What potential pitfalls should be considered when submitting edited data in PHP?

When submitting edited data in PHP, potential pitfalls to consider include SQL injection attacks, cross-site scripting (XSS) attacks, and data validation errors. To mitigate these risks, always sanitize and validate user input before using it in SQL queries or displaying it on a webpage. 

// Sanitize and validate user input
$editedData = filter_input(INPUT_POST, 'edited_data', FILTER_SANITIZE_STRING);

// Use prepared statements to prevent SQL injection
$stmt = $pdo->prepare("UPDATE table SET column = :editedData WHERE id = :id");
$stmt->bindParam(':editedData', $editedData);
$stmt->bindParam(':id', $id);
$stmt->execute();

Keywords

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

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