What are some common pitfalls for beginners when trying to create a survey form in PHP?

One common pitfall for beginners when creating a survey form in PHP is not properly sanitizing user input, which can lead to security vulnerabilities such as SQL injection attacks. To solve this issue, make sure to use functions like htmlspecialchars() or mysqli_real_escape_string() to sanitize user input before storing it in a database. 

// Sanitize user input using htmlspecialchars function
$name = htmlspecialchars($_POST['name']);
$email = htmlspecialchars($_POST['email']);
$feedback = htmlspecialchars($_POST['feedback']);

// Store sanitized input in database
// Example: mysqli_query($connection, "INSERT INTO survey_responses (name, email, feedback) VALUES ('$name', '$email', '$feedback')");

Keywords

HTML form PHP form handling validation security SQL injection

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