PHP - Php Email Headers

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 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.

Hi all,

It's probably something obvious, but perhaps someone could explain to me what is going on here...

I spent a lot of time this afternoon trying to fix what seemed to be a very odd problem, which involved an image being chucked out like so:

Code: [Select]
<?php
header("Content-Type: image/png");
echo file_get_contents("http://www.example.com/some_image.png");
?>
Except the image was coming out as corrupted, ultimately because I had some white space before this snippet (foolish, I know). The reason it took me so long to diagnose the problem was because I wasn't getting PHP errors (even though they were switched on). As far as the script was concerned, it seems I wasn't sending anything before attempting to modify the headers.

After solving the problem, I put the following little bit of code together, trying to force a header error... And yet I get nothing. It all works, and I get redirected, when I'm sure I shouldn't be. I've run this on a default install of XAMPP, and a configured CentOS server, and the same thing happens on both.

If anyone can explain to me what is going on, I would be most appreciative! There are some inline comments which should help clarify what I mean.

Code: [Select]
<?php

error_reporting(E_ALL);
ini_set("display_errors","1");

?>

<p>Hello! The very existence of this text should really have resulted in the headers being sent... Shouldn't it?</p>
<p>So I'd expect to see a "Headers already sent" message... Shouldn't I?</p>

<?php

// Headers sent?
echo "<p>";
echo "Headers ";

if(!headers_sent()) {
echo "not "; // This "not" does echo out.
}
echo "sent.</p>";

// This WILL start a session (or at least, won't throw an error)
session_start();

// This redirect WILL work, and you will never see the above messages.
header("Location: redirect.php");

// What?!

?>
Thanks!

Dave

Hi
I am getting the following php error that is on all my pages and it works fine on the other pages except index.php
Code: [Select]
<?php
session_start();
include 'includes/conn_db.php';
  if (isset($_POST['submit'])) {
    
    if (empty($_POST['userName'])) {
      $u = FALSE;
      $nouser = '<font color="red" size="2" face="arial">You forgot to enter your username!</font>';
    } else {
    $u = $_POST['userName'];
    }  
    if (empty($_POST['userPassword'])) {
      $p = FALSE;
      $nopass = '<font color="red" size="2" face="arial">You forgot to enter your password!</font>';
    } else {
    $p = $_POST['userPassword'];
    } 
    $errorMessage = $nouser . "<br>" . $nopass;
    if ($u && $p) {
    $query = "SELECT * from clients WHERE email = '$u' AND pword = '$p'";
$result = mysql_query($query, $conn);
while ($row = mysql_fetch_assoc($result)){
if ($u == $row["email"] && $p == $row["pword"]) {
  $query_name = "SELECT * FROM clients WHERE email = '$u' AND pword = '$p'";
    $result_name = @mysql_query ($query_name);
    while ($row_name = mysql_fetch_assoc($result_name)){
$client_id_out = $row_name['client_id'];
    $firstname_out = $row_name['firstname'];
    $lastname_out = $row_name['lastname'];
    
    


// Create sessions
$_SESSION['client_id'] = $client_id_out;
    $_SESSION['firstname'] = $firstname_out;
    $_SESSION['lastname'] = $lastname_out;
   
    
    ob_end_clean();
    header ("Location: myaccount.php");
    exit();
    }} } } }
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
    <title></title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Style-Type" content="text/css" />
    <link href="style.css" rel="stylesheet" type="text/css" />
    <link href="layout.css" rel="stylesheet" type="text/css" />

    <script src="js/jquery-1.3.2.min.js" type="text/javascript"></script>

    <script src="js/cufon-yui.js" type="text/javascript"></script>

    <script src="js/cufon-replace.js" type="text/javascript"></script>

    <script src="js/Futura_Bk_BT_400.font.js" type="text/javascript"></script>

    <script src="js/Futura_XBlk_BT_400.font.js" type="text/javascript"></script>

    <!--[if lt IE 7]>
   <script type="text/javascript" src="js/ie_png.js"></script>
   <script type="text/javascript">
       ie_png.fix('.png');
   </script>
<![endif]-->
</head>

Thanks

Lional

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;
}
?>

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

I'm adding a login page to my website. When I go to the login page, and try to login, I keep getting the error
"Warning: Cannot modify header information - headers already sent by (output started at C:\Users\me\Desktop\xampp\htdocs\site\login.php:7) in C:\Users\me\Desktop\xampp\htdocs\site\login.php on line 38"

and I don't know why. I've looked into it, and from what I can tell its something to do with white spaces, but I cant find them.


<?php
include "./dbconnect.php";
?>
<?php
forum_connect();
?>
<?php
if(isset($_COOKIE['ID_forum'])) 
{ 
$username = $_COOKIE['ID_forum']; 
$pass = $_COOKIE['Key_forum']; 
$check = mysql_query("SELECT * FROM users WHERE username = '$username'")or die(mysql_error()); 
while($info = mysql_fetch_array( $check )) 
{ 
if ($pass != $info['password']) 
{ 
} 
else 
{ 
header("Location: main.php");
} 
} 
} 
if (isset($_POST['submit'])) { 
if(!$_POST['username'] | !$_POST['pass']) { 
die('
<h2> You did not fill in all of the fields</h2>
<p<a href="login.php">Return to login page</a>
'); 
} 
if (!get_magic_quotes_gpc()) { 
$_POST['email'] = addslashes($_POST['email']); 
} 
$check = mysql_query("SELECT * FROM users WHERE username = '".$_POST['username']."'")or die(mysql_error()); 
$check2 = mysql_num_rows($check); 
if ($check2 == 0) {
die('
<h2> That user does not exist in our database.<br/> </h2>
<p<a href="login.php">Return to login page</a>
'); 
} 
while($info = mysql_fetch_array( $check )) 
{ 
$_POST['pass'] = stripslashes($_POST['pass']); 
$info['password'] = stripslashes($info['password']); 
$_POST['pass'] = md5($_POST['pass']); 
if ($_POST['pass'] != $info['password']) { 
die('
<h2> Incorrect password, please try again</h2>
<p<a href="login.php">Return to login page</a>
'); 
} 
else 
{
 
$_POST['username'] = stripslashes($_POST['username']); 
$hour = time() + 3600;
setcookie(ID_forum, $_POST['username'], $hour);
setcookie(Key_forum, $_POST['pass'], $hour);     
header("Location: main.php"); 
} 
} 
} 
else 
{     
?> 
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post"> 
<table border="0"> 
<tr><td colspan=2><h1>Login</h1></td></tr> 
<tr><td><h2>Username:</h2></td><td> 
<input type="text" name="username" maxlength="40"> 
</td></tr> 
<tr><td><h2>Password:</h2></td><td> 
<input type="password" name="pass" maxlength="50"> </h2>
</td></tr> 
<tr><td colspan="2" align="right"> 
<input type="submit" name="submit" value="Login"> 
</td></tr> 
</table> 
</form>
<?php 
} 
?> 


Any help would be great
Thanks

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.

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.

Sorry to ask such a "newb" question, but I'm a bit fuzzy on this...

When you get a "Headers Already Sent" error, can that be caused by spaces between your HTML??   

I am having trouble getting my Log-In script to work, and I finally broke down and added Output Buffering to get things working, although a couple of senior members here scolded me in the past as basically saying it was slopping coding to need Output Buffering?!   

Here is my problematic code...
Code: [Select]
<?php
// Initialize a session.
session_start();

// Access Constants.
require_once('config/config.inc.php');
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<!-- HTML Metadata -->
<title>My Site - Log In</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description"
content="Log in to your account to access special member-only areas.">
<meta name="keywords"
content="">

<!-- Page Stylesheets -->
<link type="text/css" rel="stylesheet" href="css/main.css" />
<link type="text/css" rel="stylesheet" href="css/dropdown.css" />
<link type="text/css" rel="stylesheet" href="css/log_in.css" />
</head>

<body>
<div id="wrapper" class="clearfix">
<div id="inner">
<?php

I have session_start() at the very beginning, and no spaces between my opening PHP and HTML, so the only thing I can figure is the carriage returns within my HTML?!

Thanks,


Debbie

P.S.  Is using Output Buffering really that evil??

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?

Just a quick question.  I'm using the Live HTTP Headers add-on for Firefox that display all the HTTP headers etc.  I'm writing an article on it and want to include a screenshot of it in action.  Are there any headers that I should hide from the reader for security reasons?

Thanks for any help. 

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 All,

I am trying to use headers at the end of functions to put the user where they need to be.

header("location: register.php?user_may_exist");

I understand how they work and their qwuirks.

My issue is, in my head file, i am outputting which causes issues for the headers which come after.

I have the following in head.php

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>
		<?php 
			if(isset($currentPageTitle)){
				echo $currentPageTitle;
			}else{
				echo 'Cricket Club';
			}; 
		?>
	</title>
	<?php 
			if(isset($currentPageMeta)){
				echo "<meta name='description' content='$currentPageMeta'>";
			}else{
				echo "<meta name='description' content='All the latest from CC'>";
			}; 
		?>
	
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Is there a better way for me to achieve this?