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View Full Version : LiveChat. How to replace a text box with a dropdown of user names?



connollyc4
10-08-2012, 10:10 PM
Instead of typing any name in a text box, how can I implement this so a user needs to select their name from a drop down menu. (too many people have been creating fake names so I would like a list of names that one must be selected.

Also, Any idea how to make it so if a user enters the chat it says User: Frank Sanders has entered the chat?

Let me know if I need to move this to a PHP forum



For example:


<option value="Pick Your Name">Pick Your Name</option>
<option value="Frank Sanders">Frank Sanders</option>
<option value="Lary Brook">Lary Brook</option>
<option value="Simon Conway">Simon Conway</option>

My code is below.

index.php


<?
session_start();

if(isset($_GET['logout'])){

//exit message
$fp = fopen("log.html", 'a');
fwrite($fp, "<div class='msgln'><i>User ". $_SESSION['name'] ." has left the chat session.</i><br></div>");
fclose($fp);

session_destroy();
header("Location: index.php"); //Redirect the user
}

function loginForm(){
echo'
<div id="loginform">
<form action="index.php" method="post">
<p>Please enter your name to continue:</p>
<label for="name">Name:</label>
<input type="text" name="name" id="name" />
<input type="submit" name="enter" id="enter" value="Enter" />
</form>
</div>
';
}

if(isset($_POST['enter'])){
if($_POST['name'] != ""){
$_SESSION['name'] = stripslashes(htmlspecialchars($_POST['name']));
}
else{
echo '<span class="error">Please type in a name</span>';
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Live Chat</title>
<link type="text/css" rel="stylesheet" href="style.css" />
</head>

<?php
if(!isset($_SESSION['name'])){
loginForm();
}
else{
?>
<div id="wrapper">
<div id="menu">
<p class="welcome">Welcome, <b><?php echo $_SESSION['name']; ?></b></p>
<p class="logout"><a id="exit" href="#">Exit Chat</a></p>
<div style="clear:both"></div>
</div>
<div id="chatbox"><?php
if(file_exists("log.html") && filesize("log.html") > 0){
$handle = fopen("log.html", "r");
$contents = fread($handle, filesize("log.html"));
fclose($handle);

echo $contents;
}
?></div>

<form name="message" action="">
<input name="usermsg" type="text" id="usermsg" size="63" />
<input name="submitmsg" type="submit" id="submitmsg" value="Send" />
</form>
</div>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<script type="text/javascript">
// jQuery Document
$(document).ready(function(){
//If user submits the form
$("#submitmsg").click(function(){
var clientmsg = $("#usermsg").val();
$.post("post.php", {text: clientmsg});
$("#usermsg").attr("value", "");
return false;
});

//Load the file containing the chat log
function loadLog(){
var oldscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
$.ajax({
url: "log.html",
cache: false,
success: function(html){
$("#chatbox").html(html); //Insert chat log into the #chatbox div
var newscrollHeight = $("#chatbox").attr("scrollHeight") - 20;
if(newscrollHeight > oldscrollHeight){
$("#chatbox").animate({ scrollTop: newscrollHeight }, 'normal'); //Autoscroll to bottom of div
}
},
});
}
setInterval (loadLog, 2500); //Reload file every 2.5 seconds

//If user wants to end session
$("#exit").click(function(){
var exit = confirm("Are you sure you want to end the session?");
if(exit==true){window.location = 'index.php?logout=true';}
});
});
</script>
<?php
}
?>
</body>
</html>

hdewantara
10-09-2012, 11:01 AM
Interesting.

I see that the log.html itself is the content of #chatbox? So it can't be used to detect which user(name) are currently logged in.

Maybe you need another simple text/ xml file which stores these logged-in names; retrieve/update it at the same time you load log.html (each 2.5 seconds).

But I wonder whether that would put another burden on your server?



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