What are some common pitfalls when using PHP to handle form submissions, such as in the case of the school project described in the forum thread?

One common pitfall when handling form submissions in PHP is not properly sanitizing user input, leaving the application vulnerable to SQL injection attacks. To solve this issue, always use prepared statements or parameterized queries to interact with the database, which helps prevent malicious SQL queries from being executed. 

// Example of using prepared statements to handle form submissions securely

// Assuming $conn is the database connection object

// Get form data
$name = $_POST['name'];
$email = $_POST['email'];

// Prepare SQL statement with placeholders
$stmt = $conn->prepare("INSERT INTO users (name, email) VALUES (?, ?)");

// Bind parameters to the placeholders
$stmt->bind_param("ss", $name, $email);

// Execute the statement
$stmt->execute();

// Close the statement and connection
$stmt->close();
$conn->close();

Keywords

SQL injection XSS attacks form validation CSRF protection error handling

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