PHP - Headers Already Sent Problem

hello,

I'm using this code:

<?php

  if (isset($_REQUEST['email']))
  {
 $name = $_REQUEST['name'] ;
 $email = $_REQUEST['email'] ;
 $code = $_REQUEST['code'] ;
 $from = $email;
    mail("email@email.com", "Winner request id: $name - code: $code",
    "From:" . $from);
    }
  $headers = "From:" . $from;
  header('Location: index.php?done');
  ?>

And I'm getting:

Code: [Select]
Warning: Cannot modify header information - headers already sent by (output started at /home/site/public_html/config.php:10) in /home/site/public_html/send.php on line 13
This worked before.

Many thanks

Okay, I've read all the rules for Headers...still can't it to execute properly.  At the bottom is my code.  I basically want to check the database, see if the user is already registered, and redirect as appropriate (there is no HTML on my page, no info sent to the browser).  My server doesn't send any error messages.  All I get are white screens. 

Now, if I do the headers_sent()...it tells me that it's sent right after the initial connection with the database. 

The ONLY way I can get it to redirect, is if I put
<?php
header("location:index.php?msg=3");
?>
 at hte very top, but then I can't evalute...which doesn't help me much.

Here is the code (obviously, I have more...but it's sending headers in these lines)


<?php
$connection = mysql_connect("localhost","####","#####");

if (!$connection){
echo mysql_errno().": ".mysql_error()."<br/>";
exit;
}

if(!mysql_select_db("prixaurora")){
echo("Database not found<br>");
}

I am trying to do a page redirect using the header() function. I am aware that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP. and also that reading code with include, or require, functions, or another file access function, can create spaces or empty lines that are output before header() is called. thus causing a redirect failure. I have therefore used this output control function (ob_start(); ob_implicit_flush()  right at the top of my page. I am then creating the redirect like this as part of my login() function:

if($user_role == ADMIN_LEVEL || $user_role == EDITOR_LEVEL)
{
		if (!headers_sent($filename, $linenum)) 
		{
				return header("Location:http://mysite.com/dashboard.php");
				exit;
		}
		else
		{
				echo "Headers already sent in $filename on line $linenum\n" .
				  "Cannot redirect\n";
				exit;
		}
}

Unfortunately I am still getting this error:

Headers already sent in /home/steveoje/public_html/login.php on line 1 Cannot redirect

And this is what I have at the top of the login.php page:

<?php ob_start(); 
ob_implicit_flush(); 
require_once 'includes/config.php';
if(isset($_POST['submit']))
{
	login($_POST['username'], $_POST['password']);	
}
require_once "includes/header.inc.php" ?>
//other html content

So why would the redirect fail in this instance?   Thanks.
Edited by terungwa, 28 September 2014 - 05:28 AM.

My error:

Code: [Select]
Warning: Cannot modify header information - headers already sent by (output started at /www/zxq.net/w/e/b/webaskius/htdocs/index.php:7) in /www/zxq.net/w/e/b/webaskius/htdocs/functions.php on line 6

Now, I can't quite figure out why it's doing this. The section of code that is causing this problem is above any HTML tags, at the very beginning of the file.


<?php 
include('functions.php'); 
?>
<link href="style.css" rel="stylesheet" type="TEXT/CSS">
<img src="logo.png" border="0">
<div id="maincontent">


As you can see, the functions that cause this error are at the VERY beginning of my file. This is where they are called within index.php:


if(mysql_num_rows($query_verify_login) > 0)
{
        create_cookie(10000, 'user', $username);
redirect('index.php');
}
else
{
       echo 'Woops! You\'ve entered in the wrong username and password combination!';
}


And finally, my functions:


<?php

//our cookie creator function
function create_cookie($time, $name, $data)
{
setcookie($name, $data, time()+$time);
}

function redirect($url)
{
header('Location: '. $url .'');
}

function get_replies($id)
{
//set query to find posts that match our id
$query_get_replies = mysql_query("SELECT * FROM replies WHERE to = {$id}");

return mysql_num_rows($query_get_replies);
}

?>

I have a form as a php include and it's giving me this error:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/altimusw/public_html/www.csmsolution.com/register.php:6) in /home/altimusw/public_html/www.csmsolution.com/core.php on line 17

Here is the main page that includes the php include:

<!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>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>CSM Solution </title>
<style type="text/css">
<!--
#Layer1 {
position:absolute;
left:100px;
top:70px;
width:800;
height:62px;
z-index:1;
}
.style1 {
font-family: Arial, Helvetica, sans-serif;
color: #535959;
font-size: 12px;
}
-->
</style>
</head>
<body>
<div id="Layer1">
  <table width="800" border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td height="97"><img src="images/header.jpg" width="800" height="59" border="0" usemap="#Map" /><br />
      <img src="images/navbar.jpg" width="800" height="38" border="0" usemap="#Map2" />
      <map name="Map2" id="Map2">
        <area shape="rect" coords="506,1,552,26" href="contact.php" /><area shape="rect" coords="459,1,502,26" href="form.php" /><area shape="rect" coords="396,-1,455,25" href="login.php" />
        <area shape="rect" coords="357,0,393,26" href="index.php" />
      </map>
      </td>
    </tr>
    <tr>
      <td><img src="images/welcome_img.jpg" width="131" height="21" /></td>
    </tr>
    <tr>
      <td><?php include("form.php"); ?></td>
    </tr>
    <tr>
      <td><img src="images/placeholderclouds_bottem.jpg" width="800" height="60" /></td>
    </tr>
  </table>
</div>
</body>
</html>

Here is the Core.php the error is referring to:

<?php
//CSM Solution Core. Rahul Parkar 2010
$_config = array();
$_config['db_type'] = "mysql";
$_config['db_server'] = "localhost";
$_config['db_username'] = "altimusw_csm";
$_config['db_password'] = ']17=rXh7tJ0~';
$_config['db_database'] = "altimusw_csm";
$_config['db_tbl_prefix'] = '';
$_config['user_table'] = "customers";
$_config['user_username'] = "username";
$_config['user_password'] = "password";
$_config['user_active'] = "approved";
$_config['user_role1'] = "prirole";
$_config['user_role2'] = "secrole";
$_config['pass_hash_func'] = "SHA1";
session_start();

function fetch_row($query)
{
        build_connection($db);
        sql_exec($db, $query, $result);
        sql_fetchone($result, $row);
        finish_connection($db);
        return $row;
}
 
function build_connection(&$db)
{
global $_config;
if ($_config['db_type'] == "mysql")
{
$db = mysql_connect($_config['db_server'], $_config['db_username'], $_config['db_password']) or die(mysql_error());
mysql_select_db($_config['db_database'], $db) or die(mysql_error());
}
}
 
function sql_exec(&$db, $query, &$result)
{
        global $_config;
        if ($_config['db_type'] == "mysql")
              $result = mysql_query($query, $db) or die(mysql_error() . "/$query");
}
 
function sql_fetchone(&$result, &$row)
{
global $_config;
      if ($_config['db_type'] == "mysql")
      {
              $row = mysql_fetch_assoc($result);
              @mysql_free_result($result);
      }
}

function sql_do(&$db, $query)
{
global $_config;
sql_exec($db, $query, $noclue);
finish_connection($db);
}

function finish_result(&$result)
{
global $_config;
if ($_config['db_type'] == "mysql")
@mysql_free_result($result);
}

function finish_connection(&$db)
{
global $_config;
if ($_config['db_type'] == 'mysql')
mysql_close($db);
}
 
function check_auth($username, $password)
{
global $_config;
      $row = fetch_row("SELECT `" . $_config['user_active'] . "`, `" . $_config['user_password'] . "`, " . $_config['pass_hash_func'] . "('" . $password . "') AS `passcheck`, `fname`, `lname` FROM `" . $_config['user_table'] . "` WHERE `" . $_config['user_username'] . "`='" . $username . "' LIMIT 1");
      if (!$row[$_config['user_active']]) { return -1; }
      else
      {
              if ($row[$_config['user_active']] != 1) { return -2; }
              else if ($row[$_config['user_password']] == $row['passcheck'])
              {
                      $_SESSION['username'] = $username;
                      $_SESSION['fname'] = $row['fname'];
  $_SESSION['lname'] = $row['lname'];
                      return 1;
              }
              else
              {
                      return -1;
              }
      }
}
 
function load_access()
{
global $_config;
        if ($_SESSION['username'])
        {
                $row = fetch_row("SELECT `" . $_config['user_role1'] . "` FROM `" . $_config['user_table'] . "` WHERE `" . $_config['user_username'] . "`='" . $_SESSION['username'] . "' LIMIT 1");
                $role1 = $row[$_config['user_role1']];
                $_SESSION['role1'] = $role1;
        }
        else
        {
                return -1;
        }
}

function has_level()
{
for ($i = 0; $i < func_num_args(); $i++)
{
if (func_get_arg($i) == $_SESSION['role1']) { return 1; }
}
return 0;
}
?>

Hi when I am using the following code


line 45: setcookie("username", $user, $Day);

line 48: setcookie("games", $cookiename, $Day);   



I am getting an error like this

Warning: Cannot modify header information - headers already sent by (output started at /export/home/ua/games/gamescripts/login_backend.php:7) in /export/home/ua/games/gamescripts/login_backend.php on line 45

Warning: Cannot modify header information - headers already sent by (output started at /export/home/ua/games/gamescripts/login_backend.php:7) in /export/home/ua/games/gamescripts/login_backend.php on line 48


can anyone please help me out. Thanks in advance

Hi Guys   I have recently been looking into implementing browser caching after reading this: https://developers.g...ctices/caching    There are a few things in that google article that don't make much sense to me so I'm hoping someone can clarify.   Firstly Question   The document says:   " we recommend that you configure your web server to explicitly set caching headers and apply them to all cacheable static resources"   This implies you can set caching headers for just some resources. How would you do this? Lets assume I only wanted to set caching headers for a file styles.css - would I need to output headers within the CSS file and then change the extension to .php? e.g.

<link rel="stylesheet" href="styles.php"/>

Second question   Etags have me very confused. How would you set etag headers for specific files and then generally? And if you set the etag in the header of the main php page does that mean everything gets cached?     Any help someone can provide would be very, very welcome!   Drongo

I keep getting the following error and its frustrating the hell out of me, supposedly to do with whitespace but i see no problems in my code.

Error:

Warning: Cannot modify header information - headers already sent by (output started at /home/robwdri1/public_html/bsddesigns.co.uk/eventline/carddetails.php:18) in /home/robwdri1/public_html/bsddesigns.co.uk/eventline/carddetails.php on line 120

Code:

Code: [Select]
<?php
// Date from form put into variables 
$cardnumber = $_POST['cardnumber'];
$holdersname = $_POST['holdersname'];
$expirydate = $_POST['expirydate'];

// Card Check Function
function LuhnCheck($cardnumber)
{
    $sum = 0;
    $alt = false;
    for($i = strlen($cardnumber) - 1; $i >= 0; $i--) 
    {
        if($alt)
        {
           $temp = $cardnumber[$i];
           $temp *= 2;
           $cardnumber[$i] = ($temp > 9) ? $temp = $temp - 9 : $temp;
        }
        $sum += $cardnumber[$i];
        $alt = !$alt;
    }
    return $sum % 10 == 0;
} 

// Check if works

if (!empty($cardnumber))
{
if (LuhnCheck($cardnumber))
{
header("location: confirmation.php");
}
else
{
echo '<font color="red">Error, wrong card details!</font>';
}
}
?>
Any help please.

ok i read the header part but i sure i did it rite but its givong me those erros

Code: [Select]
<?php
session_start();
$username = $_SESSION['username'];
?>
<?php

require "scripts/connect.php";

if($_POST['submitbtn']){

$body = mysql_real_escape_string($_POST['area1']);

if($body){

$query = mysql_query("UPDATE history SET body ='$body'");
echo $msg = "UPDATED GOOD";
header('location: http://www.rbrhslsp.org/rbrhsadmins/edithistory');

}else
    $msg = "Please fill in the body";
}
mysql_close();
?>
<?php

require "scripts/connect.php";

$query = mysql_query("SELECT * FROM history");
$rows = mysql_fetch_assoc($query);

$body = stripslashes($rows['body']);

mysql_close();
?>
<?php
require "header.php";
?>
<?php if ($username){?>

<div id="leftContent">
<h4>
    Your page
  </h4>
<?php echo $msg;?>
<form action='edithistory' method='post'>
  <textarea style="height: 100px; width:490px;" name="area1" cols="58"><?php echo $body;?></textarea>
<input type='submit' name='submitbtn' value='Submit' />
</form>

</div>

Simple question. How do I redirect the header location on a session page.  I thought I could go a different direction, but now I'm back to this one.
I tried just adding header("Location: newpage.php") at the end of a query insert, but it gave me the warning that it can't modify the head. But I need the page to redirect after the query is done.

Thoughts?

Hi !

I am currently trying to develop a PHP application in which my server downloads a file and the user can do the same almost simultaneously. I already think about the problem "If the user downloads fastly than the server...", but it's not a problem at this moment.
To do so, I used the header and readfile functions of php. Here is my code :

Code: [Select]
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="'.$data['name'].'";');
header('Content-Transfer-Encoding: binary');
header('Content-Length: '.$data['size']);
readfile($remoteFile);

I must to use the Content-length header to set the proper size of the file and not the size that is downloaded when the user clicks on the link. However, after some seconds or minutes, download is stopped and I need to restart...
If you think about a solution, even if it didn't use the header(); function, please tell me.

Thank you in advance...

Hi; I want to get the response headers using ob_get_contents ?   For example using file_get_contents, it is easy by accessing the variable $http_response_header like that :

<?php
$content = file_get_contents($url);
print_r($http_response_header);
?>

But how to do that using ob_get_contents without a file_get_contents ? something like for example :

<?php
ob_start();
include($path_to_script_here);
$string = ob_get_contents();
// Access the headers here
ob_end_clean();
?>

Thank you
Edited by Dareros, 07 October 2014 - 06:20 PM.

Hi I have coded a form, and dependant upon the result I would like to re-direct to a different page. The problem is I am getting the "headers already sent" message..Is there a way around this, I can't use JS re-direction because of accessibility.

E.G:

<?php
//Do stuff with form data
if($result = y){
header(Location: "mysite.php/thankyou.php");
}
else{
header(Location: "mysite.php/error.php");
}
?>

In-fact whilst typing this I have an idea, why not do all of this at the top of the page before headers are sent? I'll go ahead and try it now, in the meantime if anybody knows how or if headers can be sent after output please let me know thanks.

I have an email generated from PHP but it's getting placed in gmails spam folder.  Any idea how to get rid of my old domain from being displayed?  Is this something I do in php or in ubuntu command line?  If I have to change something in ubuntu, how do I edit the olddomainname.

Here are the headers...

Delivered-To: myname@gmail.com
Received: by 10.204.7.18 with SMTP id b18cs39080bkb;
        Fri, 26 Aug 2011 10:18:41 -0700 (PDT)
Received: by 10.90.21.11 with SMTP id 11mr1399661agu.42.1314379120253;
        Fri, 26 Aug 2011 10:18:40 -0700 (PDT)
Return-Path: <www-data@mynewdomain.com>
Received: from olddomain.com ([173.0.59.100])
        by mx.google.com with ESMTP id d18si2778913anm.121.2011.08.26.10.18.38;
        Fri, 26 Aug 2011 10:18:39 -0700 (PDT)
Received-SPF: pass (google.com: domain of www-data@mynewdomain.com designates 173.0.59.100 as permitted sender) client-ip=173.0.59.100;
Authentication-Results: mx.google.com; spf=pass (google.com: domain of www-data@mynewdomain.com designates 173.0.59.100 as permitted sender) smtp.mail=www-data@mynewdomain.com
Received: by olddomain.com (Postfix, from userid 33)
   id 339452F41206; Fri, 26 Aug 2011 13:18:31 -0400 (EDT)
To: myname@gmail.com
Subject: Closed Beta Invitation from My Name
From: mynewdomain <contact@mynewdomain.com>
Reply-To: ***** <contact@*****.com>
MIME-Version: 1.0
Content-Type: text/html; charset=ISO-8859-1
Message-Id: <20110826171831.339452F41206@*****.com>
Date: Fri, 26 Aug 2011 13:18:31 -0400 (EDT)