sql - How to migrate users from Wordpress to PHP website

one text

I had a wordpress website, and I currently working on a PHP website from scratch.

The question, is that I need that the users from Wordpress, can login in the new PHP website from scratch. So for that. I was thinking that maybe the key is on exporting the database wp_user, and import it into the new database from the PHP website.

I have made that, so now I have the row user_pass, with the password hashed. I need when a user put his password, it matches with the hashed password from user_pass.

I have tried md5($string), but it doesn't match.

How could I get a password, and hash it to check if the password matches? Thank you

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form action="index.php" method="POST">
        <input name="password" type="text">
    </form>
</body>
</html>

<?php
$db = mysqli_connect('localhost', 'root', '', 'testing_wordpress');
    $password = false;
    if(isset($_POST)){
        if(isset($_POST['password'])){
            $password = $_POST['password'];
        }
    }

    if($password != false){
        $password_encrypt = md5($password); // This doesn't match.
        echo $password . "<br>";
        echo $password_encrypt;


        $sql = "SELECT * FROM wptf_users WHERE user_pass = '$password_encrypt'";
        $query = mysqli_query($db, $sql);

        if($query){
            var_dump($query);
        }else {
            echo "Not match";
        }
    }else {
        
    }


?>

Source