public function offsetGet( $offset ) {
		return isset( $this->config[ $offset ] ) ? $this->config[ $offset ] : null;
	}
public function offsetGet( $offset ) {
		return isset( $this->config[ $offset ] ) ? $this->config[ $offset ] : null;
	}
public function offsetGet ( $ offset ) { return isset ( $ this -> config [ $ offset ] ) ? $ this -> config [ $ offset ] : null ; }
Get array value by key

@param  int|string $offset Array key
@return mixed
Get array value by key