PHP Fundamentals

Chapter 13: Working with Forms

13.1 Processing Form Data

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $name = $_POST["name"];
    $email = $_POST["email"];
    // Process form data
}
?>

13.2 Form Validation

if (empty($_POST["name"])) {
    $errors[] = "Name is required";
}

if (!filter_var($_POST["email"], FILTER_VALIDATE_EMAIL)) {
    $errors[] = "Invalid email";
}

13.3 Security Best Practices

• Validate all input
• Sanitize data before use
• Use prepared statements for databases
• Protect against XSS attacks