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<title>AJAX Driven Chat - Install Instructions.</title>
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<h2>Installing the AJAX Driven Chat Application.</h2>
<p>This document describes how to install the sample AJAX Driven Chat application on your local machine. To find
detailed information on how this application works please visit:
<a href="http://www.dynamicajax.com/fr/AJAX_Driven_Web_Chat-271_290_291.html">http://www.dynamicajax.com/fr/AJAX_Driven_Web_Chat-271_290_291.html</a></p>
<p>You can also download the code for this application there.</p>
<p style="font-size: 9px; font-style: italic;">All code is provided AS-IS. This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You may use this code in your own applications, but I would
love it if you would provide a link back to <a href="http://www.DynamicAJAX.com">http://www.DynamicAJAX.com</a> so that others can find my site and
hopefully make use of this code and tutorial.</p>
<h3>Requirements:</h3>
<ul>
<li>
Webserver with PHP installed (Tested for IIS and Apache, PHP 4.3.x, PHP 5.x)<br />
<a href="http://httpd.apache.org/">Download Apache</a><br />
<a href="http://www.php.net">Download PHP</a>
</li>
<li>
MySQL (Tested under 4.3.9)<br />
<i>You can use a different database if you would like, but you will need to change the database.php abstraction file
to match your database connection settings.</i><br />
<a href="http://www.mysql.com">Download MySQL</a>
</li>
</ul>
<h3>Contents of this Tutorial</h3>
<p>You should have recieved this file in a ZIP that contains all the necessary files to run the Chat application on you machine. If you do not have
any of the files listed below, you can download the tutorial from <a href="http://www.dynamicajax.com/fr/AJAX_Driven_Web_Chat-271_290_291.html">Dynamic AJAX</a></p>
<ul>
<li>readme.html (this file)</li>
<li>chat.html</li>
<li>chat.sql</li>
<li>database.php</li>
<li>getChat.php</li>
</ul>
<h3>Installation</h3>
<p>Installing the Dynamic Chat application is pretty straight forward. The only piece that requires any effort is setting up the database. If you have
any expirence with using MySQL on the web, this should be extreamly easy. You can either create a new database, or use an existing database for the Chat
application. If you are using an existing database for the chat application, simply run the chat.sql script on your database to create the database tables.
Do this either in your favorite MySQL tool, or through the MySQL command prompt with:<br />
source c:\path to chat\chat.sql</p>
<p>If you are creating a new database for the chat application, create a new database with:<br />
<pre class="mysql"><span style="color: #993333; font-weight: bold;">CREATE DATABASE</span> chat;</pre></p>
<p>Be sure to grant access to the chat database. This code requires the old password format for PHP to be able to connect to MySQL.</p>
<p> <pre class="mysql"><span style="color: #993333; font-weight: bold;">GRANT</span> ALL ON chat.* TO myLogin IDENTIFIED <span style="color: #993333; font-weight: bold;">BY</span> <span style="color: #ff0000;">'myPassword'</span>;
<span style="color: #993333; font-weight: bold;">USE</span> mysql;
<span style="color: #993333; font-weight: bold;">UPDATE</span> user <span style="color: #993333; font-weight: bold;">SET</span> password = old_password<span style="color: #66cc66;">(</span><span style="color: #ff0000;">'myPassword'</span><span style="color: #66cc66;">)</span> <span style="color: #993333; font-weight: bold;">WHERE</span> user = <span style="color: #ff0000;">'myLogin'</span>;
<span style="color: #993333; font-weight: bold;">FLUSH PRIVILEGES</span>;
<span style="color: #993333; font-weight: bold;">COMMIT</span>;</pre></p>
<p>Once you have created the database tables all that is left is to set the correct connection information in database.php</p>
<p><pre class="php"><span style="color: #000000; font-weight: bold;">function</span> db_connect<span style="color: #66cc66;">(</span><span style="color: #0000ff;">$server</span> = <span style="color: #ff0000;">'your server'</span>, <span style="color: #0000ff;">$username</span> = <span style="color: #ff0000;">'your db user name'</span>,
<span style="color: #0000ff;">$password</span> = <span style="color: #ff0000;">'your db password'</span>, <span style="color: #0000ff;">$database</span> = <span style="color: #ff0000;">'your database name'</span>, <span style="color: #0000ff;">$link</span> = <span style="color: #ff0000;">'db_link'</span><span style="color: #66cc66;">)</span> <span style="color: #66cc66;">{</span></pre></p>
<p>You can now simply place chat.html, database.php, and getChat.php into one of your websites directory and browse to chat.html.</p>
<p>Open up two different browser instances to see the Chat Application in action!</p>
<p>Hopefully this tutorial will give you a good introduction to AJAX technologies. If you have any questions or comments about this application, please write
me at <a href="mailto:rsmith@nthcs.com?subject=AJAX%20Chat%20Feedback">rsmith@nthcs.com</a>, and visit <a href="http://www.dynamicAJAX.com">http://www.DynamicAJAX.com</a>
for updates to the tutorial and other great AJAX resources.</p>
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