header problem

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    #1

    header problem

    hi there friends i am coding my own site and i have got this warning and can not understand what the error is as i used it many times befor


    Code:
    Warning: Cannot modify header information - headers already sent by (output started at C:\******\htdocs\check.php:9) in C:\*******\htdocs\check.php on line 40
    this is the part i got problems with

    Code:
    header("location:index.php");
}
else 
{
header("location:index.php?login=1");
}
    can some one tell me whats wrong with it please
    Tags: None
    #2
    headers already sent

    2 headers being used on this page maybe by an included file

    Comment

      #3
      i have tryed a include file but still had problems

      Comment

        #4
        There is another header above these 2 headers ... find it and remove it :P

        Comment

          #5
          PHP Code:
          <!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>Tester: Checking Validity. . .</title>
          </head>

          <body>
          <?php
          @session_start();
          include(          'administrator/config.php');

          $tbl_name="users"; 

          $myusername=$_POST['username'];
          $mypassword=md5($_POST['password']);

          $myusername = stripslashes($myusername);
          $mypassword = stripslashes($mypassword);
          $myusername = mysql_real_escape_string($myusername);
          $mypassword = mysql_real_escape_string($mypassword);

          $sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
          $result=mysql_query($sql);

          $count=mysql_num_rows($result);

          if(          $count==1){

          $_SESSION['userlog']=time();
          echo           "Session set";
          header("location:index.php");
          }
          else 
          {
          header("location:index.php?login=1");
          }
          ?>
          </body>
          </html>
          this is the page i have having problems on mate

          Comment

            #6
            all you need is:
            PHP Code:
            <?php 
            @session_start(); 
            include(            'administrator/config.php'); 

            $tbl_name="users";  

            $myusername=$_POST['username']; 
            $mypassword=md5($_POST['password']); 

            $myusername = stripslashes($myusername); 
            $mypassword = stripslashes($mypassword); 
            $myusername = mysql_real_escape_string($myusername); 
            $mypassword = mysql_real_escape_string($mypassword); 

            $sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'"; 
            $result=mysql_query($sql); 

            $count=mysql_num_rows($result); 

            if(            $count==1){ 

            $_SESSION['userlog']=time(); 

            header("location:index.php"); 
            } 
            else  
            { 
            header("location:index.php?login=1"); 
            } 
            ?>
            Added after 6 minutes:

            if you wish the page to show the words Session set then you would have to use:
            <meta http-equiv="refresh" content="10; index.php"> rather than use a header tag
            Last edited by something else; 30.11.10, 20:19.

            Comment

              #7
              Code:
              <?php 
@session_start(); 
include('administrator/config.php'); 
$tbl_name="users";  
$myusername=$_POST['username']; 
$mypassword=md5($_POST['password']); 
$myusername = stripslashes($myusername); 
$mypassword = stripslashes($mypassword); 
$myusername = mysql_real_escape_string($myusername); 
$mypassword = mysql_real_escape_string($mypassword); 
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'"; 
$result=mysql_query($sql); 
$count=mysql_num_rows($result); 
if($count==1){ 
$_SESSION['userlog']=time(); 
$msg = "Session set"; 
header("location:index.php"); 
}else{ 
header("location:index.php?login=1"); 
} 
?> 
<!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>Tester: Checking Validity. . .</title> 
</head> 

<body> 
<?php echo $msg; ?>
</body> 
</html>
              Always put @session_start(); before the headers to work right.

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              Comment

                #8
                Dont use @ to suppress errors. Sucks. Look 4 included files before that line and remove ending ?> also yeah put session_start() up up up.

                Also u shud use header_sent()

                Comment

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