function calculate_sum($a, $b) { return $a + $b; } echo calculate_sum(2, 3); // Output: 5
if ($_SERVER['REQUEST_METHOD'] === 'POST') { $username = $_POST['username']; $password = $_POST['password']; // Do something with $username and $password }Possible package libraries for working with input parameters in PHP include: - Symfony HttpFoundation component - Laravel Request class - Guzzle HTTP client library