How to redirect to another page using PHP

Question

I m building a website which includes a login page  I need to redirect the user to their profile page once they ve logged in successfully  but I don t know how to do that in PHP  It s my first site   I ve searched the internet and have been told that the header   function should do the trick  but it will only work if I haven t outputted any information before using it  That s the problem  I ve outputted a bunch of information  Including the HTML to build the login page itself   So how do I redirect the user from one page to the next  What options do I have  Also  what is the best practice in these instances   EDIT  Here s my entire login php page   lt  php   session start      echo  quot  lt  DOCTYPE html gt      lt html gt         lt head gt            lt meta charset  utf-8  gt            lt title gt Sprout lt  title gt       lt link rel  stylesheet  href  stylesheet css  type  text css  gt        lt  head gt    lt body gt       lt div class  box  gt       lt form action  login php  method  post  gt         Name lt br   gt   lt input type  text  name  username  class  form   gt  lt br   gt         Password lt br   gt   lt input type  password  name  password  class  form   gt          lt input type  submit  value  Login  class  button    gt       lt  form gt       lt  div gt    lt  body gt     lt  html gt  quot    if    SERVER  REQUEST METHOD       POST           username     POST  quot username quot         password     POST  quot password quot          dbhost    quot localhost quot        dbuser    quot root quot        dbpass    quot root quot         conn   mysql connect  dbhost   dbuser   dbpass  or die   quot Error connecting to database quot          dbname    quot database quot        mysql select db  dbname         query    quot SELECT username FROM users WHERE username     username  AND password     password  quot         result   mysql query  query  or die   quot Failed Query of  quot     query         while  row   mysql fetch assoc  result                       SESSION  quot user quot      username            gt

User · Answer

You could use a function similar to   function redirect  url        ob start        header  Location     url       ob end flush        die        Worth noting  you should always use either ob flush   or ob start   at the beginning of your header  location         functions  and you should always follow them with a die   or exit   function to prevent further code execution   Here s a more detailed guide than any of the other answers have mentioned  http   www exchangecore com blog how-redirect-using-php   This guide includes reasons for using die     exit   functions in your redirects  as well as when to use ob flush   vs ob start    and some potential errors that the others answers have left out at this point

User · Answer

The simplest approach is that your script validates the form-posted login data  on top  of the script before any output   If the login is valid you ll redirect using the  header  function   Even if you use  ob start    it sometimes happens that you miss a single whitespace which results in output  But you will see a statement in your error logs then    lt  php ob start    if  FORMPOST        if  POSTED DATA VALID            header  Location  https   www yoursite com profile             ob end flush            exit              YOUR LOGINBOX OUTPUT  ERROR MESSAGES         ob end flush      gt

User · Answer

Assuming you re using cookies for login  just call it after your setcookie call -- after all  you must be calling that one before any output too   Anyway in general you could check for the presence of your form s submit button name at the beginning of the script  do your logic  and then output stuff   if isset   POST  mySubmit              the form was submitted                    perform your logic         redirect if login was successful     header  Location   somewhere          output your stuff here

User · Answer

You can conditionally redirect to some page within a php file      if    Condition to redirect         You need to redirect   header  Location  http   www yourwebsite com user php       Redirect browser      exit       else       do some

User · Answer

firstly create index php page and just copy paste below code  -   lt form name  frmUser  class  well login-form  id  form  method  post  action  login check php  onSubmit  return FormValidation    gt       lt legend gt           lt icon class  icon-circles  gt  lt  icon gt Restricted Area lt icon class  icon-circles-reverse  gt  lt  icon gt       lt  legend gt       lt div class  control-group  gt           lt label class  control-label  for  inputPassword  gt Username lt  label gt           lt div class  controls  gt               lt div class  input-prepend  gt                   lt span class  add-on  gt  lt icon class  icon-user icon-cream  gt  lt  icon gt   lt  span gt                   lt input class  input  type  text  name  username  id  username  placeholder  Username    gt               lt  div gt           lt  div gt       lt  div gt       lt div class  control-group  gt           lt label class  control-label  for  inputPassword  gt Password lt  label gt           lt div class  controls  gt               lt div class  input-prepend  gt                   lt span class  add-on  gt  lt icon class  icon-password icon-cream  gt  lt  icon gt                   lt  span gt   lt input class  input  type  password  name  password  id  password  value    placeholder  Password    gt               lt  div gt           lt  div gt       lt  div gt       lt div class  control-group signin  gt           lt div class  controls   gt               lt input type  submit  class  btn btn-block  value  Submit    gt               lt div class  clearfix  gt                   lt span class  icon-forgot  gt  lt  span gt  lt a href     gt forgot password lt  a gt               lt  div gt           lt  div gt       lt  div gt   lt  form gt       ------------------after that ----------------------    create a login check php and just copy paste this below code  -   lt  php session start    include  conn php      lt  php    Redirect browser    header  location index php        Make sure that code below does not get executed when we redirect     exit    gt     lt  php  if count   POST  gt 0             result   mysql query  SELECT   FROM admin WHERE username      POST  username      and password        POST  password              row    mysql fetch array  result    if is array  row            SESSION  user id      row user id         SESSION  username      row username         session register  user id      row user id        session register  username      row username      else         SESSION  msg    Invalid Username or Password      header  location index php         if isset   SESSION  user id           header  Location dashboard php         gt        -----------------------after that ----------------------     create a dashboard php and copy paste this code in starting of dashboard php     lt  php session start    include  conn php    include  check session php      gt        -----------------------after that-----------------       create a check session php which check your session and copy paste this code  -     lt  php     if   SESSION  user name             gt      Welcome  lt  php echo   SESSION  user name      gt   Click here to  lt a href  logout php  tite  Logout  gt Logout  lt  a gt   lt  php           else            header  location index php            gt       if you have any query so let me know on my mail id farjicompany gmail com

User · Answer

That s the problem  I ve outputted a bunch of information  including the HTML to build the login page itself   So how do I redirect the user from one page to the next    This means your application design is pretty broken  You shouldn t be doing output while your business logic is running  Go an use a template engine  like Smarty  or quickfix it by using output buffering    Another option  not a good one though   would be outputting JavaScript to redirect    lt script type  text javascript  gt location href    newurl   lt  script gt

User · Answer

header won t work for all  Use below simple code    lt  php         echo   lt script gt  location href  new url    lt  script gt            exit    gt

User · Answer

Just like you used echo to print a webpage  You could use also do the same with redirecting   print   lt script type   text javascript   gt location href   urlHere   lt  script gt

User · Answer

lt  php  include  quot config php quot         id   GET  id     include  quot config php quot    if  insert   mysqli query  con  quot update  consumer closeconnection set close status  Pending  where id  quot  id quot    quot                    gt   lt script gt      window location href  ConsumerCloseConnection php     lt  script gt   lt  php                           else                 gt   lt script gt       window location href  ConsumerCloseConnection php    lt  script gt   lt  php                     gt

User · Answer

On click BUTTON action      if isset   POST  save btn                     write some of your code here  if necessary         echo  lt script gt  window location  B php    lt  script gt

User · Answer

You could use ob start    before you send any output  This will tell to PHP to keep all the output in a buffer until the script execution ends  so you still can change the header   Usually I don t use output buffering  for simple projects I keep all the logic on the first part of my script  then I output all HTML

User · Answer

Although not secure   no offense or anything   just stick the header function after you set the session variable   while  row   mysql fetch assoc  result                       SESSION  user      username        header  Location   profile php

User · Answer

x000D   x000D  ---------- x000D   x000D   x000D   lt  php x000D  echo   lt div style  text-align center padding-top 200px   gt Go New Page lt  div gt     x000D     gourl  http   stackoverflow com   x000D    echo   lt META HTTP-EQUIV  Refresh  Content  2  URL    gourl    gt        x000D    exit  x000D   x000D    gt  x000D   x000D   x000D  ---------- x000D   x000D   x000D

[php] How to redirect to another page using PHP

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