4.x is outdated, please check the latest version 22.x

Latest version: pecl install openswoole-22.1.2


<?php Swoole\Coroutine\Http\Client->set(array $options): bool



The key-value array of settings to use for the client.


Returns true on successful and false when not.


Update or set the settings of a HTTP Client.

This method allows you to set options on a per client basis, this client shares options with the other coroutine clients, please also checkout the overall settings under client configuration.

Default settings

If there is no specific settings updated, the HTTP client uses the following default values (these are additional options for this client only):

  • method: The HTTP method to use

  • reconnect: How many times to retry to connect if no success

  • timeout: The wait time for connection timeouts, this will enable HTTP timeout detection if set, the unit is seconds using a float type.

    • If the connection times out or is closed by the server, the status code will be -1.
    • If the server does not respond within the agreed time, causing a timeout, the status code is -2.
    • A timeout will cause the server to close the connection.
    • For more information on client timeouts, visit the timeout guide.
  • defer: If to defer the current request or not

  • keep_alive: If to enable keep_alive to use persistent connections

  • websocket_mask: If to enable Websocket mask, by default it is set to true due to RFC regulations. However, this option will impact performance slightly but you may disable it if it is not needed. This option when true will convert WebSocket data to use a mask instead.

  • websocket_compression: If to compress Websocket messages or not. By default it is false but when compression is used, performance will be slightly impacted due to having time for compressing data. It relies on the zlib package and it must be installed. Compression only works if the server and client support it, compression support is determined during the handshake, see RFC-7692.

    • You will also need to use the SWOOLE_WEBSOCKET_FLAG_COMPRESS flag to enable compression for a specific connection, see WebSocket Compression example.
  • http_compression: If to compress the HTTP request or not.

Since v.4.7.0

  • body_decompression: If to decompress the returned body or not.

Since v.4.7.0

Client Configuration Defaults Example

    'method' => 'GET',
    'reconnect' => 1,
    'timeout' => 0.5,
    'defer' => false,
    'keep_alive' => true,
    'websocket_mask' => true,
    'websocket_compression' => false,
    'http_compression' => false,
    'body_decompression' => true,

Complete Example

use Swoole\Coroutine\Http\Client;

  $client = new Client('', 80);

  // Setup the client here
      'timeout' => 1,
      'reconnect' => 3,
      'keep_alive' => true,

      'Host' => 'localhost',
      'User-Agent' => 'Chrome/49.0.2587.3',
      'Accept' => 'text/html,application/xhtml+xml,application/xml',
      'Accept-Encoding' => 'gzip',


  echo $client->body;

Last updated on August 31, 2022