php - Redirect user after session_write and setcookie -

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i want redirect user after login page, "header cannot modified" error. know there should not echo or else before header() command how done in normal way. user logs in, cookies set (also session set), user gets notification things went right way , redirected page?

here's php file:

<?php $qry="select * user email='$email' , password='".md5($_post['password'])."'"; $result=mysql_query($qry);  if($result) {     if(mysql_num_rows($result) == 1) {         $member = mysql_fetch_assoc($result);         $_session['sess_member_id'] = $member['id'];         $_session['email'] = $member['email'];         session_write_close();          if($remember_me == 1) {         setcookie("user",$email,time()+(3600*24*365));         setcookie("pw",md5($_post['password']),time()+(3600*24*365));         }          //header("location: logged.php");  <- doesn't work                      echo 'you logged in';     }      else {          echo 'something went wrong';         } } else {     die("query failed"); } } ?>

thanks in advance. best regards, john.

it should inside results function

               header("location: logged.php");                   exit;

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