PHP - Cannot Modify Header Information - Headers Already Sent

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.

Hey guys I am getting a Headers error that I havent been able to get rid of for the past 3 hours.

I would really appreciate some help.





<?php
mysql_connect("localhost", "", "")or die("cannot connect");
mysql_select_db("test")or die("cannot select DB");
$tbl_name="test_mysql";
$sql="SELECT * FROM $tbl_name";
$result=mysql_query($sql);
$count=mysql_num_rows($result);
?>


    




<form name="form1" method="post" action="">
<tr>
<td>
<table width="100%" border="0" cellspacing="1" cellpadding="0">

<tr>
<td align="center"><strong>Row</strong></td>
<td align="center"><strong>Month - Date</strong></td>
<td align="center"><strong>Message</strong></td>
<td align="center"><strong>Title</strong></td>
<td align="center"><strong>Icon</strong></td>

</tr>
<?php
while($rows=mysql_fetch_array($result)){
?>
<tr>
<td align="center"><?php $id[]=$rows['id']; ?><?php echo $rows['id']; ?></td>
<td align="center"><input style="border: 1px solid #C3C3C3;height: 20px;" name="month[]" MAXLENGTH="3" size="3" type="text" id="month" value="<?php echo $rows['month']; ?>">
                   <input style="border: 1px solid #C3C3C3;height: 20px;" name="date[]" MAXLENGTH="2" size="2" type="text" id="date" value="<?php echo $rows['date']; ?>">
</td>
<td align="center"><input style="border: 1px solid #C3C3C3;height: 20px;" name="message[]" size="70" type="text" id="message" value="<?php echo $rows['message']; ?>"></td>
<td align="center"><input style="border: 1px solid #C3C3C3;height: 20px;" name="title[]"  size="70"  type="text" id="title" value="<?php echo $rows['title']; ?>"></td>
<td align="center">
    <select name="test[]" style="display:block; width:200px" class="mydds">
      <option value="icon_phone.gif" title="icon/icon_phone.gif">Phone</option>
      <option value="icon_sales.gif" title="icon/icon_sales.gif">Graph</option>
    </select> 
</td>
</tr>

<?php
}
?>
<tr>
<td colspan="4" align="center"><br><input type="submit" name="Submit" value="Submit"></td>
</tr>
</table>
</td>
</tr>
</form>

<?php
if (isset($_POST['Submit'])) { 
for($i=0;$i<$count;$i++){
$month = $_POST['month'];
$date = $_POST['date'];
$message = $_POST['message'];
$title = $_POST['title'];
$monthday = $month[$i]."<br>".$date[$i];
$sql1="UPDATE $tbl_name SET monthday='$monthday', month='$month[$i]', date='$date[$i]', message='" . mysql_real_escape_string($message[$i]) . "', title='" . mysql_real_escape_string($title[$i]) . "' WHERE id='$id[$i]'";
$result1 = mysql_query($sql1);
} 
header("location:update2.php");
}
?>

Please

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?

Hi Everyone

I am having a few issues with my website. I have developed in on my xampp local host and it works ok but when I upload the files and try to renew a membership using stripe I get the following messages.

Warning: session_start(): Cannot start session when headers already sent in /customers/a/d/f/mywebsite.co.uk/httpd.www/mywebsite/inc/settings.php on line 2 

Warning: Cannot modify header information - headers already sent by (output started at /customers/a/d/f/mywebsite.co.uk/httpd.www/mywebsite/procedures/payments/charge.php:1) in /customers/a/d/f/mywebsite.co.uk/httpd.www/mywebsite/procedures/payments/charge.php on line 141

I have some includes that appear on every page. This is the bootstrap.php file. This file holds the settings.php which connects to my database and other function files.

In this settings page I call the session_start() php function and then connect to my database.

I call the bootstrap.php file on every page to there for call the session_start() on every page.

I am using sessions alot so is this the right thing to do?

I have attached the renew_membership payment page which holds the form. The user fills out the payment page and the form data gets sent to a script called charge.php which uses the stripe objects to make the payment. I then want to do a redirect to the paymentSuccess.php page to output to the user that the payment was made successfully. This is where the issues arrise. I have split the charge file into 3 screen shots so it is more readable.

Hope someone can help me.

Thanks a lot

David

 

 

 

 

 

 

 

 

 

 

 

 

Edited April 26 by Irish_Dave

Hey guys im getting the error Warning: Cannot modify header information - headers already sent by (output started at /home/kylegray/public_html/include/authenticate.php:12) in /home/kylegray/public_html/home.php on line 7

Any idea why this is coming up. I think its something to to with me setting the cookie setcookie("un", $id); but im not sure.

home.php
Code: [Select]
<?
include("include/config.php");
//$_SESSION["backpage"]=$_SERVER['PHP_SELF'];
if($_SESSION["client_log"]!="true"){
session_unregister("MemberArea");
header("Location: index.php?redirect=".basename($_SERVER['PHP_SELF']));
exit();
}
?>



authenticate.php

Code: [Select]
<?php 
include("include/required.php");
include("include/pagedetails.php");
include_once("include/authenticate.php"); 
$tblName = $tbluser;
$id=$_SESSION["id"];
setcookie("un", $id);
$ImgPath="$CatImage/";
$ImgPathsing="$SingUPImage/";
?>

i Have a php code...

Code: [Select]
<?php
session_start();
if(@$_SESSION['ls']!=="loggedin" ) 
{
   header('Location: login.php');    die (" ");
}
if($_GET['via']=="pre_pass")
{
$prepass=$_POST['currentpassword'];
$newpass=$_POST['newpass'];
$renewpass=$_POST['renewpass'];
/*$answer=$_POST['answer'];
&newpassword=$_POST['newpassword'];
*/
if($prepass!=NULL && $newpass!=NULL && $renewpass!=NULL )
{
if(strlen($prepass)==0 || strlen($newpass)==0 || strlen($renewpass)==0)
{
session_start();
$_SESSION['status']="Please fill out all the fields";
header('location:change_password.php?via=previous_password');
die(" ");

}
if(strlen($prepass)<6 || strlen($newpass)<6 || strlen($renewpass)<6)
{
session_start();
$_SESSION['status']="All fields must have atleast 6 characters";
header('location:change_password.php?via=previous_password');
die(" ");

}

if(strcmp($newpass, $renewpass)!=0 && strlen($prepass)>=6 && strlen($newpass)>=6 && strlen($renewpass)>=6 )
{
session_start();
$_SESSION['status']="New password does not match with each other";
header('location:change_password.php?via=previous_password');
die(" ");

}
if(strcmp($prepass, $newpass)==0)
{
session_start();
$_SESSION['status']="New password and Previous Password must be different";
header('location:change_password.php?via=previous_password');
die(" ");

}

mysql_connect ("localhost:3306", "feadmin1","lycosanmamba" ) or die ('Error connecting database'); 
mysql_select_db ("fe_user_info");




$reguserpassword = stripslashes($prepass);
$reguserpassword = mysql_real_escape_string($reguserpassword);
$newpass = stripslashes($newpass);
$newpass = mysql_real_escape_string($newpass);

$sql = "select * from user_info where id='$_SESSION[id]' and password='$reguserpassword'"; 
$res=mysql_query($sql);
$count=mysql_num_rows($res);
if($count=='1')
{
$query= "UPDATE user_info SET password='".$newpass."' WHERE id='$_SESSION[id]'";
mysql_query($query);
session_start();
$_SESSION['status']="Password Successfully Changed";
$_SESSION['mail']="positive";
include("mail/pasword_change_verify_mail.php");

header('location:change_password.php?via=previous_password');
die(" ");

}

if($count!='1')
{
session_start();
$_SESSION['status']="Password you entered does not match with our records";
header('location:change_password.php?via=previous_password');
die(" ");
}
}
}
if($_GET['via']=="sec_ques")
{
$answer=$_POST['answer'];
$newpassword=$_POST['newpassword'];
if($answer!=NULL && $newpassword!=NULL)
{
include('db_connectivity.php');

$sql2 = "select * from user_info where id='$_SESSION[id]' and security_answer='$answer'"; 
$res2=mysql_query($sql2);
$count2=mysql_num_rows($res2);
if(strlen($newpassword)<6)
{
session_start();
$_SESSION['status']="Password must have atleast 6 characters";
header('location:change_password.php?via=security_question');
die(" ");
}
if($count2=='1')
{include('db_connectivity.php');

$newpassword = stripslashes($newpassword);
$newpassword = mysql_real_escape_string($newpassword);
$query= "UPDATE user_info SET password='".$newpassword."' WHERE id='$_SESSION[id]'";
mysql_query($query);
session_start();
$_SESSION['status']="Password Successfully Changed";
$_SESSION['mail']="positive";
include("mail/pasword_change_verify_mail.php");
header('location:change_password.php?via=security_question');
die(" ");

}
else
{
session_start();
$_SESSION['status']="Answer to this security question is incorrect";
header('location:change_password.php?via=security_question');
die(" ");

}

}
}
?>


but when i run this code it shows me the error..

Warning: Cannot modify header information - headers already sent by (output started at C:.................................:2) in C:\...............................\verify_change_password.php on line 118

CODE BETWEEN LINE 110-120 is

Code: [Select]
$newpassword = mysql_real_escape_string($newpassword);
$query= "UPDATE user_info SET password='".$newpassword."' WHERE id='$_SESSION[id]'";
mysql_query($query);
session_start();
$_SESSION['status']="Password Successfully Changed";
$_SESSION['mail']="positive";
include("mail/pasword_change_verify_mail.php");
header('location:change_password.php?via=security_question');
die(" ");

}
and code of tp 5 line is :

Code: [Select]
<?php
session_start();
if(@$_SESSION['ls']!=="loggedin" ) 
{
   header('Location: login.php');    die (" ");
}

i have problem when adding a subject it got two subject that need to be selected by teacher , management sub and DBMS sub..  said Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\PhpProject3\navhead_user.php:57) in C:\xampp\htdocs\PhpProject3\teacher_add_subject.php on line 104.. when i select one of them it appear that error.. but when i select DBMS it inserted the subject but with error.. let say 1st i selecting management as the subject, it occur error but after refresh the page it appear in the list of the teacher subject then i add another subject DBMS subject and it occur error but the management subject is dissappear from the teach subject list.. but i try to add the management subject again it said it existed but not listed.. but in my database it inside there already only the data not appear..   navhead_user.php

<div class="row-fluid">
    <div class="span12">


        <div class="navbar navbar-fixed-top navbar-inverse">
            <div class="navbar-inner">
                <div class="container">

                    <!-- .btn-navbar is used as the toggle for collapsed navbar content -->
                    <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse">
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                        <span class="icon-bar"></span>
                    </a>

                    <!-- Be sure to leave the brand out there if you want it shown -->


                    <!-- Everything you want hidden at 940px or less, place within here -->



                    <div class="nav-collapse collapse">
                        <!-- .nav, .navbar-search, .navbar-form, etc -->
                       <i class="icon-facebook-sign icon-large" id="color_white"></i>
                        <i class="icon-twitter icon-large" id="color_white"></i>
                        <i class="icon-google-plus icon-large" id="color_white"></i>
                        <i class="icon-github-alt icon-large" id="color_white"></i>
                        <i class="icon-linkedin-sign icon-large" id="color_white"></i>
                        <div class="pull-right">
                            <form class="navbar-search pull-left">
                                
                                <i class="icon-search icon-large" id="color_white"></i>
                                <input type="text" class="search-query" placeholder="Search">
                            </form>
                        </div>

                        <!-- end collapse -->
                    </div>

                </div>
            </div>
        </div>
        <div class="hero-unit-header">
            <div class="container">

                <div class="row-fluid">
                    <div class="span12">
                        <div class="row-fluid">
                            <div class="span6">
                             <img src="admin/images/head.png">

                            </div>
                            <div class="span6">
                                <div class="pull-right">
                                    <!--- login button -->							
                                  <?php 
                                    $student_query=mysql_query("select * from teacher where teacher_id='$session_id'")or die(mysql_error());
                                    $teacher_row=  mysql_fetch_array($student_query);
                                    ?>
                                    
                                     <img  src="admin/<?php echo $teacher_row['location']; ?>"  class="img img-rounded" id="picture">
                                        &nbsp;
                                    <div class="btn-group">
                                       
                                        <button class="btn btn-success"><i class="icon-user icon-large"></i>&nbsp; <?php echo $user_row['firstname'] . " " . $user_row['lastname']; ?></button>
                                        <button class="btn dropdown-toggle" data-toggle="dropdown">
                                            <span class="caret"></span>
                                        </button>
                                        <ul class="dropdown-menu">
                                            <li><a href="#logout" role="button"  data-toggle="modal"><i class="icon-signout icon-large"></i>&nbsp;Logout</a></li>
                                        </ul>

                                    </div>

                                    <?php include('logout_modal.php') ?>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>

            </div>


        </div>

 teacher_add_subject.php

<?php include ('session.php'); ?>
<?php
include('header.php');
$user_query = mysql_query("select * from teacher where teacher_id='$session_id'") or die(mysql_error());
$user_row = mysql_fetch_array($user_query);
?>
<body>

    <?php include('navhead_user.php'); ?>

    <div class="container">
        <div class="row-fluid">
            <div class="span3">
                <div class="hero-unit-3">
                    <div class="alert-index alert-success">
                        <i class="icon-calendar icon-large"></i>
                        <?php
                        $Today = date('y:m:d');
                        $new = date('l, F d, Y', strtotime($Today));
                        echo $new;
                        ?>
                    </div>
                </div>
                <div class="hero-unit-1">
                    <ul class="nav  nav-pills nav-stacked">
                        <li class="nav-header">Links</li>
                        <li>
                            <a href="teacher_home.php"><i class="icon-home icon-large"></i>&nbsp;Home
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a>

                        </li>
                        <li>
                            <a href="teacher_class.php"><i class="icon-group icon-large"></i>&nbsp;Class
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>
                        <li  class="active"><a href="teacher_subject.php"><i class="icon-file-alt icon-large"></i>&nbsp;Subjects
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>
                        <li><a href="students.php"><i class="icon-group icon-large"></i>&nbsp;Students
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>


                    </ul>
                </div>

            </div>
            <div class="span9">
                <a href="teacher_subject.php" class="btn btn-success"><i class="icon-arrow-left icon-large"></i>&nbsp;Back</a>
                <br>
                <br>

                <div class="alert alert-info">
                    <button type="button" class="close" data-dismiss="alert">&times;</button>
                    <strong><i class="icon-user icon-large"></i>&nbsp;Add Subject</strong>
                </div>
                <div class="hero-unit-2">
                    <form class="form-horizontal" method="POST">
                        <div class="control-group">
                            <label class="control-label" for="inputEmail">Subject</label>
                            <div class="controls">

                                <select name="subject" class="span6">
                                    <option></option>
                                    <?php
                                    $query = mysql_query("select * from subject") or die(mysql_error());
                                    while ($row = mysql_fetch_array($query)) {
                                        ?>
                                        <option value="<?php echo $row['subject_id']; ?>"><?php echo $row['subject_title']; ?></option>
                                    <?php } ?>
                                </select>
                            </div>
                        </div>

                        <div class="control-group">
                            <div class="controls">
                                <button type="submit" name="save_subject" class="btn btn-success"><i class="icon-plus-sign icon-large"></i>&nbsp;Add Subject</button>
                            </div>
                            <br>
                            <?php
                            if (isset($_POST['save_subject'])) {
                                $subject = $_POST['subject'];

                                $result = mysql_query("select * from teacher_suject where teacher_id='$session_id' and subject_id='$subject'") or die(mysql_error());
                                $count = mysql_num_rows($result);

                                if ($count > 0) {
                                    ?>
                                    <div class="alert alert-danger">Subject <strong>Already Exist</strong></div>
                                    <?php
                                } else {


                                    mysql_query("insert into teacher_suject (subject_id,teacher_id) values('$subject','$session_id')") or die(mysql_error());
                                    header('location:teacher_subject.php');
                                }
                            }
                            ?>

                        </div>
                    </form>



                    <!-- end slider -->
                </div>
            </div>

        </div>
        <?php include('footer.php'); ?>
    </div>
</div>
</div>






</body>
</html>

teacher_subject.php

<?php include ('session.php'); ?>
<?php
include('header.php');
$user_query = mysql_query("select * from teacher where teacher_id='$session_id'") or die(mysql_error());
$user_row = mysql_fetch_array($user_query);
?>
<body>

    <?php include('navhead_user.php'); ?>

    <div class="container">
        <div class="row-fluid">
            <div class="span3">
                <div class="hero-unit-3">
                    <div class="alert-index alert-success">
                        <i class="icon-calendar icon-large"></i>
                        <?php
                        $Today = date('y:m:d');
                        $new = date('l, F d, Y', strtotime($Today));
                        echo $new;
                        ?>
                    </div>
                </div>
                <div class="hero-unit-1">
                    <ul class="nav  nav-pills nav-stacked">
                        <li class="nav-header">Links</li>
                        <li>
                            <a href="teacher_home.php"><i class="icon-home icon-large"></i>&nbsp;Home
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a>

                        </li>
                        <li>
                            <a href="teacher_class.php"><i class="icon-group icon-large"></i>&nbsp;Class
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>
                        <li   class="active"><a href="teacher_subject.php"><i class="icon-file-alt icon-large"></i>&nbsp;Subjects
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>
                        <li><a href="students.php"><i class="icon-group icon-large"></i>&nbsp;Students
                                <div class="pull-right">
                                    <i class="icon-double-angle-right icon-large"></i>
                                </div>  
                            </a></li>


                    </ul>
                </div>

            </div>
            <div class="span9">



                <a href="teacher_add_subject.php" class="btn btn-success"><i class="icon-plus-sign icon-large"></i>&nbsp;Add Subject</a>
                <br>
                <br>
                <div class="hero-unit-3">
                    <table cellpadding="0" cellspacing="0" border="0" class="table table-striped table-bordered" id="example">
                        <div class="alert alert-info">
                            <button type="button" class="close" data-dismiss="alert">&times;</button>
                            <strong><i class="icon-user icon-large"></i>&nbsp;Subject Table</strong>
                        </div>
                        <thead>
                            <tr>

                                <th>Course Code</th>
                                <th>Course Description</th>
                                <th>Action</th>
                            </tr>
                        </thead>
                        <tbody>
                            <?php
                            $teacher_subject_query = mysql_query("select * from teacher_suject where teacher_id='$session_id'") or die(mysql_error());
                            $teacher_row = mysql_fetch_array($teacher_subject_query);
                            $subject_id = $teacher_row['subject_id'];

                            $query = mysql_query("select * from subject where subject_id = '$subject_id'") or die(mysql_error());
                            while ($row = mysql_fetch_array($query)) {
                                $id = $row['subject_id'];
                                ?>
                                   <!-- script -->
                            <script type="text/javascript">
                                $(document).ready(function(){
                                
                                    $('#d<?php echo $subject_id; ?>').tooltip('show')
                                    $('#d<?php echo $subject_id; ?>').tooltip('hide')
                                });
                            </script>
                            <!-- end script -->
                            <!-- script -->
                            <script type="text/javascript">
                                $(document).ready(function(){
                                
                                    $('#e<?php echo $subject_id; ?>').tooltip('show')
                                    $('#e<?php echo $subject_id; ?>').tooltip('hide')
                                });
                            </script>
                            <!-- end script -->

                                <tr class="odd gradeX">

                                    <td><?php echo $row['subject_code']; ?></td> 
                                    <td><?php echo $row['subject_title']; ?></td> 

                                    <td width="50">
                                        <a rel="tooltip"  title="Delete Subject" id="d<?php echo $subject_id; ?>" href="#id<?php echo $id; ?>" role="button"  data-toggle="modal" class="btn btn-danger"><i class="icon-trash icon-large"></i>&nbsp;</a>
                                       
                                    </td>
                                    <!-- user delete modal -->
                            <div id="id<?php echo $id; ?>" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
                                <div class="modal-header">
                                </div>
                                <div class="modal-body">
                                    <div class="alert alert-danger">Are you Sure you Want to <strong>Delete</strong>&nbsp; this Subject?</div>
                                </div>
                                <div class="modal-footer">
                                    <button class="btn" data-dismiss="modal" aria-hidden="true"><i class="icon-remove icon-large"></i>&nbsp;Close</button>
                                    <a href="delete_teacher_course.php<?php echo '?id=' . $course_id; ?>" class="btn btn-danger"><i class="icon-trash icon-large"></i>&nbsp;Delete</a>
                                </div>
                            </div>
                            <!-- end delete modal -->

                            </tr>
                        <?php } ?>
                        </tbody>
                    </table>
                    <!-- end slider -->
                </div>
            </div>

        </div>
        <?php include('footer.php'); ?>
    </div>
</div>
</div>






</body>
</html>

Edited by aquilina, 26 May 2014 - 04:43 PM.

Hey guys, I've searched on Google for this and have had no luck, and you guys have been EXTREMELY helpful with a few of my previous questions!

Alright the error I get is: Warning: Cannot modify header information - headers already sent by (output started at /****/header.php:6) in /***/*login.php on line 65

 
Errr.. After I posted this I saw the Sticky regarding Header posts..

I read the post and cannot find where the issue is with this..

The PHP code comes before the form information, am I missing something?
 

My login.php script is:
Code: [Select]
<?php
  include("header.php");

  mysql_connect("10.6.186.84", "gilmdiniz", "Gil19471947") or die(mysql_error());
  mysql_select_db("gilmdiniz") or die(mysql_error());

  if(isset($_COOKIE['ID_my_site']))
  {
    $username = $_COOKIE['ID_my_site']; 
    $pass = $_COOKIE['Key_my_site'];
    $check = mysql_query("SELECT * FROM users WHERE username = '$username'")or die(mysql_error());

    while($info = mysql_fetch_array( $check )) 
    {
      if ($pass != $info['password']) 
      {
      }
      else
        echo "SUP";//header($hdir."files.php");
    }
  }

  if (isset($_POST['submit']))
  {
    if(!$_POST['username'] | !$_POST['pass'])
      die('<center>You did not fill in a required field!
             <br />
             <a href="'.$hdir.'login.php">
               Back to Login
             </a>
           </center>');
 
    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 ($check2 == 0)
      die('<center>This username does not exist in our database, sorry.
             <br />
             <a href="'.$hdir.'login.php">
               Back to Login
             </a>
           </center>');

    while($info = mysql_fetch_array( $check )) 
    {
      $_POST['pass'] = stripslashes($_POST['pass']);
      $info['password'] = stripslashes($info['password']);
      $_POST['pass'] = md5($_POST['pass']);

      if ($_POST['pass'] != $info['password'])
        die('<center>Incorrect password, please try again.
             <br />
             <a href="'.$hdir.'login.php">
               Back to Login
             </a>
           </center>');

      else 
      {
        $_POST['username'] = stripslashes($_POST['username']); 
        $hour = time() + 3600; 
        setcookie(ID_my_site, $_POST['username'], $hour); 
        setcookie(Key_my_site, $_POST['pass'], $hour);  

        echo "SUP";//header($hdir."files.php"); 
      }
    }
  }

  else 
  {
?>
  <center>
    <a href="<?php echo $hdir .'index.php'; ?>">
      Back to Home
    </a>
    <table border="1">
      <tr><td>
        <center><h2>Login Information</h2></center>
      </td></tr>
      <tr><td>
        <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
          <table border="0">
            <tr><td>
              Username:
            </td><td>
            <input type="text" name="username" maxlength="40">
          </td></tr>
          <tr><td>
            Password:
          </td><td>
          <input type="password" name="pass" maxlength="50">
        </td></tr>
        <tr><td colspan="2" align="right">
          <input type="submit" name="submit" value="Login">
        </td></tr>
      </table>
    </form>
  </td></tr>
</table>
</center>
<?php 
  } 
?>
and my header.php script is:
Code: [Select]
<?php
  $hdir = "http://www.ondemandagents.com/NewSite_ALPHA/";
?>

  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <link rel="stylesheet" type="text/css" href="<?php echo $hdir .'style.css'; ?>" />
</head>

<body>

<table width="920" cellspacing="0" cellpadding="10" border="0" align="center">
  <tr>
    <td class="bodyline">
      <table align="center" border="0" width="635" height="121" background="<?php echo $hdir .'images/logo.png'; ?>">
        <tr>
          <td height="69">
            <table border="0" width="635" height="106">
              <tr>
                <td width="800" height="70">&nbsp;</td>
                <td width="600" height="70">&nbsp;</td>
              </tr>
              <tr>
                <td width="400" height="18">&nbsp;</td>
                <td width="600" height="18">
          <a href="<?php echo $hdir .'index.php'; ?>" style="text-decoration: none">
          <img src="<?php echo $hdir .'images/icon_mini_home.gif'; ?>" width="12" height="13" border="0" alt="Home" hspace="3" />
          <font face="Arial" color="#FFFFFF" size="2">Home&nbsp;&nbsp;</font></a>&nbsp; &nbsp;

          <a href="<?php echo $hdir .'files.php'; ?>" style="text-decoration: none">
          <img src="<?php echo $hdir .'images/icon_mini_files.gif'; ?>" width="12" height="13" border="0" alt="Files" hspace="3" />
          <font face="Arial" color="#FFFFFF" size="2">Files&nbsp;&nbsp;</font></a>&nbsp; &nbsp;

          <a href="<?php echo $hdir .'admin.php'; ?>" style="text-decoration: none">
          <img src="<?php echo $hdir .'images/icon_mini_login.gif'; ?>" width="12" height="13" border="0" alt="Administration" hspace="3" />
          <font face="Arial" color="#FFFFFF" size="2">Administration</font></a>&nbsp; &nbsp;
                </td>
              </tr>
            </table>
          </td>
        </tr>
      </table>
    </td>
  </tr>
</table>
I have been using a header file in all my pages and scripts so far so that I wouldn't have to keep typing repetitive code..

Help is MUCH appreciated!

Thanks in advance guys

I understand the warning, but I don't get the issue on my local server, only on my live server.
From what I can see in the outputted source is a space and also i'm assuming a newline, before the warning...

I've traced every route in my code, no output what-so-ever. I can't believe the hosts would insert such characters.
I've tried separate files within the root directory, an html and a php, neither output these characters.

Eventually I commented out the inclusion of modules one by one and found that the error should be in a specific one of these...

Now going through I can't find any 'echo' or 'print' statements.
Everything is within functions, and this error happens before anything is called, just included.
There are no erroneous spaces before or after php code tags.

What else would / could produce output? (and why no issue on local server?)


EDIT:

There is no use of 'output buffering' either...

<body background="homebackground.jpg">
<style type="text/css">
<!--
A:link { COLOR: black; TEXT-DECORATION: none; font-weight: normal }
A:visited { COLOR: black; TEXT-DECORATION: none; font-weight: normal }
A:active { COLOR: green; TEXT-DECORATION: none }
A:hover { COLOR: blue; TEXT-DECORATION: none; font-weight: none }
-->
</style>
<?php


   
   include ("database.php");

   //Checks if there is a login cookie
   if(isset($_COOKIE['ID_my_site']))
   {
      $username = mysql_real_escape_string( $_COOKIE['ID_my_site'] );
      $pass = mysql_real_escape_string( $_COOKIE['Key_my_site'] );
      
      $check = mysql_query("SELECT * FROM users WHERE username = '$username' AND password = '$pass'")or die(mysql_error());
      
      while($info = mysql_fetch_array( $check ))    
      {
         if ($pass == $info['password'])
           print("<meta http-equiv='Refresh' content='0;index.php' />");

      }
   }
   
   //if the login form is submitted
   if (isset($_POST['submit']))
   { // if form has been submitted
      
      // makes sure they filled it in
      if(!$_POST['username'] | !$_POST['pass'])
         die('
         <body background="homebackground.jpg"><center><p><br><p><b>
         You did not fill in a required field, <a href="login.php"><b>
         click here to try again.</a></center></b></b>
         ');

      // checks it against the database
       if (!get_magic_quotes_gpc())
         $_POST['email'] = addslashes($_POST['email']);
         $_POST['username'] = stripslashes($_POST['username']);
      
      $check = mysql_query("SELECT * FROM users WHERE username = '".$_POST['username']."'")or die(mysql_error());
      
      //Gives error if user dosen't exist
      $check2 = mysql_num_rows($check);
         
      if ($check2 == 0)
         die('
         <body background="homebackground.jpg"><center><p><br><p><b>
         That user does not exist in our database, <a href=add.php><b>
         click here to Register</a></b></b></center>
         ');

      while($info = mysql_fetch_array( $check ))    
      {
         $_POST['pass'] = stripslashes($_POST['pass']);
         $_POST['pass'] = md5($_POST['pass']);
   
         //gives error if the password is wrong
         if ($_POST['pass'] != $info['password'])
            die('
            <body background="homebackground.jpg"><center><p><br><p><b>
            Invalid password, <a href="login.php"><b>click here to try again.</b></b></a>
            ');
         else
         {
            // if login is ok then we add a cookie
            $_POST['username'] = stripslashes($_POST['username']);
            $_POST['password'] = stripslashes($_POST['password']);
            $hour = time() + 3600;
             setcookie("ID_my_site", $_POST['username'], $hour);
            setcookie("Key_my_site", $_POST['pass'], $hour);   
   
            //then redirect them to the members area
            if ($pass == $info['password'])
         print "you have logged in.";
         print("<meta http-equiv='Refresh' content='0;index.php' />");
         }
      }
   }
   else
   {   
   
    // if they are not logged in
   
 ?>
<?php
include ("nav.php");
?>
 
 <center>
 <form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
 <table border="0">
 <tr><td colspan=2><h1>      Log in</h1></td></tr>
 <tr><td>Username:</td><td>
 <input type="text" name="username" maxlength="40">
 </td></tr>
 <tr><td>Password:</td><td>
 <input type="password" name="pass" maxlength="50">
 </td></tr>
 <tr><td colspan="2" align="right">
 <input type="submit" name="submit" value="Login">
 </td></tr>
 </table>
 </form>
  </center>
 <?php
 }
 ?>
   <HTML>
<HEAD>
<link rel="favicon.ico" href="***/favicon.ico">
<title>
My site
</title>
</HEAD>
<BODY>

Hello,    I have an error on multiple pages which looks much like this. If anyone can help that would be gratefully appreciated. I would also like to ask if you may give me an explanation as to why it is occurring and not just a solution. Also when I take the second header out the error disappears.     Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\blog\blog_display_post.php:47) in C:\xampp\htdocs\blog\comments.php on line 49     Here is my code:   if(strlen($email) > 5){ mysqli_query($con, "INSERT INTO emails (email) VALUES ('$email')");

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 

Cannot modify header information - headers already sent by (output started at )  on line 179
 I labeled 179 its at the bottom.
I understand this means its already generating the html but not how or where.  A solution would of course be nice but if some one could tell me even how to figure it out it would be great.

Code: [Select]
<?php

if(isset($_POST['email'])) {
   



// EDIT THE 2 LINES BELOW AS REQUIRED
    $email_to = "test@test.com";
    $email_subject = "$mile";
    
     
    function died($error) {
        // your error code can go here
        echo "We are very sorry, but there were error(s) found with the form you submitted. ";
        echo "These errors appear below.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }
    
     /*"trail_section_mile", float dash
    "trail_section_name", #9()alphanumeric
    "name",
    "date"auto date
    "email",same
    "telephone" same
    "trail_condition" no validation just sanitize size limit
    "attention_area"   no validation just sanitize size limit
    "under_20"          no validation just sanitize size limit
    "_20_54"          no validation just sanitize size limit
    "_55_over"          no validation just sanitize size limit
    */
 if(!isset($_POST['trail_section_mile']) ) {
        died('1');      
    } 
    if(!isset($_POST['trail_section_name']) ) {
        died('2');      
    }
    if(!isset($_POST['name']) ) {
        died('3');      
    } 
    if(!isset($_POST['email']) ) {
        died('4');      
    }
    if(!isset($_POST['telephone']) ) {
        died('5');      
    } 
    if(!isset($_POST['trail_condition']) ) {
        died('6');   
    }
       if(!isset($_POST['attention_area']) ) {
        died('7');   
    }
    if(!isset($_POST['under_20']) ) {
        died('8');      
    } 
    if(!isset($_POST['_20_54']) ) {
        died('9');      
    }
    if(!isset($_POST['_55_over']) ) {
        died('0');      
    } 
   
      if(!isset($_POST['total_hours']) ) {
        died('011');      
    }
    
    //comments field is a honeypot
    
      require ('Validate.php');
$email = $_REQUEST['email'];
$validate = new Validate();
if (!Validate::email($email, array('check_domain' => true, 'use_rfc822' =>true))) {
  echo "Invalid email";
}
      
    
    $trail_section_mile = $_POST['trail_section_mile']; // required
    $trail_section_name = $_POST['trail_section_name']; // required
   $name = $_POST['name']; // required
   $email = $_POST['email']; // required
   $telephone = $_POST['telephone']; // required
   $trail_condition = $_POST['trail_condition']; // required
    $attention_area = $_POST['attention_area']; // required
   $under_20 = $_POST['under_20'];
   $_20_54 = $_POST['_20_54'];
   $_55_over = $_POST['_55_over'];
   $_55_over = $_POST['total_hours'];
    // required
 
 if (preg_match('/[\d\D\b\B\s\S]/', $comments)) {
    echo "nope";
}
   
if (!preg_match("/([\w\.\#\-\,]{1,30})+/", $trail_section_mile)) 
{echo "please enter the section mile markers again only numbers, decimals dashes and # are aloud";
}

if (!preg_match("/[a-z'-]+/", $trail_section_name)) {
    echo "Try your last name again.";
}

if (!preg_match("/[a-z'-]+/", $name)) {   
    echo "please re-type your address.";
}

 if (!preg_match("/^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/i", $telephone))
 {
    echo "Something is wrong with the phone number you intered. Please enter your area code first then ther rest of tyour number.";
}

   
 if (( preg_match( "/[\r\n]/", $first_name ) || 
 preg_match( "/[\r\n]/", $email ) || 
 preg_match( "/[\r\n]/", $last_name) ) || 
 preg_match( "/[\r\n]/", $state)) {

   echo "nope";

}
  
    $trail_section_mile = strip_tags($trail_section_mile);
    $trail_section_name = strip_tags($trail_section_name);
   $name  =strip_tags($name);
   $email = strip_tags($email);
   $telephone = strip_tags($telephone);
   $trail_condition = strip_tags($trail_condition);
    $attention_area = strip_tags($attention_area);
    $under_20 = strip_tags($under_20);
   $_20_54 = strip_tags($_20_54);
   $_55_over = strip_tags($_55_over);
    $total_hours = strip_tags($total_hours);
   
   
   $trail_section_mile = htmlspecialchars($trail_section_mile);
    $trail_section_name = htmlspecialchars($trail_section_name);
   $name = htmlspecialchars($name);
   $email = htmlspecialchars($email);
   $telephone = htmlspecialchars($telephone);
   $trail_condition = htmlspecialchars($trail_condition);
    $attention_area = htmlspecialchars($attention_area);
    $under_20 = htmlspecialchars($under_20);
   $under_20 = htmlspecialchars($_20_54);
   $_55_over = htmlspecialchars($_55_over);
    $total_hours = htmlspecialchars($total_hours);
    
   
  
    $email_message = "Form details below.\n\n";
       $email_message = date("m/d/Y") . "\n";

    function clean_string($string) {
      $bad = array("content-type","bcc:","to:","cc:","href");
      return str_replace($bad,"",$string);
    }
     
    $email_message .= "Trail Section Mile Markers: ".clean_string($trail_section_mile)."\n";
    $email_message .= "Trail Section Name : ".clean_string($trail_section_name)."\n";
   $email_message .= "Reported by: ".clean_string($name)."\n";
   $email_message .= "Email Address: ".clean_string($email)."\n";
   $email_message .= "Telephone Number: ".clean_string($telephone)."\n";
   $email_message .= "General Trail Condition : ".clean_string($trail_condition)."\n";
    $email_message .= "Mile #/Problem/Suggested Improvements: ".clean_string($attention_area)."\n";
    $email_message .= "Volunteers Under Age 20 #Males/#Females/Ethnicity/Name: ".clean_string($under_20)."\n";
    $email_message .= "   
Volunteers Ages 20 to 54 #Males/#Females/Ethnicity/Name: ".clean_string($_20_54)."\n";
        $email_message .= "Volunteers Age 55+ #Males/#Females/Ethnicity/Name: ".clean_string($_55_over)."\n";
    $email_message .= "Total Volunteer Hours: ".clean_string($total_hours)."\n";

   
     $about ="Maintenance Report from" .$name. "/n";
     
// create email headers
$headers = 'Subject : '.$about."/r/n"
.'From: '.$email."\r\n"
.'Reply-To: '.$email."\r\n" .
'X-Mailer: PHP/' . phpversion();
header("Location: oht/maintenance/maintenance-report/thank-you/");                              //line 179
@mail($email_to, $email_subject, $email_message, $headers); 
?>

<?php
}
?>


MOD EDIT: [code] . . . [/code] BBCode tags added.

Quote

Warning: Cannot modify header information - headers already sent by (output started at /home3/nyhungry/public_html/storeprueba/storescripts/connect_to_mysql.php:2) in /home3/nyhungry/public_html/storeprueba/storeadmin/admin_login.php on line 29


What can I do to fix the error where a second header is called, needed but intervening

admin_login.php

Code: [Select]
<?php 

session_start();
    if (isset($_SESSION["manager"])) 
{
    header("location:index.php"); 
    exit();
}
?>
<?php 

if (isset($_POST["username"]) && isset($_POST["password"])) 
{
$manager = preg_replace('#[^A-Za-z0-9]#i', '', $_POST["username"]); // filter everything but numbers and letters
       $password = preg_replace('#[^A-Za-z0-9]#i', '', $_POST["password"]); // filter everything but numbers and letters
  
           include "../storescripts/connect_to_mysql.php"; 
           $sql = mysql_query(
                            "SELECT id 
                              FROM admin 
                              WHERE username='$manager' 
                              AND password='$password' 
                              LIMIT 1"); 
 
    $existCount = mysql_num_rows($sql); 
       if ($existCount == 1) 
     { 
     while($row = mysql_fetch_array($sql))
            { 
             $id = $row["id"];
             }
 $_SESSION["id"] = $id;
 $_SESSION["manager"] = $manager;
 $_SESSION["password"] = $password;
 header("location:index.php");
         exit();
    } else 
      {
echo 'That information is incorrect, try again <a href="index.php">Click Here</a>';
exit();
}
}
?>

is the  second header here like below in the code clashing? because in the connect_to_mysql.php there is no headers

Code: [Select]

<?php
                $_SESSION["id"] = $id;
 $_SESSION["manager"] = $manager;
 $_SESSION["password"] = $password;
 header("location:index.php");
                    exit();
<?

Code: [Select]
<?php
{
$name=$_POST["txtGiven"];
$surname=$_POST["txtFamily"];
$user=$_POST["txtUser"];
$email=$_POST["txtEmail"];
$password=$_POST["txtPassword"];
$query="INSERT INTO Customer(Firstnames,Surname,Username,Email,Password) VALUES('$name','$surname','$user','$email','$password')";
include"connection.php";
$result=mysql_query($query)or die("Error in query: $query. ".mysql_error());;
header("Location: userReceipt.php");
mysql_close($connection);
}
?>

ive tried removing all the spaces from all my php pages. That is the most common solution that comes up and nothing seems to work. I also have a login page where the same error is