Lỗi Warning: Cannot modify header information - headers already sent by

Cho mình hỏi mình setup code booster trên host mà bị lỗi này là sao vậy mọi người
Dark.Hades viết 12:07 ngày 01/10/2018
Bạn đưa dòng toàn bộ đoạn code lên để đối chiếu mới biết chính xác.
Còn lại thì là do trước dòng 11 đã có kí tự lạ echo ra ngoài
nguyen an khuong viết 12:01 ngày 01/10/2018
bạn muốn coi đoạn code nào
nguyen an khuong viết 12:05 ngày 01/10/2018
<?php 
if (basename($_SERVER['SCRIPT_FILENAME']) == basename(__FILE__)) {exit("NOT ALLOWED");}
ob_start();
require_once '@/config.php';
require_once '@/init.php';
if (!(empty($maintaince))) {
die($maintaince);
}
if (!($user -> LoggedIn()) || !($user -> notBanned($odb)))
{
header('location: login.php');
die();
}
?>
<head>
        <meta charset="utf-8">

        <title><?php echo htmlspecialchars($sitename); ?> - <?php echo $paginaname; ?></title>

        <meta name="description" content="<?php echo htmlspecialchars($description); ?>">
        <meta name="author" content="StrikeREAD">
        <meta name="robots" content="noindex, nofollow">
        <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1.0">
        <link rel="shortcut icon" href="img/favicon.png">
        <link rel="apple-touch-icon" href="img/icon57.png" sizes="57x57">
        <link rel="apple-touch-icon" href="img/icon72.png" sizes="72x72">
        <link rel="apple-touch-icon" href="img/icon76.png" sizes="76x76">
        <link rel="apple-touch-icon" href="img/icon114.png" sizes="114x114">
        <link rel="apple-touch-icon" href="img/icon120.png" sizes="120x120">
        <link rel="apple-touch-icon" href="img/icon144.png" sizes="144x144">
        <link rel="apple-touch-icon" href="img/icon152.png" sizes="152x152">
        <link rel="apple-touch-icon" href="img/icon180.png" sizes="180x180">
        <link rel="stylesheet" href="css/bootstrap.min.css">
        <link rel="stylesheet" href="css/plugins.css">
        <link rel="stylesheet" href="css/main.css">
		<link rel="stylesheet" href="css/themes/amethyst.css" id="theme-link">
        <link rel="stylesheet" href="css/themes.css">
        <script src="js/vendor/modernizr-2.8.3.min.js"></script>
	<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
    </head>
    <body>
	<img src="https://daynhauhoc.com/img/bg.jpg" alt="Full Background" class="full-bg animation-pulseSlow"></img>
        <div id="page-wrapper" class="page-loading">
            <div class="preloader">
                <div class="inner">
                    <!-- Animation spinner for all modern browsers -->
                    <div class="preloader-spinner themed-background hidden-lt-ie10"></div>

                    <!-- Text for IE9 -->
                    <h3 class="text-primary visible-lt-ie10"><strong>Loading..</strong></h3>
                </div>
            </div>
            <div id="page-container" class="header-fixed-top sidebar-visible-lg-full">
                <div id="sidebar-alt" tabindex="-1" aria-hidden="true">
                    <a href="javascript:void(0)" id="sidebar-alt-close" onclick="App.sidebar('toggle-sidebar-alt');"><i class="fa fa-times"></i></a>

                    <div id="sidebar-scroll-alt">
                        <!-- Sidebar Content -->
                        <div class="sidebar-content">
                            <!-- Profile -->
                         
                        </div>
                      
                    </div>
                   
                </div>
                
			
				
                <div id="sidebar">
                 
                    <div id="sidebar-brand" class="themed-background">
                        <a href="index.php" class="sidebar-title">
                            <i class="fa fa-terminal"></i> <span class="sidebar-nav-mini-hide"><strong><?php echo htmlspecialchars($sitename); ?></strong></span>
                        </a>
                    </div>
            

                 
                    <div id="sidebar-scroll">
                 
                        <div class="sidebar-content">
                    
                            <ul class="sidebar-nav">
                                <li>
                                    <a href="index.php" <?php if (basename($_SERVER['PHP_SELF']) == "index.php") { ?> class="active" <?php } ?>><i class="fa fa-home sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Trang Chủ</span></a>
                                </li>
                                <li class="sidebar-separator">
                                    
                                </li>
						<?php if ($user->hasMembership($odb)) { ?>
						<li>
                                    <a href="stress.php" <?php if (basename($_SERVER['PHP_SELF']) == "stress.php") { ?> class="active" <?php } ?> ><i class="fa fa-power-off sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Stresser</span></a>
                                </li>
						<?php } else { ?>
								<li>
                                    <a href="tb.php" <?php if (basename($_SERVER['PHP_SELF']) == "tb.php") { ?> class="active" <?php } ?> ><i class="fa fa-power-off sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Stresser</span></a>
                                </li>
						<?php } ?>
						<?php
						if ($user -> isAdmin($odb) || $user -> isVIP($odb) ) {
						?>
						
						<?php
						}
						?>
						 <li class="sidebar-separator">
                                    
                                </li>
						<?php if ($user->hasMembership($odb)) { ?>
						<li>
                                    <a href="tools.php" <?php if (basename($_SERVER['PHP_SELF']) == "tools.php") { ?> class="active" <?php } ?>><i class="fa fa-book sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Công Cụ</span></a>
                              </li>	
						<?php } else {?>
						<li>
                                    <a href="tb.php" <?php if (basename($_SERVER['PHP_SELF']) == "tb.php") { ?> class="active" <?php } ?> ><i class="fa fa-book sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Công cụ</span></a>
                                </li>
						<?php } ?>
						<?php
						if ($user -> isAdmin($odb) || $user -> isVIP($odb) ) {
						?>
						
						<?php
						}
						?>
						 <li class="sidebar-separator">
                                    
                                </li>
						<li>
                                    <a href="tickets.php" <?php if (basename($_SERVER['PHP_SELF']) == "tickets.php") { ?> class="active" <?php } ?>><i class="fa fa-envelope sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Hỗ Trợ</span></a>
                              </li>
						<li>
                                    <a href="purchase.php" <?php if (basename($_SERVER['PHP_SELF']) == "purchase.php") { ?> class="active" <?php } ?>><i class="fa fa-shopping-cart sidebar-nav-icon"></i><span class="sidebar-nav-mini-hide">Purchase</span></a>
                              </li>
							  
						<?php
						if ($user -> isAdmin($odb)) {
						echo '<li class="sidebar-separator">
                                    
                                </li>
								<li>
							<a href="yolo/admin/"><i class="fa fa-dashboard sidebar-nav-icon"></i> Admin Dashboard</a>
							</li>';
						}
						?>
                            </ul>

                        </div>
                 
                    </div>
                 

               
                    <div id="sidebar-extra-info" class="sidebar-content sidebar-nav-mini-hide">
                        <div class="text-center">
                            <small><?php echo htmlspecialchars($sitename); ?> v0.1</small><br>
                            <small><span>2016</span> &copy; <a href="<?php echo htmlspecialchars($siteurl); ?>" target="_blank"><?php echo htmlspecialchars($sitename); ?></a></small>
                        </div>
                    </div>
         
                </div>
				<div id="main-container">
				<header class="navbar navbar-inverse navbar-fixed-top">
                       
                        <ul class="nav navbar-nav-custom">
                          
                            <li>
                                <a href="javascript:void(0)" onclick="App.sidebar('toggle-sidebar');">
                                    <i class="fa fa-ellipsis-v fa-fw animation-fadeInRight" id="sidebar-toggle-mini"></i>
                                    <i class="fa fa-bars fa-fw animation-fadeInRight" id="sidebar-toggle-full"></i>
                                </a>
                            </li>
                           

                      
                            <li class="hidden-xs animation-fadeInQuick">
                                <a href=""><strong><?php echo $paginaname; ?></strong></a>
                            </li>
                         
                        </ul>
               
                        <ul class="nav navbar-nav-custom pull-right">

                            <li class="dropdown">
                                <a href="javascript:void(0)" class="dropdown-toggle" data-toggle="dropdown">
                                    <img src="https://scontent-hkg3-1.xx.fbcdn.net/v/t1.0-9/13015688_222738398090559_3576823797636941039_n.jpg?oh=d6022f748344f47578d75e7f1dc2d694&oe=58BF82D3" alt="avatar">
                                </a>
                                <ul class="dropdown-menu dropdown-menu-right">
                                    <li class="dropdown-header">
                                        <strong><?php echo $_SESSION['username']; ?></strong>
                                    </li>
                                    <li>
								
                                        <a href="#modal-cp" data-toggle="modal" >
                                            <i class="fa fa-user fa-fw pull-right"></i>
                                            Quản Lý Cá Nhân
                                        </a>
                                    </li>
							<li>
                                        <a href="logout.php">
                                            <i class="fa fa-unlock fa-fw pull-right"></i>
                                           Thoát
                                        </a>
                                    </li>
                                </ul>
                            </li>
                          
                        </ul>
						
						<script>
						function pass()
						{
						var password=$('#password').val();
						var npassword=$('#npassword').val();
						var rpassword=$('#rpassword').val();
						var idpass=$('#idpass').val();
						var userpass=$('#userpass').val();
						document.getElementById("passdiv").style.display="none";
						document.getElementById("passimage").style.display="inline";
						var xmlhttp;
						if (window.XMLHttpRequest)
						  {// code for IE7+, Firefox, Chrome, Opera, Safari
						  xmlhttp=new XMLHttpRequest();
						  }
						else
						  {// code for IE6, IE5
						  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
						  }
						xmlhttp.onreadystatechange=function()
						  {
						  if (xmlhttp.readyState==4 && xmlhttp.status==200)
							{
							document.getElementById("passdiv").innerHTML=xmlhttp.responseText;
							document.getElementById("passimage").style.display="none";
							document.getElementById("passdiv").style.display="inline";
							}
						  }
						xmlhttp.open("POST","ajax/usercp.php?type=pass",true);
						xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
							xmlhttp.send("password=" + password + "&npassword=" + npassword + "&rpassword=" + rpassword + "&userpass=" + userpass + "&idpass=" + idpass);

						}
						function code()
						{
						var code=$('#code').val();
						var codepass=$('#codepass').val();
						var ncode=$('#ncode').val();
						var idcode=$('#idcode').val();
						document.getElementById("codediv").style.display="none";
						document.getElementById("codeimage").style.display="inline";
						var xmlhttp;
						if (window.XMLHttpRequest)
						  {// code for IE7+, Firefox, Chrome, Opera, Safari
						  xmlhttp=new XMLHttpRequest();
						  }
						else
						  {// code for IE6, IE5
						  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
						  }
						xmlhttp.onreadystatechange=function()
						  {
						  if (xmlhttp.readyState==4 && xmlhttp.status==200)
							{
							document.getElementById("codediv").innerHTML=xmlhttp.responseText;
							document.getElementById("codeimage").style.display="none";
							document.getElementById("codediv").style.display="inline";
							}
						  }
						xmlhttp.open("POST","ajax/usercp.php?type=code",true);
						xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
							xmlhttp.send("codepass=" + codepass + "&code=" + code + "&ncode=" + ncode + "&idcode=" + idcode);

						}
						
						
						</script>
						
						<div id="modal-cp" class="modal fade" tabindex="-1" role="dialog" aria-hidden="true">
									<div class="modal-dialog">
									<div class="modal-content">
									<div class="modal-header">
									<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
									<h3 class="modal-title"><strong>Quản Lý Cá Nhân</strong></h3>
									</div>
									<div class="modal-body">
									<div class="form-horizontal form-bordered">
									<div class="form-group">
									<div class="col-md-12">
									<a href="#modal-password" class="btn btn-effect-ripple btn-primary btn-block" data-toggle="modal">Change Password</a>
									</div>
									</div>
									<div class="form-group">
									<div class="col-md-12">
									<a href="#modal-code" class="btn btn-effect-ripple btn-primary btn-block" data-toggle="modal">Change Security Code</a>
									</div>
									</div>
									<div class="form-group">
									<div class="col-md-12">
									<a href="#modal-logs" class="btn btn-effect-ripple btn-primary btn-block" data-toggle="modal">View Logs</a>
									</div>
									</div>
									<div class="form-group">
									<div class="col-md-12">
									<a class="btn btn-effect-ripple btn-danger btn-block" data-dismiss="modal" aria-hidden="true" >Close</a>
									</div>
									</div>
									</div>
									</div>							
									</div>
									</div>
						</div>
						<div id="modal-password" class="modal fade" tabindex="-1" role="dialog" aria-hidden="true">
									<div class="modal-dialog">
									<div class="modal-content">
									<div class="modal-header">
									<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
									<h3 class="modal-title"><strong>Change Password</strong> <img src="img/jquery.easytree/loading.gif" id="passimage" style="display:none"/></h3>
									</div>
									<div class="modal-body">
									<div class="form-horizontal form-bordered">
									<div class="form-group">
									<div class="col-md-12">
									<div id="passdiv" style="display:none"></div>
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">Password</label>
									<div class="col-md-9">
									<input type="text" name="password" id="password" value="" class="form-control">
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">New Password</label>
									<div class="col-md-9">
									<input type="text" name="rpassword" id="rpassword" value="" class="form-control">
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">Repeat New Password</label>
									<div class="col-md-9">
									<input type="text" name="npassword" id="npassword" value="" class="form-control">
									</div>
									</div>
									<input type="hidden" id="userpass" name="userpass" value="<?php echo $_SESSION['username']; ?>"  />
									<input type="hidden" id="idpass" name="idpass" value="<?php echo $_SESSION['ID']; ?>"  />
									<div class="form-group">
									<div class="col-md-12">
									<button type="submit" onclick="pass()" class="btn btn-effect-ripple btn-primary btn-block">Change Password</button>
									</div>
									</div>
									<div class="form-group">
									<div class="col-md-12">
									<a class="btn btn-effect-ripple btn-danger btn-block" data-dismiss="modal" aria-hidden="true" >Back</a>
									</div>
									</div>
									</div>
									</div>							
									</div>
									</div>
						</div>
						<div id="modal-code" class="modal fade" tabindex="-1" role="dialog" aria-hidden="true">
									<div class="modal-dialog">
									<div class="modal-content">
									<div class="modal-header">
									<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
									<h3 class="modal-title"><strong>Change Security Code</strong> <img src="img/jquery.easytree/loading.gif" id="codeimage" style="display:none"/></h3>
									</div>
									<div class="modal-body">
									<div class="form-horizontal form-bordered">
									<div class="form-group">
									<div class="col-md-12">
									<div id="codediv" style="display:none"></div>
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">Security Code</label>
									<div class="col-md-9">
									<input type="text" id="code" name="code" value="" class="form-control">
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">Your Password</label>
									<div class="col-md-9">
									<input type="text" id="codepass" name="codepass" value="" class="form-control">
									</div>
									</div>
									<div class="form-group">
									<label class="col-md-3 control-label">New SCode</label>
									<div class="col-md-9">
									<input type="text" id="ncode" name="ncode" value="" class="form-control">
									</div>
									</div>
									<input type="hidden" id="idcode" name="idcode" value="<?php echo $_SESSION['ID']; ?>"  />
									<div class="form-group">
									<div class="col-md-12">
									<button type="submit" onclick="code()" class="btn btn-effect-ripple btn-primary btn-block" data-toggle="modal">Change Security Code</button>
									</div>
									</div>
									<div class="form-group">
									<div class="col-md-12">
									<a class="btn btn-effect-ripple btn-danger btn-block" data-dismiss="modal" aria-hidden="true" >Back</a>
									</div>
									</div>
									</div>
									</div>							
									</div>
									</div>
						</div>
						<div id="modal-logs" class="modal fade" tabindex="-1" role="dialog" aria-hidden="true">
									<div class="modal-dialog">
									<div class="modal-content">
									<div class="modal-header">
									<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
									<h3 class="modal-title"><strong>Logs</strong></h3>
									</div>
									<div class="modal-body">
									<div class="form-horizontal form-bordered">
									<div class="form-group">
									
									
									<ul class="nav nav-tabs nav-justified">
											<li class="active"><a href="#tab9" data-toggle="tab">Login History</a></li>
											<li><a href="#tab10" data-toggle="tab">Attacks History</a></li>
										</ul>
									 <div class="block-content tab-content">
											<div class="tab-pane active" id="tab9">
												<p>
											<table class="table table-striped">
											<tr>
												<th>IP Address</th><th>Country</th><th>Date</th>
											</tr>
											<tr>
	<?php
	$SQLGetLogs = $odb -> query("SELECT * FROM `loginlogs` WHERE `username`='{$_SESSION['username']}' ORDER BY `date` DESC LIMIT 0, 5");
	while($getInfo = $SQLGetLogs -> fetch(PDO::FETCH_ASSOC))
	{
	 $IP = $getInfo['ip'];
	 $country = $getInfo['country'];
	 $date = date("m-d-Y, h:i:s a" ,$getInfo['date']);
	 echo '<tr><td>'.htmlspecialchars($IP).'</td><td>'.$country.'</td><td>'.$date.'</td></tr>';
	}
	?>
											</tr>                                       
										</table>
												</p>
											</div>
											<div class="tab-pane" id="tab10">
												<p>
											<table class="table table-striped">
											<tr>
												<th>Host</th><th>Port</th><th>Time</th><th>Method</th><th>Date</th>
											</tr>
											<tr>
	<?php
	$SQLGetLogs = $odb -> query("SELECT * FROM `logs` WHERE user='{$_SESSION['username']}' ORDER BY `date` DESC LIMIT 0, 5");
	while($getInfo = $SQLGetLogs -> fetch(PDO::FETCH_ASSOC))
	{
	 $IP = $getInfo['ip'];
	 $port = $getInfo['port'];
	 $time = $getInfo['time'];
	 $method = $odb->query("SELECT `fullname` FROM `methods` WHERE `name` = '{$getInfo['method']}'")->fetchColumn(0);
	 $date = date("m-d-Y, h:i:s a" ,$getInfo['date']);
	 echo '<tr><td>'.htmlspecialchars($IP).'</td><td>'.$port.'</td><td>'.$time.' seconds</td><td>'.htmlspecialchars($method).'</td><td>'.$date.'</td></tr>';
	}
	?>
											</tr>                                       
										</table>
												</p>
											</div>                        
										</div>
									<div class="form-group">
									<div class="col-md-12">
									<a class="btn btn-effect-ripple btn-danger btn-block" data-dismiss="modal" aria-hidden="true" >Back</a>
									</div>
									</div>
									</div>
									</div>							
									</div>
									</div>
									</div>
						</div>
						
                       
                    </header>
ob_end_flush();
Dark.Hades viết 11:53 ngày 01/10/2018