public function getNumberOfRequiredParameters() : int
    {
        return count(array_filter(
            $this->getParameters(),
            static function (ReflectionParameter $p) : bool {
                return ! $p->isOptional();
            }
        ));
    }
public function getNumberOfRequiredParameters() : int
    {
        return count(array_filter(
            $this->getParameters(),
            static function (ReflectionParameter $p) : bool {
                return ! $p->isOptional();
            }
        ));
    }
public function getNumberOfRequiredParameters ( ) : int { return count ( array_filter ( $ this -> getParameters ( ) , static function ( ReflectionParameter $ p ) : bool { return ! $ p -> isOptional ( ) ; } ) ) ; }
Get the number of required parameters for this method.
Get the number of required parameters for this method .