What are the potential pitfalls of using JavaScript to manipulate tables and then transferring the data to PHP for database insertion?

One potential pitfall is that JavaScript manipulation of tables may not always accurately reflect the data being transferred to PHP for database insertion, leading to inconsistencies or errors in the database. To solve this issue, it is important to validate and sanitize the data before sending it to PHP for insertion to ensure data integrity.

// Sample PHP code snippet to validate and sanitize data before insertion into the database

// Assuming $data is the array of data transferred from JavaScript
// Validate and sanitize each value in the $data array
foreach ($data as $key => $value) {
    $data[$key] = filter_var($value, FILTER_SANITIZE_STRING);
}

// Insert validated and sanitized data into the database
// Assuming $conn is the database connection object
$stmt = $conn->prepare("INSERT INTO table_name (column1, column2) VALUES (?, ?)");
$stmt->bind_param("ss", $data['column1'], $data['column2']);
$stmt->execute();