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live chat using php

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live chat using php

devangnegandhi	23 Feb, 2007 - 07:05 PM Post #1
New D.I.C Head Joined: 23 Jan, 2006 Posts: 39 Dream Kudos: 100 My Contributions	i wanted to find out how can i make a webpage which performs live chat...... i am looking for a technique which will not use the traditional technique of browser refresh to show new messages but instead a server push which will immediately push any new messages on to the clients browser...... i know there is a technique as sites like meebo.com and others use it....... its called long-polling or comet i think.......not sure though........ i wanted to find out more on it??? anyone pls!!!!
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Craige	RE: Live Chat Using Php 24 Feb, 2007 - 10:13 AM Post #2
D.I.C Head Joined: 2 Nov, 2006 Posts: 63 My Contributions	Zend Tutorials Go through the results labled "AJAX Chat Tutorial Part..." in the proper order. Also, note: it involves the browser sending requests to the server, not the other way around. The other way around, as you described, is impossible.
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alpha02	RE: Live Chat Using Php 27 Feb, 2007 - 10:44 AM Post #3
D.I.C Addict Joined: 20 May, 2006 Posts: 687 Dream Kudos: 850 My Contributions	I made this using AJAX earlier. I will be happy to send this to you so yo can use it. Overall here is how it works: -The browser sends an AJAX request to the MySQL database in the MESSAGES table to fetch messages. -The broswer formats this text to show in the chat window. -The browser send an AJAX request to the USERS table to get online users (in the chat) and deleted timed-out users (with a timestamp). -The browser formats and shows this information. When you send a message, it is simple: an AJAX script writes the message in the MESSAGES table. The other users' AJAX requests will fetch this one. Smileys are enabled. The window itself has a dark green skin. I will send it to you in a few hours, because I am not at home.
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