Я пытаюсь выполнить некоторые проверки в форме регистрации пользователя, используя HTML и PHP. Я попытался добавить один, который проверяет длину символов имени пользователя, который был введен. Когда я запускаю скрипт, я сталкиваюсь с ошибкой правильного URL: http://localhost:8888/PRCO304/signup.php?error=invalidlengthuname=ttttttt, однако я не получаю сообщение html, которое должно быть возвращено пользователю на странице регистрации. php. `Что должно быть: " Имя пользователя должно содержать не менее 8 символов! "
scripts / signup-script. php:
<?php
// Checking whether the user got to this page by clicking the proper signup button.
if (isset($_POST['signup-submit'])) {
require 'db.php';
$firstName = $_POST['first-name'];
$lastName = $_POST['last-name'];
$username = $_POST['username'];
$email = $_POST['email'];
$password = $_POST['pwd'];
$passwordRepeat = $_POST['pwd-repeat'];
// We check for any empty inputs.
if (empty($firstName) || empty($lastName) || empty($username) || empty($email) || empty($password) || empty($passwordRepeat)) {
header("Location: ../signup.php?error=emptyfields&uname=".$username."&mail=".$email);
exit();
}
// We check for an invalid username AND invalid e-mail.
else if (!preg_match("/^[a-zA-Z0-9]*$/", $username) && !filter_var($email, FILTER_VALIDATE_EMAIL)) {
header("Location: ../signup.php?error=invalidunamemail");
exit();
}
// We check for an invalid username. In this case ONLY letters and numbers.
else if (!preg_match("/^[a-zA-Z0-9]*$/", $username)) {
header("Location: ../signup.php?error=invaliduname&mail=".$email);
exit();
}
// We check for minimum amount of characters in username.
else if (strlen($username <= 7)) {
header("Location: ../signup.php?error=invalidlengthuname=".$username);
exit();
}
// We check for an invalid e-mail.
else if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
header("Location: ../signup.php?error=invalidmail&uname=".$username);
exit();
}
// We check if the repeated password is NOT the same.
else if ($password !== $passwordRepeat) {
header("Location: ../signup.php?error=passwordcheck&uname=".$username."&mail=".$email);
exit();
}
else {
$sql = "SELECT username FROM student WHERE username = ?;";
$stmt = mysqli_stmt_init($conn);
if (!mysqli_stmt_prepare($stmt, $sql)) {
// If there is an error we send the user back to the signup page.
header("Location: ../signup.php?error=sqlerror");
exit();
}
else {
mysqli_stmt_bind_param($stmt, "s", $username);
// Then we execute the prepared statement and send it to the database!
mysqli_stmt_execute($stmt);
// Then we store the result from the statement.
mysqli_stmt_store_result($stmt);
// Then we get the number of result we received from our statement. This tells us whether the username already exists or not!
$resultCount = mysqli_stmt_num_rows($stmt);
// Then we close the prepared statement!
mysqli_stmt_close($stmt);
// Here we check if the username exists.
if ($resultCount > 0) {
header("Location: ../signup.php?error=usertaken&mail=".$email);
exit();
}
else {
$sql = "INSERT INTO student (firstName, lastName, username, email, pwd) VALUES (?, ?, ?, ?, ?);";
// Here we initialize a new statement using the connection from the db.php file.
$stmt = mysqli_stmt_init($conn);
// Then we prepare our SQL statement AND check if there are any errors with it.
if (!mysqli_stmt_prepare($stmt, $sql)) {
// If there is an error we send the user back to the signup page.
header("Location: ../signup.php?error=sqlerror");
exit();
}
else {
// If there is no error then we continue the script!
$hashedPwd = password_hash($password, PASSWORD_DEFAULT);
mysqli_stmt_bind_param($stmt, "sssss", $firstName, $lastName, $username, $email, $hashedPwd);
mysqli_stmt_execute($stmt);
header("Location: ../signup.php?signup=success");
exit();
}
}
}
}
mysqli_stmt_close($stmt);
mysqli_close($conn);
}
else {
// If the user tries to access this page an inproper way, we send them back to the signup page.
header("Location: ../signup.php");
exit();
}
регистрация. php:
<?php
// The index homepage includes the header
require 'header.php';
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Homepage</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<meta charset="utf-8">
<!-- CSS STYLING -->
<link href="./style.css" type="text/css" rel="stylesheet">
</head>
<body>
<!-- The start of my Foldy Grids -->
<section id="content">
<div class="container">
<section id="grid" class="clearfix">
<div class="cf show-grid">
<div class="row">
<div class="grid-1">grid-1</div>
<div class="grid-4">
<?php
// Here we create an error messages if the user made an error trying to sign up.
if (isset($_GET["error"])) {
if ($_GET["error"] == "emptyfields") {
echo '<p class="signuperror">Fill in all fields!</p>';
}
else if ($_GET["error"] == "invalidunamedmail") {
echo '<p class="signuperror">Invalid username and email!</p>';
}
else if ($_GET["error"] == "invaliduname") {
echo '<p class="signuperror">Invalid username!</p>';
}
else if ($_GET["error"] == "invalidmail") {
echo '<p class="signuperror">Invalid email!</p>';
}
else if ($_GET["error"] == "passwordcheck") {
echo '<p class="signuperror">Your passwords do not match!</p>';
}
else if ($_GET["error"] == "usertaken") {
echo '<p class="signuperror">Username is already taken!</p>';
}
else if ($_GET["error"] == "invalidlengthuname") {
echo '<p class="signuperror">Username must be at least 8 characters long!</p>';
}
}
// Here we create a success message if the new user was created.
else if (isset($_GET["signup"])) {
if ($_GET["signup"] == "success") {
echo '<p class="signupsuccess">Signup successful!</p>';
}
}
?>
<form action="scripts/signup-script.php" method="post">
<div class="signupContainer">
<h1>Sign Up</h1>
<p>Please fill in this form to create an account.</p>
<hr>
<?php
if (!empty($_GET["first-name"])) {
echo '<label for="first-name"><b>First Name</b></label>
<input type="text" placeholder="First Name" name="first-name" value="'.$_GET["first-name"].'">';
} else {
echo '<label for="first-name"><b>First Name</b></label>
<input type="text" placeholder="First Name" name="first-name">';
}
if (!empty($_GET["last-name"])) {
echo '<label for="last-name"><b>Last Name</b></label>
<input type="text" placeholder="Last Name" name="last-name" value="'.$_GET["last-name"].'">';
} else {
echo '<label for="last-name"><b>Last Name</b></label>
<input type="text" placeholder="Please Enter Last Name" name="last-name">';
}
if (!empty($_GET["username"])) {
echo '<label for="username"><b>Username</b></label>
<input type="text" placeholder="Username" name="username" value="'.$_GET["username"].'">';
} else{
echo '<label for="username"><b>Username</b></label>
<input type="text" placeholder="Username" name="username">';
}
if (!empty($_GET["email"])) {
echo '<label for="email"><b>Email</b></label>
<input type="text" placeholder="Email" name="email" value="'.$_GET["email"].'">';
} else {
echo '<label for="email"><b>Email</b></label>
<input type="text" placeholder="Email" name="email">';
}
?>
<label for="pwd"><b>Password</b></label>
<input type="password" placeholder="Password" name="pwd">
<label for="pwd-repeat"><b>Repeat Password</b></label>
<input type="password" placeholder="Repeat Password" name="pwd-repeat">
<label>
<input type="checkbox" checked="checked" name="remember"> Remember me
</label>
<p>By creating an account you agree to our <a href="#">Terms & Privacy</a>.</p>
<div class="clearfix">
<button type="submit" class="signupBtn" name="signup-submit">Sign Up</button>
</div>
</div>
</form>
</div>
<div class="grid-1">grid-1</div>
</div>
</div>
</section>
</div>
</section>
<!-- The end of my Foldy Grids above -->
</body>
</html>
<?php
require 'footer.php';
?>