Password_Verify哈希密码存在问题

Question

您好，我正在尝试使用Unity实施登录系统，但是我的PHP似乎有问题。

我认为我已将问题缩小到错误地从数据库中检索出的哈希值。我怀疑这是问题所在，因为如果我将正确的哈希值硬编码到一个变量中并使用password_verify（）可以正常工作，但是从数据库中检索到的相同哈希值将无法验证。

在此先感谢您的帮助。

这是我的register.php脚本：

<?php

    $conn = mysqli_connect("localhost", "root", "root", "MultiplayerExperience");

    $username = $_POST["usernamePost"];
    $password = $_POST["passwordPost"];

    if(mysqli_connect_errno())
    {
        echo("Connection failed");
        exit();
    }

    $userCheckQuery = "SELECT username FROM players WHERE username = '".$username."';";
    $userCheck = mysqli_query($conn, $userCheckQuery);

    if(mysqli_num_rows($userCheck) > 0)
    {
        echo("User already exists");
        exit();
    }

    $hashedPassword = password_hash(trim($password), PASSWORD_BCRYPT);

    $userInsertionQuery = "INSERT INTO players (username, hash) VALUES ('".$username."', '".$hashedPassword."' );";
    $userInsertion = mysqli_query($conn, $userInsertionQuery) or die("User insertion failed");

    echo("RegistrationSuccess");

?>

Here is my login.php script
<?php

    $conn = mysqli_connect("localhost", "root", "root", "MultiplayerExperience");

    $username = $_POST['usernamePost'];
    $password = $_POST['passwordPost'];

    if(mysqli_connect_errno())
    {
        echo("Connection failed");
        exit();
    }

    $nameCheckQuery = "SELECT username FROM players WHERE username = '".$username."';";
    $nameCheck = mysqli_query($conn, $nameCheckQuery);

    if(mysqli_num_rows($nameCheck) != 1)
    {
        echo("User not found");
        exit();
    }

    $hashFetchQuery = "SELECT hash FROM players WHERE username = '".$username."';";
    $hashFetch = mysqli_query($conn, $hashFetchQuery);

    $correctHash = '$2y$10$qeInE4VYnGiHRiivh/5z8OpX65NrWPYA6/UZTH2HIEGPV6gr9rNZ2';  //Correct hash copied from database
    $incorrectHash = '$2y$10$qeInP4YYnGiHRiivh/5z8OpX63NrWPYO6/UZTH2HIEGPV6gr9rNZ2';    //Incorrect hash for testing

    if(password_verify(trim($password), trim($hashFetch)))
    {
        echo("LoginSuccess");
        exit();
    }

    echo("Incorrect password");


?>

我已经在Google上搜索了几天，关于此事的每条帖子都无法解决我的问题。