I'm new to PHP and I have a question, how is it possible to clear the array with errors on page reload? Since at the moment, on reload, the error message does not disappear,and on reload I'm having "Confirm Resubmition" form popping up ,why is this?
I tried, unset($erros),session_destroy(),exit(),but they dont work,am I just using them incorrectly?
This is my php login file
<?php include('server.php') ?>
<!DOCTYPE html>
<html>
<head>
<title>Registration system PHP and MySQL</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="header">
<h2>Register</h2>
</div>
<form method="post" action="register.php">
<?php include('errors.php'); ?>
<div class="input-group">
<label>Email</label>
<input type="email" name="email" value="<?php echo $email; ?>">
</div>
<div class="input-group">
<button type="submit" class="btn" name="reg_user">Register</button>
</div>
<p>
Already a member? <a href="login.php">Sign in</a>
</p>
</form>
</body>
</html>
This is my php server file
<?php
session_start();
// initializing variables
$email = "";
$errors = array();
// connect to the database
$db = mysqli_connect('localhost', 'root', '', 'registration');
// REGISTER USER
if (isset($_POST['reg_user'])) {
// receive all input values from the form
$email = mysqli_real_escape_string($db, $_POST['email']);
// form validation: ensure that the form is correctly filled ...
// by adding (array_push()) corresponding error unto $errors array
if (empty($email)) { array_push($errors, "Email is required"); }
// first check the database to make sure
// a user does not already exist with the same username and/or email
$user_check_query = "SELECT * FROM users WHERE email='$email' LIMIT 1";
$result = mysqli_query($db, $user_check_query);
$user = mysqli_fetch_assoc($result);
if ($user) { // if user exists
if ($user['email'] === $email) {
array_push($errors, "email already exists");
}
}
// Finally, register user if there are no errors in the form
if (count($errors) == 0) {
$query = "INSERT INTO users ( email)
VALUES( '$email')";
mysqli_query($db, $query);
$_SESSION['email'] = $email;
$_SESSION['success'] = "You are now logged in";
header('location: index.php');
}
}
// LOGIN USER
if (isset($_POST['login_user'])) {
$email = mysqli_real_escape_string($db, $_POST['email']);
if (count($errors) == 0) {
$query = "SELECT * FROM users WHERE email='$email'";
$results = mysqli_query($db, $query);
if (mysqli_num_rows($results) == 1) {
$_SESSION['email'] = $email;
$_SESSION['success'] = "You are now logged in";
header('location: index.php');
}else {
array_push($errors, "Wrong username/password combination");
}
}
}
?>
question from:
https://stackoverflow.com/questions/65920140/php-clearing-errors-array-after-reloading-page 与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
