So basically, this is my situation right now. I am using xampp(apache friends) for my localhost and I am currently in the process of building a simple chat room windows using AJAX and PHP. Currently, I have two files and those are C:/xampp/htdocs/AJAX CHAT/index.php and C:/xampp/htdocs/AJAX CHAT/chat.php.
index.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://ift.tt/kkyg93">
<html xmlns="http:http://ift.tt/lH0Osb">
<head>
<meta http-equiv="Content-Type" content="text/html" />
<title>Deontray's Chat Room!</title>
<script src="jquery-1.7.2.js" type="text/javascript"></script>
<script type="text/javascript">
function chat_initial() {
var user = document.getElementById("chat_user").value;
$.post('./chat.php', {
stage: "initial",
user: user
}, function(data) {
alert(data);
});
/*
get user
check if taken
hide the initial div
display the primary div
*/
}
</script>
<style type="text/css">
<!-- #chatbox {
background-color: #DDD;
border: 1px solid #000;
width: 700px;
height: 500px;
}
#chatbox #initial {
text-align: center;
margin: auto;
width: 250px;
padding-top: 100px;
}
-->
</style>
</head>
<body>
<div id="chatbox">
<div id="initial">
<table>
<tr align="center">
<td>Enter a username to start chatting:</td>
</tr>
<tr align="center">
<td>
<input type="text" name="chat_user" id="chat_user" style="width: 200px;" />
</td>
</tr>
<tr align="center">
<td>
<br />
<input type="button" value="Enter chat!" onClick="chat_initial();" />
</td>
</tr>
</table>
</div>
<div id="primary"></div>
</div>
</body>
</html>
chat.php
<?php
//connect to MySQL database
mysqli_connect("localhost", "root", "deontray");
mysqli_select_db("tutorials");
//read the stage
$stage = $_POST['stage'];
//primary code
if($stage == "initial"){
//check the username
$user = $_POST['user'];
$query = mysqli_query("SELECT * FROM `chat_active` WHERE user = '$user'");
if (mysqli_num_rows($query) == 0){
$time = time();
//
mysqli_query("INSERT INTO `chat_active` VALUES ('$user', '$time')");
//set the session
$_SESSION['user'] = $user;
echo "good";
}
else
echo "Username Taken";
}
else
echo "Error.";
?>
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