feat: Check request method and sanitize $_POST
feat: Check request method and sanitize $_POST

WHY         : Because I don't want to sanitize $_POST everytime
BEFORE      : if ('POST' === $_SERVER['REQUEST_METHOD']) {
                  $_POST = filter_input_array(INPUT_POST, FILTER_SANITIZE_FULL_SPECIAL_CHARS);
                  // Do something
              }
AFTER       : if (ControllerHelper::IsPost()) {
                  // Do something
              }
ALTERNATIVE : symfony/http-foundation or similir 3rd party package

erdtsksn/kadidphp,erdtsksn/kadidphp