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PHP - Modify Header Error - Caused By 'require?
Hello,
I have a simple login script that basically, when if you go to a page and you are NOT logged in (saved in cookie) then you get redirected to the login page, else the content is shown. It works, but I currently have my database connection details on the same page, I like to have them on a separate PHP and use require 'connet.php'. So I've gone ahead and done that, but now I get an error saying "Warning: Cannot modify header information - headers already sent". This only happens if I'm NOT logged in. It has something to do with my require "connect.php"; because if I comment that out, it works fine. Here is the script: Code: [Select] <?php //require "connect.php"; // < causes header error // Connects to your Database mysql_connect("localhost", "user", "pass") or die(mysql_error()); mysql_select_db("db") or die(mysql_error()); //checks cookies to make sure they are logged in 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( $check )){ //if the cookie has the wrong password, they are taken to the login page if ($pass != $info['password']){ header("Location: index.php"); } //otherwise they are shown the admin area else{ ?> - content - <a href=logout.php>Logout</a> <? } } } //if the cookie does not exist, they are taken to the login screen else{ header("Location: index.php"); } ?> My connect.php page is just: Code: [Select] <? // Connects to your Database mysql_connect("localhost", "user", "pass") or die(mysql_error()); mysql_select_db("db") or die(mysql_error()); ?> Why is the require causing this error, and how do I fix it? Thanks Similar Tutorialsi'm having trouble working with my search bar, when i used wamp it worked but now online i keep getting this message Quote Cannot modify header information - headers already sent by (output started at...) I placed that code for the search bar above the html tags but i keep getting the error here is my coding Code: [Select] <?php mysql_connect("localhost", "user", "pass") or die(mysql_error()); if (isset($_POST['submit'])) { $search = mysql_real_escape_string($_POST['search']); $type = mysql_real_escape_string($_POST['type']); if ($type == true) { header("Location:http://www.link.com/searchresults.php?subdirectory=$search&type=$type"); } } ?> I am getting this error when I use this Code: [Select] header("Location: /"); to redirect to home page.I believe there is a javascript alert which come before this is called, that gives the below error, I cannot remove the alert so is there nay other way I can go about redirecting without giving me the below error ? Code: [Select] A PHP Error was encountered Severity: Warning Message: Cannot modify header information - headers already sent by (output started at /home/dsdsd/application/core/MY_Controller.php:dsdsds) trying to use a require but not working properly Fatal error: require() [function.require]: Failed opening required 'get_extra.php?id=1' (include_path='.') first thing set on page is.. page is profile.php?id=1 $userid = $_GET['id']; code is:require "get_extra.php?id=$userid"; what can i do to fix this? thanks Hi, I want to have a require() and a header() on the same page. This is just impossible right? I am very confused in between these three terms INCLUDE, REQUIRE, HEADER... Can anyone tell me the difference between these three terms... I just want to run a php file in the if condition.. Basically i do not want to open i just want to run ... for ex. Code: [Select] <?php if(condition) { // run mail.php file } ?> That's my first time to see this kind of issue.
The PROD environment: Godaddy, IIS7, PHP5.4.30
The Local environment: Linux, PHP 5.5.X
The framework: CodeIgniter 2.2.0
Process:
I have view have form to update multiple files.
echo form_open_multipart('admin/UploadFiles');
The controller will do an initial check,
if( isset($_SERVER["CONTENT_LENGTH"])
&& ($_SERVER["CONTENT_LENGTH"]>((int)ini_get('post_max_size')*1024*1024)))
{
$this->session->set_flashdata('upload_error', 'Your file is too big to handle.');
redirect($_SERVER['HTTP_REFERER']);
}
else
{
if($_FILES['files']['error'][0] != 0)
{
$this->session->set_flashdata('upload_error', 'There are no files selected.');
redirect($_SERVER['HTTP_REFERER']);
}
else
{
$photo_info = array();
$photo_info = $_FILES['files'];
$this->load->model('uploadfile');
$results = $this->uploadfile->UploadImages($photo_info);
// My debug
echo "<pre>";
print_r($results);
echo "</pre>";
// redirect($_SERVER['HTTP_REFERER']);
}
In my model file, for debug purpose, I only put these lines.
Since I have traced the code line one by one, finally found the 500 error happens here.
if (!empty($this->CheckFileError($images)))
{
$results['fail'] = $this->CheckFileError($images);
foreach($this->CheckFileError($images) as $err)
$error_idx[] = $err['index'];
}
It happens on
empty($this->CheckFileError($images)) //$this->CheckFileError($images) is an arrayIf I just "return $this->CheckFileError($images)", it has no error at all. But If I do the code above, it will give me Internal 500 error. After I change to count($this->CheckFileError($images)) == 0everthing works. All the other logics in the actual model are remain same. I only change this line. It has no problem at all in my local. Only when I run it on my Godaddy IIS share hosting. Initially I thought the temp folder to hold the files is not writable. I even spent whole night to talk to Godaddy guys, but no progress. Even I tried create .user.ini to change the "upload_tmp_dir", it still gave me 500 error. Tonight, I debugged my code lines one by one, tested it in local first, then tested in Godaddy. Finally I found the root cause for my internal 500 error. However, I don't know why empty() will cause this issue. Can anyone explain it? I Googled, but didn't find any userful information. The reason why I use IIS is because I write my most of the services in WCF. Thanks! Edited by TFT2012, 01 October 2014 - 12:33 AM. 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"> </td> <td width="600" height="70"> </td> </tr> <tr> <td width="400" height="18"> </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 </font></a> <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 </font></a> <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> </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 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/"; ?> 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 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">
<div class="btn-group">
<button class="btn btn-success"><i class="icon-user icon-large"></i> <?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> 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> 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> 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> 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> 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> Back</a>
<br>
<br>
<div class="alert alert-info">
<button type="button" class="close" data-dismiss="alert">×</button>
<strong><i class="icon-user icon-large"></i> 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 $row['subject_title']; ?></option>
<?php } ?>
</select>
</div>
</div>
<div class="control-group">
<div class="controls">
<button type="submit" name="save_subject" class="btn btn-success"><i class="icon-plus-sign icon-large"></i> Add Subject</button>
</div>
<br>
<?php
if (isset($_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> 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> 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> 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> 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> 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">×</button>
<strong><i class="icon-user icon-large"></i> 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> </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> this Subject?</div>
</div>
<div class="modal-footer">
<button class="btn" data-dismiss="modal" aria-hidden="true"><i class="icon-remove icon-large"></i> Close</button>
<a href="delete_teacher_course.php<?php echo '?id=' . $course_id; ?>" class="btn btn-danger"><i class="icon-trash icon-large"></i> Delete</a>
</div>
</div>
<!-- end delete modal -->
</tr>
<?php } ?>
</tbody>
</table>
<!-- end slider -->
</div>
</div>
</div>
<?php include('footer.php'); ?>
</div>
</div>
</div>
</body>
</html>
Edited by aquilina, 26 May 2014 - 04:43 PM. i Have a php code... Code: [Select] <?php session_start(); if(@$_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 (" "); } 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'] = $user; header("Location: home.php"); }else{ echo "Invalid Username or Password"; } } ?> The htmlheader.php has the title string. Help is appreciated <body background="homebackground.jpg"> <style type="text/css"> <!-- A:link { COLOR: black; TEXT-DECORATION: none; font-weight: normal } A:visited { COLOR: black; TEXT-DECORATION: none; font-weight: normal } A:active { COLOR: green; TEXT-DECORATION: none } A:hover { COLOR: blue; TEXT-DECORATION: none; font-weight: none } --> </style> <?php include ("database.php"); //Checks if there is a login cookie if(isset($_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 $_SERVER['PHP_SELF']?>" method="post"> <table border="0"> <tr><td colspan=2><h1> Log in</h1></td></tr> <tr><td>Username:</td><td> <input type="text" name="username" maxlength="40"> </td></tr> <tr><td>Password:</td><td> <input type="password" name="pass" maxlength="50"> </td></tr> <tr><td colspan="2" align="right"> <input type="submit" name="submit" value="Login"> </td></tr> </table> </form> </center> <?php } ?> <HTML> <HEAD> <link rel="favicon.ico" href="***/favicon.ico"> <title> My site </title> </HEAD> <BODY> So I have a login box in my header, which worked when i hosted it locally, but now everytime i try to login i get Cannot modify header information - headers already sent (output started at /home/content/06/7711706/html/index.php:15) in /home/content/06/7711706/html/includes/header.php on line 102 and 103 Which is the setcookie bit, not sure what i'm doing wrong though. Any idea what i'm doing wrong? Thanks Code: [Select] <?php include('variables/variables.php'); ?> <div id="header"> <?php include('includes/flash.php'); ?> <?php mysql_connect("XXXXXXXXX", "XXXXXXX", "XXXXXX") or die(mysql_error()); mysql_select_db("XXXXXXX") or die(mysql_error()); if(isset($_COOKIE['test'])) { $username = $_COOKIE['test']; $pass = $_COOKIE['pass']; $check = mysql_query("SELECT * FROM customers WHERE username = '$username'")or die(mysql_error()); while($info = mysql_fetch_array( $check )) { if ($pass != $info['password']) { } else { header("Location: members.php"); } } } if (isset($_POST['submit'])) { if(!$_POST['username'] | !$_POST['pass']) { die('You did not fill in a required field.'); } $check = mysql_query("SELECT * FROM customers WHERE username = '".$_POST['username']."'")or die(mysql_error()); $check2 = mysql_num_rows($check); if ($check2 == 0) { die('That user does not exist in our database. <a href=reg.php>Click Here to Register</a>'); } while($info = mysql_fetch_array( $check )) { $_POST['pass'] = stripslashes($_POST['pass']); $info['password'] = stripslashes($info['password']); if ($_POST['pass'] != $info['password']) { die('Incorrect password, please try again.'); } else { $_POST['username'] = stripslashes($_POST['username']); $hour = time() + 3600; setcookie(test, $_POST['username'], $hour); setcookie(pass, $_POST['pass'], $hour); header("Location: members.php"); } } } else { ?> <form action="<?php echo $_SERVER['includes/PHP_SELF']?>" method="post"> <table bgcolor="#6699FF" height="50" border="0" style="border:hidden" align="right"> <tr><td colspan=2 align="center"><h2>Login</h2></td></tr> <tr><td>Username:</td><td> <input type="text" name="username" maxlength="40"> </td></tr> <tr><td>Password:</td><td> <input type="password" name="pass" maxlength="50"> </td></tr> <tr><td colspan="2" align="right"> <input type="submit" name="submit" value="Login"> </td></tr> </table> </form> <?php } ?></div> Why do i get this error when i put code for redirection on my php code :S Warning: Cannot modify header information - headers already sent by (output started at /home/dotars/public_html/shop/includes/functions.php:3) in /home/dotars/public_html/shop/includes/functions.php on line 20 This is that code on functions.php on line 20: function confirm_logged_in() { if (!logged_in()) { redirect_to("login.php"); } } function redirect_to($location = NULL) { if ($location != NULL) { header("Location: {$location}"); exit; } } And this is the code in the other php code: <?php require_once("includes/session.php"); ?> <?php require_once("includes/connection.php"); ?> <?php require_once("includes/functions.php"); ?> <?php confirm_logged_in(); ?> <!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=utf-8" /> <title>Untitled Document</title> </head> <body> <center> Text... </center> </body> </html> And confirm_logged_in() function is: 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... 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? <?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. |
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