我无法安全地验证用户名和密码。在检查数据库中是否存在电子邮件地址后，我检查输入的密码是否与数据库中的密码匹配，但我的密码没有验证。
这是我的user\u login.php文件：

require_once "../include/Constants.php";

$conn = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);

if($_SERVER['REQUEST_METHOD']=='POST')
{
    $username = $_POST['username'];
    $password = $_POST['password'];

    //filter this variable for security

    $password = strip_tags(mysqli_real_escape_string($conn, trim($password)));

    $query = "SELECT * FROM students WHERE s_id = '".$username."' ";
    $tbl = mysqli_query($conn, $query);
    if(mysqli_num_rows($tbl)>0)
    {
        //when email is matched it also need to verify the password
        $row = mysqli_fetch_array($tbl);
        $password_hash = $row['password'];
        if(password_verify($password, $password_hash))
        {
            echo "success";
        }
        else
        {
            echo "failed login"."<br/>";
            echo $password_hash."<br/>";
            echo $password;
        }
    }
    else
    {
        echo "email failed";
    }

由于某些原因，密码和用bcrypt加密的密码不匹配。我找不到我做错了什么。如果您有一些关于解决方案的建议，请提供帮助。谢谢！