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? ??? ?? PHP ???? PDO ? ???? ??? ???? PHP ??????? ??? ????? ??? ??? ? ?????

PDO ? ???? ??? ???? PHP ??????? ??? ????? ??? ??? ? ?????

Dec 11, 2024 am 04:11 AM

How Can I Secure My PHP Application's User Passwords Using PDO and Password Hashing?

PDO? ??? ???? ???? ?? ??

??? ??? ???? ????? ??? ???? ??? ?????. PHP ??? ??? ????? PDO? ???? ??? ???? ?? ?????.

PDO? ???? ?? ??

MD5 ?? ?? ?? ?? ????? ???? ???. ?? ??? ?? ??? ?? ?????? ?????.

  • PHP 5.5 : ??? ????_hash() ??? ?????.
  • PHP 5.3.7 : ???? ?? ?? ? ?? library.
  • ??: phpass ?????? ?????.

?? ?

??? ??:

// Generate a secure hash of the password using password_hash()
$hash = password_hash($password, PASSWORD_DEFAULT);

// Prepare and execute SQL statement with the hashed password
$stmt = $dbh->prepare("INSERT INTO users SET username=?, email=?, password=?");
$stmt->execute([$username, $email, $hash]);

???? ???:

// Use PDO prepared statement to prevent SQL injection attacks
$sql = "SELECT * FROM users WHERE username = ?";
$stmt = $dbh->prepare($sql);
$stmt->execute([$_POST['username']]);

// Retrieve user record and verify password hash using password_verify()
$user = $stmt->fetchObject();
if ($user) {
    if (password_verify($_POST['password'], $user->password)) {
        // Valid login
        // ...
    } else {
        // Invalid password
        // ...
    }
} else {
    // Invalid username
    // ...
}

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