What are alternative methods to sending HTML forms in emails with PHP to ensure data integrity?

Sending HTML forms in emails with PHP can lead to potential data integrity issues, as the user-submitted data may not be properly sanitized or validated before being sent. To ensure data integrity, an alternative method is to store the form data in a database and send a notification email to the recipient with a link to view the data securely on a web page. 

// Store form data in a database
// Assuming you have a database connection established

// Sanitize and validate form data
$name = filter_var($_POST['name'], FILTER_SANITIZE_STRING);
$email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);

// Insert data into database
$stmt = $pdo->prepare("INSERT INTO form_data (name, email) VALUES (:name, :email)");
$stmt->execute(array(':name' => $name, ':email' => $email));

// Send notification email with link to view data
$to = "recipient@example.com";
$subject = "New Form Submission";
$message = "A new form submission is available for viewing at: http://example.com/view_form.php";
$headers = "From: sender@example.com";

mail($to, $subject, $message, $headers);

Keywords

PHP HTML forms email data integrity validation

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