问：我写了一个registration.php（成员reg），它工作正常，但编码并不完美（旧版本）。
整理好新版本，但是单击“注册”按钮后，我会看到完整的空白页。我不再收到此消息：
感谢您的注册！查看您的电子邮件，以获取有关如何激活刚刚注册的帐户的详细信息。”
怎么了 ？
旧版：
<?php
/*
ERROR HANDLING
*/
declare(strict_types=1);
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
include 'config.php';
// check if user is already logged in
if (is_logged() === true) {
die("You are already logged-in! No need to register again!");
}
if ($_SERVER['REQUEST_METHOD'] == "POST")
{
if (isset($_POST["username"]) &&
isset($_POST["password"]) &&
isset($_POST["password_confirmation"]) &&
isset($_POST["email"]) &&
isset($_POST["email_confirmation"]) &&
isset($_POST["first_name"]) &&
isset($_POST["gender"]) &&
isset($_POST["surname"])) {
//TypeCast the INT to STRING on the 1st parameter of sha1 as 1st parameter needs to be a STRING.
$account_activation_code = sha1( (string) mt_rand(5, 30));
$account_activation_link = "http://www.".$site_domain."/".$social_network_name."/activate_account.php?email=".$_POST['email']."&account_activation_code=".$account_activation_code."";
$username = trim(mysqli_real_escape_string($conn, $_POST["username"]));
$password = $_POST["password"];
$password_confirmation = $_POST["password_confirmation"];
$first_name = trim(mysqli_real_escape_string($conn, $_POST["first_name"]));
$surname = trim(mysqli_real_escape_string($conn, $_POST["surname"]));
$gender = trim(mysqli_real_escape_string($conn, $_POST["gender"]));
$email = trim($_POST["email"]);
$email_confirmation = trim($_POST["email_confirmation"]);
$account_activation_status = 0; // 1 = active | 0 = not active
//Hashed Password.
$hashed_password = password_hash($password, PASSWORD_DEFAULT);
//SEE IF BELOW CODE AFTER FOLLOWING WORKS OR NOT AS SUBSTITUTE FUNCTION OVER mysqli_stmt_get_result FUNCTION
//Select Username and Email to check against Mysql DB if they are already registered or not.
$stmt = mysqli_prepare($conn, "SELECT usernames, emails FROM users WHERE usernames = ? OR emails = ?");
mysqli_stmt_bind_param($stmt, 'ss', $username, $email_confirmation);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
// Check if inputted Username is already registered or not.
if ($row['usernames'] == $username) {
$_SESSION['error'] = "That username is already registered.";
// Check if inputted Username is between 8 to 30 characters long or not.
} elseif (strlen($username) < 8 || strlen($username) > 30) {
$_SESSION['error'] = "Username must be between 8 to 30 characters long!";
// Check if inputted Email is already registered or not.
} elseif ($row['emails'] == $email) {
$_SESSION['error'] = "That email is already registered.";
// Check if both inputted EMails match or not.
} elseif ($email != $email_confirmation) {
$_SESSION['error'] = "Emails don't match!";
// Check if inputed Email is valid or not.
} elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$_SESSION['error'] = "Invalid email! Insert your real Email in order for us to email you your account activation details.";
// Check if both inputted Passwords match or not.
} elseif ($password != $password_confirmation) {
$_SESSION['error'] = "Passwords don't match.";
// Check if Password is between 8 to 30 characters long or not.
} elseif (strlen($password) < 8 || strlen($password) > 30) {
$_SESSION['error'] = "Password must be between 6 to 30 characters long!";
} else {
//Insert the user's input into Mysql database using php's sql injection prevention method.
$stmt = mysqli_prepare($conn, "INSERT INTO users(usernames, passwords, emails, first_names, surnames, genders, accounts_activations_codes, accounts_activations) VALUES (?, ?, ?, ?, ?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt, 'sssssssi', $username, $hashed_password, $email, $first_name, $surname, $gender, $account_activation_code, $account_activation_status);
mysqli_stmt_execute($stmt);
//Check if user's registration data was successful submitted or not.
if (mysqli_stmt_insert_id($stmt)) {
echo "<h3 style='text-align:center'>Thank you for your registration!<br /> Check your email for details on how to activate your account you just registered.</h3>";
//Send account activation link by email for user to confirm his email and activate his new account.
$to = $email;
$subject = "Your ".$site_name." account activation!";
$body = nl2br("
===============================\r\n
".$site_name." \r\n
===============================\r\n
From: ".$site_admin_email."\r\n
To: ".$email."\r\n
Subject: Yours ".$subject." account activation \r\n
Message: ".$first_name." ".$surname."\r\n You need to click on following <a href=".$account_activation_link.">link</a> to activate your account by confirming your email address. \r\n");
$headers = "From: " . $site_admin_email . "\r\n";
if (mail($to,$subject,$body,$headers)) {
$_SESSION['error'] = "Registration sucessful! Check your email for further instructions!";
//Clear the Session Error so it can no longer be used.
unset($_SESSION['error']);
unset($_POST);
exit();
//Redirect user to login page after 5 seconds.
header("refresh:5;url=login.php");
}
else
{
$_SESSION['error'] = "Email not sent, please contact website administrator!";
}
}
else
{
$_SESSION['error'] = "There was a problem in trying to register you! Try again some other time.";
}
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title><?php $social_network_name ?> Signup Page</title>
</head>
<body>
<div class ="container">
<?php
// error messages
if (isset($_SESSION['error']) && !empty($_SESSION['error'])) {
echo '<p style="color:red;">'.$_SESSION['error'].'</p>';
}
?>
<form method="post" action="">
<center><h2>Signup Form</h2></center>
<div class="form-group">
<center><label>Username:</label>
<input type="text" placeholder="Enter a unique Username" name="username" required [A-Za-z0-9] value="<?php if(isset($_POST['username'])) { echo htmlentities($_POST['username']); }?>"></center>
</div>
<div class="form-group">
<center><label>Password:</label>
<input type="password" placeholder="Enter a new Password" name="password" required [A-Za-z0-9]></center>
</div>
<div class="form-group">
<center><label>Repeat Password:</label>
<input type="password" placeholder="Repeat a new Password" name="password_confirmation" required [A-Za-z0-9]></center>
</div>
<div class="form-group">
<center><label>First Name:</label>
<input type="text" placeholder="Enter your First Name" name="first_name" required [A-Za-z] value="<?php if(isset($_POST['first_name'])) { echo htmlentities($_POST['first_name']); }?>"></center>
</div>
<div class="form-group">
<center><label>Surname:</label>
<input type="text" placeholder="Enter your Surname" name="surname" required [A-Za-z] value="<?php if(isset($_POST['surname'])) { echo htmlentities($_POST['surname']); }?>"></center>
</div>
<div class="form-group">
<center><label>Gender:</label>
<input type="radio" name="gender" value="male" <?php if(isset($_POST['gender'])) { echo 'checked'; }?> required>Male<input type="radio" name="gender" value="female" <?php if(isset($_POST['gender'])) { echo 'checked'; }?> required>Female</center>
</div>
<div class="form-group">
<center><label>Email:</label>
<input type="email" placeholder="Enter your Email" name="email" required [A-Za-z0-9] value="<?php if(isset($_POST['email'])) { echo htmlentities($_POST['email']); }?>"></center>
</div>
<div class="form-group">
<center><label>Repeat Email:</label>
<input type="email" placeholder="Repeat your Email" name="email_confirmation" required [A-Za-z0-9] value="<?php if(isset($_POST['email_confirmation'])) { echo htmlentities($_POST['email_confirmation']); }?>"></center>
</div>
<center><button type="submit" class="btn btn-default" name="submit">Register!</button></center>
<center><font color="red" size="3"><b>Already have an account ?</b><br><a href="login.php">Login here!</a></font></center>
</form>
</div>
</body>
</html>
新版本有什么问题？
新版本
<?php
/*
ERROR HANDLING
*/
declare(strict_types=1);
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
include 'config.php';
//Step 1: Before registering User account, check if User is already registered or not.
//Check if User is already logged-in or not.
if (is_logged() === true) {
die("You are already logged-in! No need to register again!");
}
if ($_SERVER['REQUEST_METHOD'] == "POST")
{
//Step 2: Check User Submitted Details.
//Check if user made all the required inputs or not.
if (isset($_POST["username"]) &&
isset($_POST["password"]) &&
isset($_POST["password_confirmation"]) &&
isset($_POST["email"]) &&
isset($_POST["email_confirmation"]) &&
isset($_POST["first_name"]) &&
isset($_POST["surname"]) &&
isset($_POST["gender"])) {
//Step 3: Check User details for matches against database. If no matches then validate inputs and register User account.
//Create variables based on user inputs.
$username = trim($_POST["username"]);
$password = $_POST["password"];
$password_confirmation = $_POST["password_confirmation"];
$email = trim($_POST["email"]);
$email_confirmation = trim($_POST["email_confirmation"]);
$first_name = trim($_POST["first_name"]);
$surname = trim($_POST["surname"]);
$gender = $_POST["gender"];
$account_activation_code = sha1( (string) mt_rand(5, 30)); //Type Casted the INT to STRING on the 1st parameter of sha1 as it needs to be a STRING.
$account_activation_link = "http://www.".$site_domain."/".$social_network_name."/activate_account.php?email=".$_POST['email']."&account_activation_code=".$account_activation_code."";
$account_activation_status = 0; // 1 = active; 0 = not active.
$hashed_password = password_hash($password, PASSWORD_DEFAULT); //Encrypt the password.
//Select Username and Email to check against Mysql DB if they are already registered or not.
$stmt = mysqli_prepare($conn, "SELECT usernames, emails FROM users WHERE usernames = ? OR emails = ?");
mysqli_stmt_bind_param($stmt, 'ss', $username, $email);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
// Check if inputted Username is already registered or not.
if ($row['usernames'] == $username) {
$_SESSION['error'] = "That username is already registered.";
exit();
// Check if inputted Username is between the required 8 to 30 characters long or not.
} elseif (strlen($username) < 8 || strlen($username) > 30) {
$_SESSION['error'] = "Username must be between 8 to 30 characters long!";
exit();
// Check if both inputted Emails match or not.
} elseif ($email != $email_confirmation) {
$_SESSION['error'] = "Emails don't match!";
exit();
// Check if inputed Email is valid or not.
} elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$_SESSION['error'] = "Invalid email! Insert your real Email in order for us to email you your account activation details.";
exit();
// Check if inputted Email is already registered or not.
} elseif ($row['emails'] == $email) {
$_SESSION['error'] = "That email is already registered.";
exit();
// Check if both inputted Passwords match or not.
} elseif ($password != $password_confirmation) {
$_SESSION['error'] = "Passwords don't match.";
exit();
// Check if Password is between 8 to 30 characters long or not.
} elseif (strlen($password) < 8 || strlen($password) > 30) {
$_SESSION['error'] = "Password must be between 6 to 30 characters long!";
exit();
}
else
{
//Insert the user's inputs into Mysql database using php's sql injection prevention method "Prepared Statements".
$stmt = mysqli_prepare($conn, "INSERT INTO users(usernames, passwords, emails, first_names, surnames, genders, accounts_activations_codes, accounts_activations_statuses) VALUES (?, ?, ?, ?, ?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt, 'sssssssi', $username, $hashed_password, $email, $first_name, $surname, $gender, $account_activation_code, $account_activation_status);
mysqli_stmt_execute($stmt);
//Check if user's registration data was successfully submitted or not.
if (!$stmt)
{
$_SESSION['error'] = "Sorry! Our system is currently experiencing a problem registering your account! You may try registering some other time.";
clear_registration_session();
}
else
{
//Email the account activation link for user to click it to confirm their email and activate their new account.
$to = $email;
$subject = "Your ".$site_name." account activation details!";
$body = nl2br("
===============================\r\n
".$site_name." \r\n
===============================\r\n
From: ".$site_admin_email."\r\n
To: ".$email."\r\n
Subject: Yours ".$subject." \r\n
Message: ".$first_name." ".$surname."\r\n You need to click on this following <a href=".$account_activation_link.">link</a> to activate your account. \r\n");
$headers = "From: " . $site_admin_email . "\r\n";
if (!mail($to,$subject,$body,$headers))
{
$_SESSION['error'] = "Sorry! We have failed to email you your account activation details. Please contact the website administrator!";
clear_registration_session();
}
else
{
echo "<h3 style='text-align:center'>Thank you for your registration!<br /> Check your email for details on how to activate your account which you just registered.</h3>";
exit();
}
}
}
}
}
?>
<?php
// Error Messages.
if (isset($_SESSION['error']) && !empty($_SESSION['error'])) {
echo '<p style="color:red;">'.$_SESSION['error'].'</p>';
}
?>
<?php
//Session Messages.
if (isset($_SESSION['message']) && !empty($_SESSION['message'])) {
echo '<p style="color:red;">'.$_SESSION['error'].'</p>';
}
?>
<?php
//Clear Registration Session.
function clear_registration_session()
{
//Clear the User Form inputs, Session Messages and Session Errors so they can no longer be used.
unset($_SESSION['message']);
unset($_SESSION['error']);
unset($_POST);
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<title><?php $social_network_name ?> Signup Page</title>
</head>
<body>
<div class ="container">
<form method="post" action="">
<center><h2>Signup Form</h2></center>
<div class="form-group">
<center><label>Username:</label>
<input type="text" placeholder="Enter a unique Username" name="username" required [A-Za-z0-9] value="<?php if(isset($_POST['username'])) { echo htmlentities($_POST['username']); }?>"></center>
</div>
<div class="form-group">
<center><label>Password:</label>
<input type="password" placeholder="Enter a new Password" name="password" required [A-Za-z0-9]></center>
</div>
<div class="form-group">
<center><label>Repeat Password:</label>
<input type="password" placeholder="Repeat a new Password" name="password_confirmation" required [A-Za-z0-9]></center>
</div>
<div class="form-group">
<center><label>Email:</label>
<input type="email" placeholder="Enter your Email" name="email" required [A-Za-z0-9] value="<?php if(isset($_POST['email'])) { echo htmlentities($_POST['email']); }?>"></center>
</div>
<div class="form-group">
<center><label>Repeat Email:</label>
<input type="email" placeholder="Repeat your Email" name="email_confirmation" required [A-Za-z0-9] value="<?php if(isset($_POST['email_confirmation'])) { echo htmlentities($_POST['email_confirmation']); }?>"></center>
</div>
<div class="form-group">
<center><label>First Name:</label>
<input type="text" placeholder="Enter your First Name" name="first_name" required [A-Za-z] value="<?php if(isset($_POST['first_name'])) { echo htmlentities($_POST['first_name']); }?>"></center>
</div>
<div class="form-group">
<center><label>Surname:</label>
<input type="text" placeholder="Enter your Surname" name="surname" required [A-Za-z] value="<?php if(isset($_POST['surname'])) { echo htmlentities($_POST['surname']); }?>"></center>
</div>
<div class="form-group">
<center><label>Gender:</label>
<input type="radio" name="gender" value="male" <?php if(isset($_POST['gender'])) { echo 'checked'; }?> required>Male<input type="radio" name="gender" value="female" <?php if(isset($_POST['gender'])) { echo 'checked'; }?> required>Female</center>
</div>
<center><button type="submit" class="btn btn-default" name="submit">Register!</button></center>
<center><font color="red" size="3"><b>Already have an account ?</b><br><a href="login.php">Login here!</a></font></center>
</form>
</div>
</body>
</html>
答：您能给我们写信您遇到什么错误吗？只是空白页吗？
