How do I make a redirect in PHP

Question

Is it possible to redirect a user to a different page through the use of PHP   Say the user goes to www example com page php and I want to redirect them to www example com index php  how would I do so without the use of a meta refresh  Is it possible   This could even protect my pages from unauthorized users

User · Answer

Use    lt  php      url    targetpage      function redirect url            if  headers sent       false              echo   lt script gt window location href       url       lt  script gt                      gt

User · Answer

Here are my thoughts   IMHO  the best way to redirect an incoming request would be by using location headers  which goes   lt  php     header  Location   index php      gt    Once this statement is executed  and output sent out  the browser will begin re-directing the user  However  ensure that there hasn t been any output  any echo   var dump  before sending headers  else it will lead to errors   Although this is a quick-and-dirty way to achieve what was originally asked  it would eventually turn out to be an SEO disaster  as this kind of redirect is always interpreted as a 301   302 redirect  hence search engines will always see your index page as a re-directed page  and not something of a landing page   main page   Hence it will affect the SEO settings of the website

User · Answer

1  Using header function with exit      lt  php       header  Location  target-page php         exit      gt    but if you use header function then some times you will get  warning  like header already send  to resolve that do not echo or print before sending headers or you can simply use die   or exit   after header function       2  Without header    lt  php      echo   lt script gt location href  target-page php   lt  script gt      gt    here you will not face any problem      3  Using header function with ob start   and ob end flush      lt  php ob start      this should be first line of your page header  Location  target-page php    ob end flush      this should be last line of your page   gt

User · Answer

You can attempt to use the PHP header function to do the redirect  You will want to set the output buffer so your browser doesn t throw a redirect warning to the screen   ob start    header  Location       website   ob end flush

User · Answer

Use the header   function to send an HTTP Location header   header  Location     newURL     Contrary to what some think  die   has nothing to do with redirection  Use it only if you want to redirect instead of normal execution   File example php    lt  php     header  Location  static html         fh   fopen   tmp track txt    a        fwrite  fh    SERVER  REMOTE ADDR           date  c       n        fclose  fh     gt    Result of three executions   bart hal9k   gt  cat  tmp track txt 127 0 0 1 2009-04-21T09 50 02 02 00 127 0 0 1 2009-04-21T09 50 05 02 00 127 0 0 1 2009-04-21T09 50 08 02 00   Resuming  mdash  obligatory die   exit   is some urban legend that has nothing to do with actual PHP  It has nothing to do with client  respecting  the Location  header  Sending a header does not stop PHP execution  regardless of the client used

User · Answer

1  Using header  a built-in PHP function  a  Simple redirect without parameters   lt  php    header  Location  index php      gt    b  Redirect with GET parameters   lt  php        id   2        header  Location  index php id  id amp msg succesfully redirect        gt    2  Redirect with JavaScript in PHP  a  Simple redirect without parameters   lt  php      echo   lt script gt location href  index php   lt  script gt       gt    b  Redirect with GET parameters   lt  php       id   2       echo   lt script gt location href  index php id  id amp msg succesfully redirect   lt  script gt         gt

User · Answer

try this one    url     SERVER  HTTP REFERER     redirect  url

User · Answer

function Redirect  url   permanent   false        if  headers sent       false                header  Location       url  true    permanent     true    301   302              exit       Redirect  http   www google com    false     Don t forget to die   exit

User · Answer

I like the kind of redirection after counting seconds  lt  php  header  quot Refresh  3 url https   theweek com br   ndex php quot

User · Answer

Use the following code    header  Location   index php    exit 0

User · Answer

You can use session variables to control access to pages and authorize valid users as well    lt  php     session start         if   isset    SESSION  valid user                   header  location                exit                  Page goes here   gt    http   php net manual en reserved variables session php   Recently  I got cyber attacks and decided  I needed to know the users trying to access the Admin Panel or reserved part of the web Application   So  I added a log access for the IP address and user sessions in a text file  because I don t want to bother my database

User · Answer

There are multiple ways of doing this  but if you   d prefer php  I   d recommend the use of the header   function   Basically   your target url      www example com index php     header    Location    your target url      exit      If you want to kick it up a notch  it   s best to use it in functions  That way  you are able to add authentications and other checking elemnts in it   Let   s try with by checking the user   s level   So  suppose you have stored the user   s authority level in a session called u auth   In the function php   lt  php     function authRedirect  get auth level                             required level                             if fail link      www example com index php              if   get auth level     required level               header location    if fail link               return false              exit                      else              return true                                 You   ll then call the function for every page that you want to authenticate   Like in page php or any other page    lt  php         page php      require    function php            Redirects to www example com index php if the        user isn   t authentication level 5     authRedirect   SESSION    u auth      5           Redirects to www example com index php if the        user isn   t authentication level 4     authRedirect   SESSION    u auth      4           Redirects to www someotherplace com somepage php if the        user isn   t authentication level 2     authRedirect   SESSION    u auth      2     www someotherplace com somepage php                   References    http   php net manual en function header php

User · Answer

To redirect the visitor to another page  particularly useful in a conditional loop   simply use the following code    lt  php     header  Location  mypage php      gt    In this case  mypage php is the address of the page to which you would like to redirect the visitors  This address can be absolute and may also include the parameters in this format  mypage php param1 val1 amp m2 val2   Relative Absolute Path  When dealing with relative or absolute paths  it is ideal to choose an absolute path from the root of the server  DOCUMENT ROOT   Use the following format    lt  php     header  Location   directory mypage php      gt    If ever the target page is on another server  you include the full URL    lt  php     header  Location  http   www ccm net forum       gt    HTTP Headers  According to HTTP protocol  HTTP headers must be sent before any type of content  This means that no characters should ever be sent before the header     not even an empty space   Temporary Permanent Redirections  By default  the type of redirection presented above is a temporary one  This means that search engines  such as Google Search  will not take the redirection into account when indexing   If you would like to notify search engines that a page has been permanently moved to another location  use the following code    lt       header  Status  301 Moved Permanently   false  301       header  Location  new address      gt    For example  this page has the following code    lt       header  Status  301 Moved Permanently   false  301       header  Location   pc imprimante php3        exit      gt    When you click on the link above  you are automatically redirected to this page  Moreover  it is a permanent redirection  Status  301 Moved Permanently   So  if you type the first URL into Google  you will automatically be redirected to the second  redirected link   Interpretation of PHP Code  The PHP code located after the header   will be interpreted by the server  even if the visitor moves to the address specified in the redirection  In most cases  this means that you need a method to follow the header   function of the exit   function in order to decrease the load of the server    lt       header  Status  301 Moved Permanently   false  301       header  Location  address        exit      gt

User · Answer

Using header function for routing   lt  php      header  Location  B php         exit      gt    Suppose we want to route from A php file to B php than we have to take help of  lt button gt  or  lt a gt   Lets see an example   lt  php if isset   GET  go to page b           header  Location  B php        exit         gt    lt p gt I am page A lt  p gt   lt button name  go to page b  gt Page B lt  button gt    B php   lt p gt  I am Page B lt  p gt

User · Answer

Many of these answers are correct  but they assume you have an absolute URL  which may not be the case  If you want to use a relative URL and generate the rest  then you can do something like this      url    http         SERVER  HTTP HOST                  Get the server  url    rtrim dirname   SERVER  PHP SELF                Get the current directory  url      your-relative path-goes here                   lt -- Your relative path header  Location       url  true  302                   Use either 301 or 302

User · Answer

Yes  you can use the header   function   header  Location  http   www yourwebsite com user php       Redirect browser    exit      And also best practice is to call the exit   function right after the header   function to avoid the below code execution   According to the documentation  header   must be called before any actual output is sent

User · Answer

I ve already answered this question  but I ll do it again since in the meanwhile I ve learnt that there are special cases if you re running in CLI  redirects cannot happen and thus shouldn t exit    or if your webserver is running PHP as a  F CGI  it needs a previously set Status header to properly redirect    function Redirect  url   code   302        if  strncmp  cli   PHP SAPI  3      0                if  headers sent       true                        if  strlen session id     gt  0     If using sessions                               session regenerate id true      Avoids session fixation attacks                 session write close       Avoids having sessions lock other requests                            if  strncmp  cgi   PHP SAPI  3      0                                header sprintf  Status   03u    code   true   code                              header  Location       url  true   preg match    30 1237       code   gt  0     code   302                      exit              I ve also handled the issue of supporting the different HTTP redirection codes  301  302  303 and 307   as it was addressed in the comments of my previous answer  Here are the descriptions    301 - Moved Permanently 302 - Found 303 - See Other 307 - Temporary Redirect  HTTP 1 1

User · Answer

The best way to redirect with PHP is the following code      header  Location   index php      Make sure no code will work after  header  Location   index php      All the code must be executed before the above line   Suppose   Case 1   echo  I am a web developer   header  Location   index php      It will redirect properly to the location  index php    Case 2   return  something  header  Location   index php      The above code will not redirect to the location  index php

User · Answer

If you re running on Apache you can also use  htaccess for redirect   Redirect 301   http   new-site com

User · Answer

To redirect in php   lt  php header  Location  URL    exit    gt

User · Answer

Output JavaScript from PHP using echo  which will do the job   echo   lt script type  text javascript  gt             window location    http   www google com          lt  script gt      You can t really do it in PHP unless you buffer the page output and then later check for redirect condition  That might be too much of a hassle  Remember that headers are the first thing that is sent from the page  Most of the redirect is usually required later in the page  For that you have to buffer all the output of the page and check for redirect condition later  At that point you can either redirect page user header   or simply echo the buffered output   For more about buffering  advantages   What is output buffering

User · Answer

Most of these answers are forgetting a very important step   header  Location  myOtherPage php    die      Leaving that vital second line out might see you end up on The Daily WTF  The problem is that browsers do not have to respect the headers which your page return  so with headers being ignored  the rest of the page will be executed without a redirect

User · Answer

Summary of existing answers plus my own two cents  1  Basic answer You can use the header   function to send a new HTTP header  but this must be sent to the browser before any HTML or text  so before the  lt  DOCTYPE     gt  declaration  for example   header  Location     newURL    2  Important details die   or exit   header  quot Location  http   example com myOtherPage php quot    die     Why you should use die   or exit    The Daily WTF Absolute or relative URL Since June 2014 both absolute and relative URLs can be used  See RFC 7231 which had replaced the old RFC 2616  where only absolute URLs were allowed  Status Codes PHP s  quot Location quot -header still uses the HTTP 302-redirect code  this is a  quot temporary quot  redirect and may not be the one you should use  You should consider either 301  permanent redirect  or 303  other   Note  W3C mentions that the 303-header is incompatible with  quot many pre-HTTP 1 1 user agents  Currently used browsers are all HTTP 1 1 user agents  This is not true for many other user agents like spiders and robots  3  Documentation HTTP Headers and the header   function in PHP  What the PHP manual says What Wikipedia says What the W3C says  4  Alternatives You may use the alternative method of http redirect  url   which needs the PECL package pecl to be installed  5  Helper Functions This function doesn t incorporate the 303 status code  function Redirect  url   permanent   false        header  Location       url  true   permanent   301   302        exit       Redirect  http   example com    false    This is more flexible  function redirect  url   statusCode   303       header  Location       url  true   statusCode      die       6  Workaround As mentioned header   redirects only work before anything is written out  They usually fail if invoked inmidst HTML output  Then you might use a HTML header workaround  not very professional   like    lt meta http-equiv  quot refresh quot  content  quot 0 url finalpage html quot  gt   Or a JavaScript redirect even  window location replace  quot http   example com  quot

User · Answer

header   Location  http   www yoursite com new page html

User · Answer

Yes  it s possible to use PHP  We will redirect to another page   Try following code    lt  php     header  Location          Redirect to index file     header  Location index php       Redirect to index file     header  Location example php      gt

User · Answer

We can do it in two ways    When the user comes on https   bskud com PINCODE BIHAR index php then redirect to https   bskud com PINCODE BIHAR php  By the below PHP code   lt  php     header  Location  https   bskud com PINCODE BIHAR php        exit    gt    Save the above code in https   bskud com PINCODE BIHAR index php When any condition is true then redirect to another page    lt  php      myVar    bskud       if   myVar     bskud       gt    lt script gt  window location href  https   bskud com     lt  script gt    lt  php           else           echo   lt b gt Check the website name again lt  b gt            gt

User · Answer

Use    lt  php header  Location  another-php-file php    exit      gt    Or if you ve already opened PHP tags  use this   header  Location  another-php-file php    exit      You can also redirect to external pages  e g    header  Location  https   www google com    exit      Make sure you include exit   or include die

User · Answer

Use    lt  php     header  Location  redirectpage php        header  Location  redirectpage php        exit        echo   lt script gt location href  redirectpage php   lt  script gt      gt    This is a regular and normal PHP redirect  but you can make a redirecting page with a few seconds wait by the below code    lt  php     header  refresh 5 url redirectpage php        Note  here 5 means 5 seconds wait for redirect    gt

User · Answer

Like others here said  sending the location header with   header   Location  http   www mywebsite com otherpage php       but you need to do it before you ve sent any other output to the browser   Also  if you re going to use this to block un-authenticated users from certain pages  like you mentioned  keep in mind that some user agents will ignore this and continue on the current page anyway  so you ll need to die   after you send it

User · Answer

In the eve of the semantic web  correctness is something to consider  Unfortunately  PHP s  Location -header still uses the HTTP 302-redirect code  which  strictly  isn t the best one for redirection  The one it should use instead  is the 303 one   W3C is kind enough to mention that the 303-header is incompatible with  many pre-HTTP 1 1 user agents   which would amount to no browser in current use  So  the 302 is a relic  which shouldn t be used      or you could just ignore it  as everyone else

User · Answer

You can use some JavaScript methods like below   self location  http   www example com index php   window location href  http   www example com index php   document location href    http   www example com index php   window location replace  http   www example com index php

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