I have searched for a long time on this topic and have had no results. Here is my code...
<?php
session_start();
if (isset($_SESSION["status"]) && $_SESSION["status"] === true) {
header("location: ../index.php");
exit;
}
require_once "config.php";
$email = $password = "";
$email_err = $password_err = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if (empty(trim($_POST["email"]))) {
$email_err = "Please enter a valid email address. ";
} else {
$email = trim($_POST["email"]);
}
if (empty(trim($_POST["password"]))) {
$password_err = "Please enter a valid password. ";
} else {
$password = trim($_POST["password"]);
}
if (empty($email_err) && empty($password_err)) {
$sql = "SELECT id, email, passsword, key FROM users WHERE email = ?";
if ($stmt = mysqli_prepare($link, $sql)) {
mysqli_stmt_bind_param($stmt, "s", $param_email);
$param_email = $email;
if (mysqli_stmt_execute($stmt)) {
mysqli_stmt_store_result($stmt);
if (mysqli_stmt_num_rows($stmt) == 1) {
mysqli_stmt_bind_result($stmt, $id, $email, $hashed_password, $key);
if (mysqli_stmt_fetch($stmt)) {
if (password_verify($password, $hashed_password)) {
session_start();
$_SESSION["status"] = true;
$_SESSION["id"] = $id;
$_SESSION["email"] = $email;
$_SESSION["key"] = $key;
header("location: ../index.php");
} else {
$password_err = "The password you entered was not valid.";
echo $password_err;
}
}
} else {
$email_err = "No accont was found with that email address.";
echo $email_err;
}
} else {
echo "Oops! Something went wrong. Please try again later.";
}
mysqli_stmt_close($stmt);
}
}
mysqli_close($link);
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="../css/login.css">
<title></title>
</head>
<body>
<div class="login-form">
<h1>Login</h1>
<div class="container">
<form action="" method="post">
<input type="email" name="email" placeholder="Type your email here...">
<input type="password" name="password" placeholder="Type your password here...">
<button type="submit">Login</button>
</form>
</div>
</div>
</body>
</html>
When I run this code and try to login I get nothing. It just reloads the page. I have since added some echo functions in different places to see where it breaks and it seems to break at this if ($stmt = mysqli_prepare($link, $sql)). I added the link after this if statement to echo $stmt and it returns
Notice: Undefined variable: stmt
I modified this code from a tutorial which I have successfully used before but I'm not sure what's different this time. My PHP version is 7.4 and my MySQL is 8.0.19. A connection has been successfully made with the database as I ran the config file separately and it returned true. Can anyone help with this?