$url = "http://example.com/?name=john&age=25"; $name = getQueryParameter($url, 'name'); echo $name; // Output: john
$url = "http://example.com/?name=john&age=25"; $age = getQueryParameter($url, 'age'); echo $age; // Output: 25In this example, the `getQueryParameter` function is used again, but this time to retrieve the value of the `age` parameter from the URL string. It is important to note that the `getQueryParameter` function is not a part of the PHP core library, but rather a part of various PHP packages and libraries. Some popular packages that include the `getQueryParameter` function are: - Symfony - Laravel - CodeIgniter