APIs

In the URL: https://google.com/search?q=Codecademy

"q=Codecademy" is the query string

In the URL: https://google.com/search?q=Codecademy&sourceid=chrome

There are two query parameters connected by an ampersand:
1. q=Codecademy (Key = q, value = Codecademy)
2. sourceid=chrome (Key = sourceid, value = chrome)

// Assuming $response is a JSON string
$php_data_object = json_decode($response);

// To decode to an object
$data_object = json_decode($response);
// or
$data_object_2 = json_decode($response, false);

// Accessing data from the object
echo $data_object->info->version;

// To decode to an associative array
$data_array = json_decode($response, true);

// Accessing data from the associative array
echo $data_array['info']['version'];

$response = file_get_contents("https://code-academy.com");

if ($response === false) {
  echo "Something went wrong!";
}

/* Assuming an API response value is assigned to $response and can return nothing, an error object, or a phone number property nested inside of a results object */

$data = json_decode($response, true); 

// Checks if the response is empty
if (empty($data)){
  echo 'Error: No data received';
// Checks if the response has a error value
} elseif (isset($data['error'])) {
  // print error message
  echo 'Error: ' . $data['error'];
} else {
  // print phone number value 
  echo 'Phone Number: ' . $data['results'][0]['phone'];
}