Nick/password check code

// Sets nick and pass variables with input from POST request
        $nick = htmlspecialchars($_POST["username"]);
        $pass = $_POST["pass"];

        // Prepares and executes query to retrieve user information, stores return in $userDataReturnArr
        $userDataQuery = $dbh->prepare("SELECT NICK,PASS,UID FROM :tblName WHERE NICK = :nick");
        $userDataQuery->bindParam(":tblName", $userDbTblName, PDO::PARAM_STR);
        $userDataQuery->bindParam(":nick", $nick, PDO::PARAM_STR);
        $userDataQuery->execute();
        $userDataReturnArr = $userDataQuery->fetch();

        // This function always returns false, from the look of it
        if (password_verify($pass, $userDataReturnArr[1])) {
            // Returned pass and nick matched input pass and nick
            // Login user and send to index.php
            session_start();

            // Sets session variables
            $_SESSION["user"] = $nick;
            $_SESSION["uid"] = $userDataReturnArr[2];

            header("Location: index.php");
        } else {
            echo "\$userDbTblName: ".$userDbTblName."<br>";
            echo "\$nick: ".$nick."<br>";
            echo "\$pass: ".$pass."<br>";
            echo "\$userDataReturnArr[0]: ".$userDataReturnArr[0]."<br>";
            echo "\$userDataReturnArr: ".var_dump($userDataReturnArr)."<br>";
            echo "PHP Version: ".phpversion();
            // Returned pass and nick did not match input pass and nick
            header("Location: loginFailed.php?error=nomatch");
        }