The FIN bit tells whether this is the last message in a series. In this version of WebSockets, 0x3 to 0x7 and 0xB to 0xF have no meaning. The opcode field defines how to interpret the payload data: 0x0 for continuation, 0x1 for text (which is always encoded in UTF-8), 0x2 for binary, and other so-called 'control codes' that will be discussed later. RSV1-3 can be ignored, they are for extensions. Note: You must mask messages even when using a secure socket. (In fact, section 5.1 of the spec says that your server must disconnect from a client if that client sends an unmasked message.) When sending a frame back to the client, do not mask it and do not set the mask bit. Messages from the client must be masked, so your server must expect this to be 1. The MASK bit tells whether the message is encoded. | Masking-key (continued ) | Payload Data | | Extended payload length continued, if payload len = 127 | This is the file which connect to WebSocket server, login the user, sends messages and all the things that does on the client side. The jQuery websocket plugin we mentioned in the Introduction of this post must be in this file. But, I think it will be compatible with versions 1.7 or more. Also, this is the only page the user needs to see for everything. We load jQuery, ws.js, chat.js and chat.css in this page. This is the index.php file : Īs you can see, there’s a chat box and a login box with online users’ display box. ) ENGINE=MyISAM DEFAULT CHARSET=latin1 The Interfaceįirst, we are going to make the interface ie the HTML. We only need one table for storing messages called 'wsMessages' : CREATE TABLE IF NOT EXISTS `wsMessages` ( So, there will be a subfolder in the 'inc' directory called 'vendor'. Note that, you should download Ratchet library using Composer in the 'inc' directory.

The PHP files for the WebSocket server is in the 'inc' directory. The client side files like JavaScript and CSS are in the 'cdn' directory. There are only two directories, 'cdn' and 'inc'. You should use Composer for downloading the Socketo library. You should download the libraries from the hyperlinks of the above components. Here are the main components of the chat we’re going to create :

Php simple websocket