Det här svaret är för hash, password_hash() , och password_verify() . För både mysqli och pdo. Länken längst ner har ytterligare länkar och lite språk om salter och liknande.
Det är viktigt att inte använda data från användaren direkt med val och infogar. Bind i stället parametrar och anrop förberedda uttalanden till Undvik sql-injektionsattacker . Lösenord bör aldrig sparas i klartext (klartext) i databaser. Snarare bör de skickas genom enkelriktade hash.
Notera också. Detta visar registrerings-hashning och inloggningsverifiering. Det är inte fullt ut funktionalitet Jag försöker haka på codecanyon för tio spänn ... så att det visar att en omregistrering av en e-postadress (inloggningen) redan finns, gör uppdateringar, märk väl. I så fall kommer infogningen helt enkelt att misslyckas på grund av den unika nyckeln som finns på plats i db. Jag överlåter till dig, läsaren, att göra sökningen och säga "e-post redan registrerad."
Schema
CREATE TABLE `user_accounts2` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`email` varchar(100) NOT NULL,
`password` varchar(255) NOT NULL,
PRIMARY KEY (`id`),
unique key(email) -- that better be the case
) ENGINE=InnoDB;
Efter att ha kört igenom register.php och sparat en användare kan data se ut så här:
select * from user_accounts2;
+----+-----------+--------------------------------------------------------------+
| id | email | password |
+----+-----------+--------------------------------------------------------------+
| 1 | [email protected] | $2y$10$U6.WR.tiOIYNGDWddfT7kevJU8uiz8KAkdxXpda9e1xuplhC/eTJS |
+----+-----------+--------------------------------------------------------------+
mysqli-sektionen först
register.php
<?php
mysqli_report(MYSQLI_REPORT_ALL);
error_reporting(E_ALL); // report all PHP errors
ini_set("display_errors", 1); // display them
session_start();
if(isset($_SESSION['userid'])!="") {
// you are already logged in as session has been set
header("Location: safe.php"); // note that this re-direct will at the top of that page
// ... and there to verify the session state so no tricks can be performed
// no tricks and gimmicks
}
if(isset($_POST['register'])) {
$email = $_POST['email'];
$ctPassword = $_POST['password']; // cleartext password from user
$hp=password_hash($ctPassword,PASSWORD_DEFAULT); // hashed password using cleartext one
// pretend the following is locked in a vault and loaded but hard coded here
$host="yourhostname";
$dbname="dbname";
$user="dbuser";
$pwd="password";
$port=3306; // comes along for the ride so I don't need to look up param order below
// end pretend
try {
$mysqli= new mysqli($host, $user, $pwd, $dbname,$port);
if ($mysqli->connect_error) {
die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error);
}
//echo "I am connected and feel happy.<br/>";
$query = "INSERT INTO user_accounts2(email,password) VALUES (?,?)";
$stmt = $mysqli->prepare($query);
// note the 2 s's below, s is for string
$stmt->bind_param("ss", $email,$hp); // never ever use non-sanitized user supplied data. Bind it
$stmt->execute();
// password is saved as hashed, will be verified on login page with password_verify()
$iLastInsertId=$mysqli->insert_id; // do something special with this (or not)
// redirect to some login page (for now you just sit here)
$stmt->close();
$mysqli->close();
} catch (mysqli_sql_exception $e) {
throw $e;
}
}
?>
<html>
<head>
<title>Register new user</title>
</head>
<body>
<div id="reg-form">
<form method="post">
<table>
<tr>
<td><input type="email" name="email" placeholder="Email" required /></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="register">Register</button></td>
</tr>
<tr>
<td><a href="index.php">Normal Login In Here</a></td>
</tr>
</table>
</form>
</div>
</body>
</html>
login.php
<?php
mysqli_report(MYSQLI_REPORT_ALL);
error_reporting(E_ALL); // report all PHP errors
ini_set("display_errors", 1); // display them
session_start();
if(isset($_SESSION['userid'])!="") {
// you are already logged in as session has been set
header("Location: safe.php"); // note that this re-direct will at the top of that page
// ... and there to verify the session state so no tricks can be performed
// no tricks and gimmicks
}
if(isset($_POST['login'])) {
$email = $_POST['email'];
$ctPassword = $_POST['password']; // cleartext password from user
// pretend the following is locked in a vault and loaded but hard coded here
$host="yourhostname";
$dbname="dbname";
$user="dbuser";
$pwd="password";
$port=3306; // comes along for the ride so I don't need to look up param order below
// end pretend
try {
$mysqli= new mysqli($host, $user, $pwd, $dbname,$port);
if ($mysqli->connect_error) {
die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error);
}
//echo "I am connected and feel happy.<br/>";
$query = "select id,email,password from user_accounts2 where email=?";
$stmt = $mysqli->prepare($query);
// note the "s" below, s is for string
$stmt->bind_param("s", $email); // never ever use non-sanitized user supplied data. Bind it
$stmt->execute();
$result = $stmt->get_result();
if ($row = $result->fetch_array(MYSQLI_ASSOC)) {
$dbHashedPassword=$row['password'];
if (password_verify($ctPassword,$dbHashedPassword)) {
echo "right, userid=";
$_SESSION['userid']=$row['id'];
echo $_SESSION['userid'];
// redirect to safe.php (note safeguards verbiage at top of this file about it)
}
else {
echo "wrong";
// could be overkill here, but in logout.php
// clear the $_SESSION['userid']
}
}
else {
echo 'no such record';
}
// remember, there is no iterating through rows, since there is 1 or 0 (email has a unique key)
// also, hashes are one-way functions in the db. Once you hash and do the insert
// there is pretty much no coming back to cleartext from the db with it. you just VERIFY it
$stmt->close();
$mysqli->close();
} catch (mysqli_sql_exception $e) {
throw $e;
}
}
?>
<html>
<head>
<title>Login</title>
</head>
<body>
<div id="reg-form">
<form method="post">
<table>
<tr>
<td><input type="email" name="email" placeholder="Email" required /></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="login">Login</button></td>
</tr>
</table>
</form>
</div>
</body>
</html>
pdo-avsnittet nedan
När jag har tid, förmodligen imorgon, men för nu hänvisar jag dig till detta mitt svar .