pass']) > 5 && strlen($_POST['pass']) < 16  ) {
			if (preg_match('/^[a-zA-Z0-9\.\-_]+\@[a-zA-Z0-9\.\-_]+\.[a-z]{2,4}$/D', $_POST['mail']) && preg_match('/^[a-zA-Z0-9\.\-_]/', $_POST['login']) ) {
 
 
				$userLogin = $_POST['login'];
				$userPass = $_POST['pass'];	
				$userMail = $_POST['mail'];
				$len = 20;
				$userID = substr(sha1(rand(1,10000)),0,$len);
				echo $userID;
				if($_FILES['filename']['name'] != ''){
					$avatar = fileReceive();
				}
				reg();
 			}
 			else
 			{
 				header("Location: ../reg.php?reg=badchars");
 			}	
 		}
 		else
 		{
 			header("Location: ../reg.php?reg=shortpole");
 		}
	}
	else
	{
		header("Location: ../reg.php?reg=emptyf");
	}
	function reg(){
		global $userID, $userMail, $userPass, $userLogin, $userDesc, $userCity, $userName, $avatar;
		try {
 			$host = 'localhost';
			$baza = 'user';
			$uzytkownik = 'adamek';
			$haslo = 'aaaaa5';
 
 
    		$conn = new PDO("mysql:host=$host;dbname=$baza", $uzytkownik, $haslo);
			$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
			$stmt = $conn->prepare("SELECT Nazwa AND mail FROM Users WHERE Nazwa = '$userLogin' OR mail = '$userMail'"); 
			$stmt->execute();
			$row = $stmt->fetch();
			if($row['Nazwa'] == 0 && $row['mail'] == 0){
				$stmt = $conn->exec("INSERT INTO Users ( ID ,  Nazwa , Haslo ,  mail , name ,  city ,  image ,  desci ,  activate ,  admin ) VALUES ('$userID','$userLogin', '$userPass', '$userMail', '$userName', '$userCity, $avatar', '$userDesc', 0 , 0 "); 
 
 				echo "ok";
				#$sendMail();
			}
 
			else{
				header("Location: ../reg.php?reg=userexists");
			}
   		}
   		catch(PDOException $e)
    	{
   	 		echo "duppppp";
    	}
	}
 
 
 
 
	function fileReceive(){
		$max_size = 1024*1024;
	if (is_uploaded_file($_FILES['filename']['tmp_name'])) {
    	if ($_FILES['filename']['size'] > $max_size) {
        	echo 'Błąd! Plik jest za duży!';
    	} 
    	else {
        	echo 'Odebrano plik. Początkowa nazwa: '.$_FILES['filename']['name'];
        	echo '<br/>';
        		if (isset($_FILES['filename']['type'])) {
            		echo 'Typ: '.$_FILES['filename']['type'].'<br/>';
        		}
       	 	$strExt = substr( $_FILES['filename']['name'], strrpos( $_FILES['filename']['name'], '.' ) + 1 );
       	 	echo "Rozszerzenie: ". $strExt;
       	 	$len = 20;
       	 	$randstring =  substr(sha1(rand(1,10000)),0,$len).".jpg";
       	 	echo $randstring;
       	 	echo $_FILES['filename']['name'];
 
        if ($strExt == 'jpg' || 'JPG' || 'jpeg' || 'JPEG'){
        	move_uploaded_file($_FILES['filename']['tmp_name'],
                	$_SERVER['DOCUMENT_ROOT'].'/avatars/'.$_FILES['filename']['name']);
 
        }	
    	else{ 
    		echo "niy!!";}
    }
} else {
   echo 'Błąd przy przesyłaniu danych!';
}
 
 	rename('../avatars/'.$_FILES['filename']['name'], "../avatars/". $randstring);
 	return $randstring;
	} 
 
 
 
function sendMail(){
	ob_start();
	$addressee = 'ajjambor912@gmail.com'; 	
	@$email = $_POST['email'];
 
	@$content = 'Name '.$_POST['username'].'  Phone: '.$_POST['userphone'].' Content: '.$_POST['message'];
 
	$header = 	"From: ".$_POST['email']." \nContent-Type:".
			' text/plain;charset="iso-8859-2"'.
			"\nContent-Transfer-Encoding: 8bit";
	if (mail($addressee, 'Message from NAhandyman: ', $content , $header))
 
			header('Location:index.php?send=true');
	else 
			header('Location:index.php?send=false');
}
 ?>
[PHP] pobierz, plaintext 

Tutaj jest błąd

[PHP] pobierz, plaintext 
$stmt = $conn->exec("INSERT INTO Users ( ID ,  Nazwa , Haslo ,  mail , name ,  city ,  image ,  desci ,  activate ,  admin ) VALUES ('$userID','$userLogin', '$userPass', '$userMail', '$userName', '$userCity, $avatar', '$userDesc', 0 , 0 "); 
[PHP] pobierz, plaintext 

Skąd wiem? Bo jak wykomentuje to skrypt leci do kolejnej lini i mam wyświetla się ok, z echa. Jeśli skasuje komentarz to przechodzi do instrukcji catch i z echa wyświetla się duppp.