What precautions should be taken when copying code from books for PHP form handling?

When copying code from books for PHP form handling, it is important to ensure that the code is properly understood and adapted to fit the specific requirements of your project. It is also crucial to validate and sanitize user input to prevent security vulnerabilities such as SQL injection and cross-site scripting attacks. Additionally, error handling should be implemented to gracefully handle any issues that may arise during form submission. 

<?php
// Validate and sanitize user input
$name = isset($_POST['name']) ? htmlspecialchars($_POST['name']) : '';
$email = isset($_POST['email']) ? filter_var($_POST['email'], FILTER_SANITIZE_EMAIL) : '';

// Error handling
if(empty($name) || empty($email)) {
    echo "Please fill out all required fields.";
} else {
    // Process form submission
    // Your code here
}
?>

Keywords

SQL injection cross-site scripting form validation data sanitization security vulnerabilities

Related Questions