headers ) ) { $this->set_headers( array() ); } $this->set_headers( array_merge( $this->headers, $headers ) ); } public function set_headers_custom( $headers ) { $prefix = $this->get_custom_header_prefix(); $prepared = array(); foreach ( $headers as $name => $value ) { $prepared[ $prefix . $name ] = $value; } $this->set_headers_merge( $prepared ); } }