Explore the possibility of using memcache to implement chat rooms.
Suddenly think of this topic, of course, to do complex is certainly not, we only explore the text through the memcache implementation of the chat application possible.
First of all in front of us is how to maintain this key? Is there any possibility of implementation?
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Summary of session issues in php chat rooms: using Mysql + Apache + php to write a chat room contains a private chat module. each user saves the logon time of the current user to the database during logon, session stores the current user name, and then queries the users whose logon time (Last activity time) is later th
Preface HTML5 websocket implements two-way communication between the server and the browser. Two-way communication simplifies the development of Server Message push. The most common is instant messaging and applications with high requirements on real-time information. In the past, most Server Message pushing technologies were "polling" and "persistent connection". These two technologies will produce considerable overhead for the server, and the real-time performance is not very high. Websocket t
Summary of session issues in php chat rooms: using Mysql + Apache + php to write a chat room contains a private chat module. each user saves the logon time of the current user to the database during logon, session to save the current user name, and then query the database login time (Last activity time) more than the c
Swoole has been run successfully. But now I want to ask if the swoole framework can run multiple chat rooms on one server and how to operate them. The demo is php-webimthx! Swoole has been run successfully.
But now I want to ask if the swoole framework can run multiple chat rooms on one server and how to operate them.
is logged, using the lock mechanism. Publicfunction OnClose ($server, $fd) {$username= $ This-users[$FD]; //release the client and synchronize with the lock$ This-Lock-Lock(); Unset ($ This-users[$FD]); $ This-Lock-unlock (); if($username) {$response=Array ('type'=1,//1 for system messages, 2 for user chat 'message'= $username.'left the chat room.' ); $ This->serve
Implement PHP and websocket chat rooms and swoolewebsocket Based on Swoole
Websocket
Websocket is only a network communication protocol
Just like http and ftp, they are all network communication protocols;
Compared with non-persistent protocols such as HTTP, Websocket is a persistent network communication protocol;
Relationship between WebSocket and HTTP
There are intersections, but not all.
Websocket only
Use Tomcat to implement Comet chat rooms based on iframe streaming
First, no picture, no truth, first:
This is a chat room Demo Based On Comet. Its function is similar to QQ chat. If there is a new message in the chat process, the server needs to push the message to the bro
Nodejs implements chat rooms based on socket. io
Because the socket. io module is used for the web video Live project to be implemented later, I spent some time studying it and made some improvements by referring to the online code. I wrote a chat room code myself. I have to admit that the backend fact push capability is a little powerful. This is something I 've
Now there are many friends on the network who want to make their own voice chat room software to ask whether it can be made with. NET? Theoretically it is possible, but the actual production will certainly have a lot of problems, and there is little information on this aspect, Hangzhou ya gu voice chat room production company think that the current should still use Java to make voice
index = Getarrindex (Client.name, Onlinemember); if (Index >-1) { Onlinemember.splice (Index, 1);} var time = GetTime (), var obj = {time:time,author:client.name,text: ', type: ' Loginout ', Member:onlinemember};console.lo G (Time + "" + Client.name + "loginout");//broadcast user has exited Socket.broadcast.emit (' system ', obj);});Front-Desk Connection code:Socket.emit can be understood as a method of bidirectional communication, if client A is connected to Server B, then a calls the emit met
client.This is the simplest chat server. When you start it, It listens to port 1000. When a client sends a message, it sends messages sent from the client to other online users for chat.5. Check the server1) Compile a simple client with the following code:After the connection is established, the client enables two threads, one for sending messages and the other for receiving messages.2) Running ServerThe r
Simple implementation of screen flushing in chat rooms
In the chat room, if we want to achieve screen flushing, it is actually very simple, because we can do this through front-end js.
First, let's talk about the principle. It uses javascript to simulate text input and click the submit button. To achieve this, we need to debug the browser first, such as firebug
Use swoole and websocket to develop simple chat rooms and swoolewebsocket
First, I want to talk about some habits of writing code. First, any configurable parameters or variables must be written into a config file. Second, the Code must have a log record and complete error reporting and record the error. To put it bluntly, swoole should be something that every phper needs to understand. It claims to have re
Character painting, add some vigor to the IRC chat room-general Linux technology-Linux technology and application information. The following is a detailed description.
Download link:
Http://forum.ubuntu.org.cn/download/file.php? Id = 125372
Requirements:
The chat tool must be set to an equal-width font. Otherwise, the image may be distorted.
Take XChat as an example:
Change the text box font t
need a final call to save the data before the program ends. In ASP, the program is application_onend ().Note that the physical memory required for xml dom is 10 times the size of itself.Other important aspects are to provide valid file paths and whether to allow read/write operations. If a file does not exist, it will be created after the first user registration, through the registeruser () method.A registered chat room contains folders that can be r
For network applications, the simple model is to send requests and wait for responses. I call this model a ticket model. The server cannot actively notify the client of what happened, only passively wait for the client to request and respond, the most classic is the HTTP service. This is enough for this model, but this is not enough for the interaction between the server and the customer, requires a duplex model, that is, mutual notification between the server and the customer. For this model, t
variable clients, when the information is received, the information is sent to each online customer through this variable.
Public void sendtoeveryone (string message){Foreach (dictionaryentry client in clients){Chatclient = (chatclient) client. value;Chatclient. Send (Message );}}
}
Test results:
The window design and client design are omitted here. The purpose here is to understand the principle of receiving multi-thread TCP/IP information on the server.
In this example, the chatcl
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