What are the common pitfalls to avoid when updating multiple database records in PHP using form inputs?

One common pitfall to avoid when updating multiple database records in PHP using form inputs is not properly sanitizing user input, which can lead to SQL injection attacks. To prevent this, always use prepared statements with parameterized queries to securely update the database records. 

// Assuming $db is your database connection object

// Sanitize and validate user input
$record_ids = $_POST['record_ids'];
$updated_values = $_POST['updated_values'];

// Prepare the update query
$stmt = $db->prepare("UPDATE records SET value = ? WHERE id = ?");
$stmt->bind_param("si", $value, $id);

// Update each record
foreach ($record_ids as $id) {
    $value = $updated_values[$id];
    $stmt->execute();
}

$stmt->close();

Keywords

SQL injection prepared statements PDO database transactions input validation

Related Questions