private function updateHostFromUri(): void
    {
        $host = $this->uri->getHost();

        if ($host === '') {
            return;
        }

        if (($port = $this->uri->getPort()) !== null) {
            $host .= ':' . $port;
        }

        $this->headerNames['host'] = 'Host';

        // Remove an existing host header if present, regardless of current
        // de-normalization of the header name.
        // @see https://github.com/zendframework/zend-diactoros/issues/91
        foreach (\array_keys($this->headers) as $oldHeader) {
            if (\strtolower($oldHeader) === 'host') {
                unset($this->headers[$oldHeader]);
            }
        }

        // Ensure Host is the first header.
        // See: http://tools.ietf.org/html/rfc7230#section-5.4
        $this->headers = ['Host' => [$host]] + $this->headers;
    }
private function updateHostFromUri(): void
    {
        $host = $this->uri->getHost();

        if ($host === '') {
            return;
        }

        if (($port = $this->uri->getPort()) !== null) {
            $host .= ':' . $port;
        }

        $this->headerNames['host'] = 'Host';

        // Remove an existing host header if present, regardless of current
        // de-normalization of the header name.
        // @see https://github.com/zendframework/zend-diactoros/issues/91
        foreach (\array_keys($this->headers) as $oldHeader) {
            if (\strtolower($oldHeader) === 'host') {
                unset($this->headers[$oldHeader]);
            }
        }

        // Ensure Host is the first header.
        // See: http://tools.ietf.org/html/rfc7230#section-5.4
        $this->headers = ['Host' => [$host]] + $this->headers;
    }
private function updateHostFromUri ( ) : void { $ host = $ this -> uri -> getHost ( ) ; if ( $ host === '' ) { return ; } if ( ( $ port = $ this -> uri -> getPort ( ) ) !== null ) { $ host .= ':' . $ port ; } $ this -> headerNames [ 'host' ] = 'Host' ; // Remove an existing host header if present, regardless of current // de-normalization of the header name. // @see https://github.com/zendframework/zend-diactoros/issues/91 foreach ( \ array_keys ( $ this -> headers ) as $ oldHeader ) { if ( \ strtolower ( $ oldHeader ) === 'host' ) { unset ( $ this -> headers [ $ oldHeader ] ) ; } } // Ensure Host is the first header. // See: http://tools.ietf.org/html/rfc7230#section-5.4 $ this -> headers = [ 'Host' => [ $ host ] ] + $ this -> headers ; }
Retrieve the host from the URI instance.

@return void
Retrieve the host from the URI instance .