How can PHP functions like json_decode and json_encode be effectively utilized to manipulate API responses?

To manipulate API responses using PHP functions like json_decode and json_encode, you can first decode the API response into a PHP array using json_decode, manipulate the data as needed, and then encode it back into JSON format using json_encode before sending it back in the response.

// Assuming $apiResponse contains the API response in JSON format
$decodedResponse = json_decode($apiResponse, true);

// Manipulate the data as needed
$decodedResponse['new_key'] = 'new_value';

// Encode the modified data back into JSON format
$modifiedResponse = json_encode($decodedResponse);

// Send the modified response back in the API response
echo $modifiedResponse;