如何安全地存储用户的密码?
$salt = 'csdnfgksdgojnmfnb';$password = md5($salt.$_POST['password']);$result = mysql_query("SELECT id FROM users WHERE username = '".mysql_real_escape_string($_POST['username'])."' AND password = '$password'");if (mysql_num_rows($result) < 1) { /* Access denied */ echo "The username or password you entered is incorrect.";} else { $_SESSION['id'] = mysql_result($result, 0, 'id'); #header("Location: ./"); echo "Hello $_SESSION[id]!";}
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