PHP - Moved: Warning: Header May Not Contain More Than A Single Header.. Help!

I get an error stating that I cannot modify header information when I try to add a title to my login page.
Here's <?php
session_start();

require_once("includes/dbconn.php");

include("includes/htmlheader.php");

mysql_select_db(center);

$user = $_POST['username'];
$pass = $_POST['password'];

$sql = "select username, password from users";
$result = mysql_query($sql);
$row = mysql_fetch_array($result);

$isuser = $row['username'];
$ispass = $row['password'];

if(isset($_POST['submit'])){

if(($user==$isuser)&&($pass==$ispass)) {

$_SESSION['username'] = $user;

header("Location: home.php");
    }else{
    echo "Invalid Username or Password";
    }
}

   
?>


The htmlheader.php has the title string. Help is appreciated 

Hi All,

I just formatted my HD and had a WAMP setup.  I have not installed each component separately (newest versions).

When I type in a text box and press the submit button, I get:

Warning: Cannot modify header information - headers already sent by (output started at D:\Web\Apache\htdocs\projects\tms_new\functions\functions.js:304) in D:\Web\Apache\htdocs\projects\tms_new\apps\index.php on line 167

Line 304 in the functions.js file is:   </script>

Line 167 in index.php is:

 header('Location: index.php?lastname='.stripslashes($lastname));


It says I am sending header information before line 167, but there isn't any.  The .JS file only has JS code.

Can someone give me any suggestions?

Thanks everyone!!

So last night I was changing the amount of posts I wanted on my Thesis Themed Wordpress blog. I went to click the Save button within wordpress and got this message on the next page.

"Warning: Cannot modify header information - headers already sent by (output started at /home/content/50/8403650/html/wp-content/themes/thesis_18/custom/custom_functions.php:2) in /home/content/50/8403650/html/wp-includes/pluggable.php on line 934"

Now my nav menu doesn't show up and when I go to archives, it gives me the same warning. Can someone please help me with this? Any help would be appreciated.

I've added both custom_functions.php and pluggable.php as an attachment, I don't think it has anything to do with pluggable but added just in case.

Thanks for your help.
Briannyc

[attachment deleted by admin]

<?php
header('Refresh: 5; URL=http://www.miraculousmedalapostolate.com');
exit();
?>

i dont know what to do with this!
i have tried using other hosting and the code was working fine... please help me, i have been stuck on this problem for 2 days now.

i have a file connection.php, that contains functions to connect and disconnect from database.

the functions are as follows:
Code: [Select]
<?php
//connection.php file
function connect()
{
  $con = mysql_connect("localhost","abcd","123456");
  if(!$con)
    die ('Error! could not connect to data to add data');
  return $con;
}
function disconnect($con)
{
   mysql_close($con);
}

?>

I my intent is to use these functions whenever i would need to connect to database.

When i include this file, using include() or require(). I get the warning message, and the page does not redirect to the next page.

For example I have created a login page that accepts username and password. The data from this form is "processed" in a login_proc.php file, that redirects the browser to home.php or loginerror.php. But instead of working as I desire, PHP stops with a warning stating the following.
Code: [Select]
Warning: Cannot modify header information - headers already sent by (output started at /home1/mintoo/public_html/bew_system/login_proc.php:5) in /home1/mintoo/public_html/bew_system/login_proc.php on line 20

How do I avoid this warning?

This is the code in login_proc.php for your reference
Code: [Select]
<?php
//login_proc.php
include 'resources/connection.php';
$con= connect();
ob_flush();
$uname = mysql_real_escape_string(strip_tags(substr($_POST['uname'],0,30)));
$pass = mysql_real_escape_string(strip_tags(substr($_POST['pwd'],0,30)));
$query = "select userid from mintoo_db1.tbl_users where userid='$uname' and password='$pass'";
$result = mysql_query($query);
$nofrows = mysql_num_rows($result);
disconnect($con);
if($nofrows == 0)
echo '<h2>Incorrect Username or Password</h2><br/><a href="login.php">Try again</a>';
else if($nofrows == 1)
header("location: home.php");
else
echo '<h2><u> Error-001:</u>An unexpected error has occured. Please go back and try again after some time or contact system administrator</h2>';
?>


EDIT: Solved it

Made the following changes to login_proc.php
Code: [Select]
<?php
ob_start();
include 'resources/connection.php';
$con= connect();


$uname = mysql_real_escape_string(strip_tags(substr($_POST['uname'],0,30)));
$pass = mysql_real_escape_string(strip_tags(substr($_POST['pwd'],0,30)));
$query = "select userid from mintoo_db1.tbl_users where userid='$uname' and password='$pass'";

$result = mysql_query($query);
$nofrows = mysql_num_rows($result);
disconnect($con);
if($nofrows == 0)
echo '<h2>Incorrect Username or Password</h2><br/><a href="login.php">Try again</a>';
else if($nofrows == 1)
{

header("location: home.php");
 
}
else
echo '<h2><u> Error-001:</u>An unexpected error has occured. Please go back and try again after some time or contact system administrator</h2>';
ob_flush();
?>

Hello,

Im having a little trouble with this coding I need it to goto this page after an if statement but get this dreaded error

Warning: Cannot modify header information - headers already sent by (output started at /home/fightwa1/public_html/fightlivecommentaryrd1.php:15) in /home/fightwa1/public_html/fightlivecommentaryrd1.php on line 57


there are no whitespaces before or after the start and endin <?php, as previously read about.

Really struggling with this problem, if anyone can help will be much appreciated.

I am getting this error:
Warning: Cannot modify header information - headers already sent by
on my pvp.php script, this is it:
<?PHP
include('top.php');
if(!isset($_SESSION['UsersID']))
{
echo "You need to be logged into view this page.";
include('bottom.php');
exit;
}
if(isset($_POST['battleplayer']))
{
$battleplayer=$_POST['battleplayer'];
if($_POST['battlepick']=="username")
{
$Battling_Result=mysql_query("SELECT * FROM users WHERE Username='$battleplayer'");
$Battling_Rows=mysql_fetch_array($Battling_Result);
$battleplayer=$Battling_Rows['ID'];
}
elseif($_POST['battlepick']=="id")
{
$Battling_Result=mysql_query("SELECT * FROM users WHERE ID='$battleplayer'");
$Battling_Rows=mysql_fetch_array($Battling_Result);
}
if(!empty($Battling_Rows))
{
$Enemy_ID=$Battling_Rows['ID'];
$Enemy_Name=$Battling_Rows['Username'];
$Enemy_Level=$Battling_Rows['Level'];
$Enemy_HP=$Battling_Rows['HP'];
$Enemy_MHP=$Battling_Rows['Max_HP'];
$Enemy_Energy=$Battling_Rows['Energy'];
$Enemy_MEnergy=$Battling_Rows['Max_Energy'];
$Battling_Result2=mysql_query("SELECT * FROM items WHERE Owner='$battleplayer' AND Slot='1'");
$Battling_Rows2=mysql_fetch_array($Battling_Result2);
$Battling_Result3=mysql_query("SELECT * FROM items WHERE Owner='$battleplayer' AND Slot='2'");
$Battling_Rows3=mysql_fetch_array($Battling_Result3);
$Battling_Result4=mysql_query("SELECT * FROM items WHERE Owner='$battleplayer' AND Slot='3'");
$Battling_Rows4=mysql_fetch_array($Battling_Result4);
$Battling_Result5=mysql_query("SELECT * FROM items WHERE Owner='$battleplayer' AND Slot='4'");
$Battling_Rows5=mysql_fetch_array($Battling_Result5);
$Battling_Result6=mysql_query("SELECT * FROM items WHERE Owner='$battleplayer' AND Slot='5'");
$Battling_Rows6=mysql_fetch_array($Battling_Result6);
$Enemy_Attack1=$Battling_Rows2['Name'];
$Enemy_Attack2=$Battling_Rows3['Name'];
$Enemy_Attack3=$Battling_Rows4['Name'];
$Enemy_Attack4=$Battling_Rows5['Name'];
$Enemy_Attack5=$Battling_Rows6['Name'];
$Enemy_Power=$Battling_Rows['Power'];
$Enemy_Defense=$Battling_Rows['Defense'];
$Enemy_Magic=$Battling_Rows['Magic'];
$Enemy_Race=$Battling_Rows['Race'];
$Enemy_Class=$Battling_Rows['Class'];
$Battle_Start="No";
$User_ID=$_SESSION['UsersID'];
mysql_query("DELETE from battle_info WHERE User_ID='$User_ID'");
mysql_query("INSERT into battle_info(Enemy_ID, Enemy_Name, Enemy_Level, Enemy_HP, Enemy_MHP, Enemy_Energy, Enemy_MEnergy, Enemy_Attack1, Enemy_Attack2, Enemy_Attack3, Enemy_Attack4, Enemy_Attack5, Enemy_Power, Enemy_Defense, Enemy_Magic, Enemy_Race, Enemy_Class, Battle_Start, User_ID) VALUES('$Enemy_ID', '$Enemy_Name', '$Enemy_Level', '$Enemy_HP', '$Enemy_MHP', '$Enemy_Energy', '$Enemy_MEnergy', '$Enemy_Attack1', '$Enemy_Attack2', '$Enemy_Attack3', '$Enemy_Attack4', '$Enemy_Attack5', '$Enemy_Power', '$Enemy_Defense', '$Enemy_Magic', '$Enemy_Race', '$Enemy_Class', '$Battle_Start', '$User_ID')") or die(mysql_error());
header('Location: battle.php');
}
else
{
echo "This user does not exist.<br />";
echo "Enter the Username/ID of the person you want to battle below:";
echo "<br /><form method='POST'><input type='text' name='battleplayer'><select name='battlepick'><option value='username'>Username</option><option value='id'>ID</option></select>";
echo "<br /><input type='submit' name='Submit' id='Submit' value='Submit' onclick='this.disabled=true; this.form.submit;'>";
echo "</form>";
}
}
else
{
echo "Enter the Username/ID of the person you want to battle below:";
echo "<br /><form method='POST'><input type='text' name='battleplayer'><select name='battlepick'><option value='username'>Username</option><option value='id'>ID</option></select>";
echo "<br /><input type='submit' name='Submit' id='Submit' value='Submit' onclick='this.disabled=true; this.form.submit;'>";
echo "</form>";
}
include('bottom.php');
?>
and this is my top.php script:
<?PHP
include('connect.php');
$ID = $_SESSION['UsersID'];
$ID = mysql_real_escape_string($ID);
if (!isset($_SESSION['UsersID']))
{
echo "
<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"
\"http://www.w3.org/TR/html4/loose.dtd\">
<font face='verdana'>
<head>
<link rel='stylesheet' type='text/css' href='style.css'>
</style>
</head>
<title>Shadow of the Eternal - Text Based RPG</title>
<body>
<div id='banner'><a href='index.php'><img src='banner.png'></a></div>
<div id='quicklinks'>Test</div>
<div id='leftmenu'>
<ul>
<li>Main
<ul>
<li><a href='index.php'>Home</a></li>
<li><a href='login.php'>Login</a></li>
<li><a href='signup.php'>Sign Up</a></li>
</ul>
</li>
</ul></div>
<div id='content'>
</font>";
}
else
{
echo "
<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"
\"http://www.w3.org/TR/html4/loose.dtd\">
<font face='verdana'>
<head>
<link rel='stylesheet' type='text/css' href='style.css'>
</style>
</head>
<title>Shadow of the Eternal - Text Based RPG</title>
<body>
<div id='banner'><a href='index.php'><img src='banner.png'></a></div>
<div id='quicklinks'>Test</div>
<div id='leftmenu'>
<ul>
<li>CryptoWare
<ul>
<li><a href='http://furiousflash.com'>Furious Flash</a></li>
<li><a href='http://crypto-ware.com'>CryptoWare</a></li>
</ul>
</li>
<li>Main
<ul>
<li><a href='index.php'>Home</a></li>
<li><a href='viewcomments.php'>News Comments</a></li>
<li><a href='logout.php'>Logout</a></li>
<li><a href='http://furiousflash.com/forum'>Forums</a></li>
</ul>
</li>
</ul></div>
<div id='content'>
</font>";
}
?>
And just in case this is my connect.php script:
<?PHP
mysql_connect('localhost','*****','*****');
mysql_select_db('*****');
session_start();
?>
Any idea why?

I am having a problem with my login page when I set cookies I get this error.

Quote

Warning: Cannot modify header information - headers already sent by (output started at /login.php:10) in /loginform.php on line 66

Warning: Cannot modify header information - headers already sent by (output started at /login.php:10) in /loginform.php on line 67

Warning: Cannot modify header information - headers already sent by (output started at /login.php:10) in /loginform.php on line 68

Warning: Cannot modify header information - headers already sent by (output started at /login.php:10) in loginform.php on line 72



I do have ob_start() at the beginning and ob_flush() and the end but i still get the error

<?phpinclude('config.php');ob_start();@session_start();if (!isset($_POST['login'])) {?><form method="post" action="<?php $_SERVER['PHP_SELF'] ?>"> <fieldset> <legend>Login</legend> <table> <tr> <td>Email </td> <td><input type="text" name="email" /></td> </tr> <tr> <td>Password </td> <td><input type="password" name="password" /></td> </tr> <tr> <td><input type="submit" name="login" value="Login" /></td> </tr> <tr> <td><a href="<?=$siteurl?>/register.php">Register</a></td> </tr> </table> </fieldset></form><?php}else{ //Declare some variables $email = secure($_POST['email']); $password = secure($_POST['password']); //Check if the form is filled out if (!$email || !$password) { echo 'Please fill out the form completely'; echo '<a href="'. $siteurl .'/login.php">Go Back</a>'; } else { $user = mysql_query("SELECT * FROM `users` WHERE email = '$email'"); if (! mysql_num_rows($user)) { echo 'That user doe not exist'; } else { //Encrypt the password $encpass = sha1($password . $salt); //Find the user            $superquery = mysql_query("SELECT * FROM `users` WHERE email = '$email' AND password = '$encpass'");                        if (mysql_num_rows($superquery) == 1) {            //If the user is found, set the cookies                            setcookie("username", $email, 0);                setcookie("password", $encpass, 0);                setcookie("is_logged_in", true, 0);                //send the user to the home page header("Location: " . $siteurl . "members.php");          }           else           {           echo 'Password was incorrect. Please try again.';        } } }}ob_flush();?>()

what am i doing wrong?

This topic has been moved to JavaScript Help.

http://www.phpfreaks.com/forums/index.php?topic=321255.0

This topic has been moved to HTML Help.

http://www.phpfreaks.com/forums/index.php?topic=321605.0

This topic has been moved to mod_rewrite.

http://www.phpfreaks.com/forums/index.php?topic=320768.0

This topic has been moved to Third Party PHP Scripts.

http://www.phpfreaks.com/forums/index.php?topic=355345.0

This topic has been moved to HTML Help.

http://www.phpfreaks.com/forums/index.php?topic=328141.0

Hi there,

I have a form which displays a "successful" message if the form is completed correctly. However, I want the form to go to another url if it is successful. I have tried this, but I get the "headers already sent..." message


// Add New Subscriber Success Message
$successMsg = header('Location: http://www.example.com/');


is there another way to forward onto another page?

Thanks

Hi everyone,
 
I have a login area, and i also have set up for me is a view page... the view page is each user's sort of profile, it gets id and displays relevant content.

i was wondering if i could get the id or post rather through a re-direct on log in?

for example user logs in with username and password,

user is re-directed to the view page like this:

header( "refresh:5;url=view00=id.php " );
echo '<h1>You will be re-directed in 5 seconds...</h1>';

user is taken to view page where they can edit bit on it.

So far though i'm getting page not found error? first of all is this possible? if not whats the correct way/better way?

Thanks