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Когда я попробовал свой чат-бокс на своем веб-сайте html, появились предупреждения.Ошибка php: Предупреждение: session_start(): Не удается отправить сеанс cookie
Предупреждение: session_start(): Не удается отправить сеанс cookie - заголовки уже отправлены (вывод запущен в /home/bitmsfgx/public_html/chat/index.php:8) в/home/bitmsfgx/public_html/chat/index. php в строке 10
Предупреждение: session_start(): Не удается отправить ограничитель кеша сеанса - уже отправленные заголовки (вывод запущен в /home/bitmsfgx/public_html/chat/index.php:8) в/home/bitmsfgx/public_html/чат/index.php в строке 10
index.php
<!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>Chat</title>
<link type="text/css" rel="stylesheet" href="style.css" />
</head>
<?
@ob_start();
session_start();
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>';
}
}
?>
<?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"></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(){
$.ajax({
url: "log.html",
cache: false,
success: function(html){
$("#chatbox").html(html); //Insert chat log into the #chatbox div
},
});
}
//Load the file containing the chat log
function loadLog(){
var oldscrollHeight = $("#chatbox").attr("scrollHeight") - 20; //Scroll height before the request
$.ajax({
url: "log.html",
cache: false,
success: function(html){
$("#chatbox").html(html); //Insert chat log into the #chatbox div
//Auto-scroll
var newscrollHeight = $("#chatbox").attr("scrollHeight") - 20; //Scroll height after the request
if(newscrollHeight > oldscrollHeight){
$("#chatbox").animate({ scrollTop: newscrollHeight }, 'normal'); //Autoscroll to bottom of div
}
},
});
}
setInterval (loadLog, 2500); //Reload file every 2500 ms or x ms if you w
});
</script>
<?php
}
?>
<script type="text/javascript">
// jQuery Document
$(document).ready(function(){
//If user wants to end session
$("#exit").click(function(){
var exit = confirm("Are you sure you want to end the session?");
if(exit==true){window.location = 'index.php?logout=true';}
});
});
</script>
<?php
if(isset($_GET['logout'])){
//Simple 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
}
?>
</body>
</html>
post.php
<?
@ob_start();
session_start();
if(isset($_SESSION['name'])){
$text = $_POST['text'];
$fp = fopen("log.html", 'a');
fwrite($fp, "<div class='msgln'>(".date("g:i A").") <b>".$_SESSION['name']."</b>: ".stripslashes(htmlspecialchars($text))."<br></div>");
fclose($fp);
}
?>
style.css
/* CSS Document */
body {
font:12px arial;
background-color: #ffffff !important;
text-align:center;
padding:35px; }
form, p, span {
margin:0;
padding:0; }
input { font:12px arial; }
a {
color:#0000FF;
text-decoration:none; }
a:hover { text-decoration:underline; }
#wrapper, #loginform {
margin:0 auto;
padding-bottom:25px;
background:#EBF4FB;
width:504px;
border:1px solid #ACD8F0; }
#loginform { padding-top:18px; }
#loginform p { margin: 5px; }
#chatbox {
text-align:left;
margin:0 auto;
margin-bottom:25px;
padding:10px;
background:#fff;
height:270px;
width:430px;
border:1px solid #ACD8F0;
overflow:auto; }
#usermsg {
width:395px;
border:1px solid #ACD8F0; }
#submit { width: 60px; }
.error { color: #ff0000; }
#menu { padding:12.5px 25px 12.5px 25px; }
.welcome { float:left; }
.logout { float:right; }
.msgln { margin:0 0 2px 0; }