hello evryone,

i have a small issue that i dont seem to get my head arround.

 

logincheck.php

<?php

.......

 

$return = true;

...

echo json_encode($return); 

?>

 

welcome.php

<?php

 

secured members content...

 

?>

 

index.php

 

<SCRIPT type="text/javascript" src="jquery-1.4.2.min.js"></SCRIPT>
<SCRIPT type="text/javascript" src="checklogin.js"></SCRIPT>

<?php

 

loginform

 

 

?>

 

 

 

checklogin.js

 

$(document).ready(function(){
 
 $('#submit').click(function() {
  
  $.ajax({
   type : 'POST',
   url : 'logincheck.php',
   dataType : 'json',
   asynchronous: false,

   data: {
    user :$('#username').val(),
    pass :$('#password').val(),
    
   },
 success : function(data){
   
     if(data.error==true)     {
   
     $("#msgbox").fadeTo(200,0.1,function()
   {
    
     $(this).html('Logging in.....').addClass('messageboxok').fadeTo(900,1,
              function()
     {
   
    //redirect to secure page
    document.location.href='welcome.php';

     return false;
 
     });
    
   });
    }
    else
    {
   
     $("#msgbox").fadeTo(200,0.1,function()
   {
   
     $(this).html('Wrong login detail ...').addClass('messageboxerror').fadeTo(900,1);
   });  
          }
  
 
  
   },
 error : function(XMLHttpRequest, textStatus, errorThrown) {
   
  $("#msgbox").fadeTo(200,0.1,function()
   {
     $(this).html('Error...').addClass('messageboxerror').fadeTo(900,1);
   }); 
   }
  });
  
  return false;
 });
});

 

 

 

 

 

 

here is my problem the login mechanism is working ok, but when the user is redirected to the welcome.php the output of logincheck. php  echo json_encode($return);  for example true or 1 is displayed 1st so whatever come from welcome.php give error php Warning: Cannot modify header information - headers already sent by .......

 

can anyone help plz

thanx.