What precautions should be taken when using decodeURIComponent() on form data in PHP to prevent data corruption?

When using `decodeURIComponent()` on form data in PHP, it is important to ensure that the data is properly encoded before being decoded to prevent any data corruption. To do this, you can use `urlencode()` in PHP to encode the form data before sending it to the server, and then use `urldecode()` to decode it on the server side.

// Encode form data before sending it
$encoded_data = urlencode($_POST['form_data']);

// Decode the encoded data on the server side
$decoded_data = urldecode($encoded_data);

// Use the decoded data as needed
echo $decoded_data;