找不到PHP Error html错误：500

Question

这是我的第一个php页面，我无法找到错误。

请帮帮我。

错误：

  

PHP Parse错误：语法错误，意外的'echo'（T_ECHO）in   第17行的/var/www/html/login.php

代码：

<?php
    $servername = "localhost";
    $username = "sao";
    $passwort = "12345";
    $dbName = "sao";
    $user_username = $_POST["usernamePost"];
    $user_password = $_POST["passwordPost"];
    $conn = new mysqli($servername, $username, $passwort, $dbName);
    if(!$conn){
        die("Connection Failed. ". mysqli_connect_error()); 
    }
    $sql = "SELECT password FROM users WHERE username = '".$user_username."' ";
    $result = mysqli_query($conn ,$sql);
    if(mysqli_num_rows($result) > 0){
        while($row = mysqli_fetch_assoc($result)){  
            if($row['password'] == $user_password{          
                echo "login erfolgreich";
            }else{  
                echo "password falsch"; 
            }
        }
    }else{
        echo "user nicht gefunden";
    }
?>

感谢您帮助我。

抱歉我的英文不好！