CODEWITHSUNDEEP
phpjavascripthttp-redirectheadermeta
cream
cream

Reputation: 1129

What's a good way to refresh a page with PHP?

This seems like it should be simple enough but I'm having a little trouble.

I have an index page which is both the login page and the main content page, depending on whether or not a session variable is set.

I've tried using JavaScript which is echoed from PHP to handle redirects but it looked sloppy and takes a little bit of time, so I switched to using header("location: abc.php"). The problem with using that for the index page is that it doesn't work after output is sent. I've also tried using a meta tag to refresh the page but that doesn't work in all browsers.

What's the best way to handle this situation?

Thanks in advance.

Upvotes: 0

Views: 673

Answers (4)

Barmar
Barmar

Reputation: 781130

Does this do what you want?

<?php
session_start();

if ($_SESSION['logged_in']) {
  header("Location: mainpage.php");
  exit();
}

// Display login form

Upvotes: 0

Nudier Mena
Nudier Mena

Reputation: 3274

you can try this

JAVASCRIPT

function timedRefresh(timeoutPeriod) {
setTimeout("location.reload(true);",timeoutPeriod);
 }

HTML

 <!--The page will refresh every 5 seconds.-->   
 <body onload="timedRefresh(5000)">

Upvotes: -1

Mayo Watro
Mayo Watro

Reputation: 45

<?php
session_start();

//all of the php code goes here

header("location: samepage.php")

?>

make sure your all code of php is at top level of your browser and not using any echo command - else you will end up showing something that is echo at the top of the page - instead of using echo command use variable that are more reliable then use variable in html body where necessary.

Upvotes: 1

HungryCoder
HungryCoder

Reputation: 7616

You can use any of them. However, header("location: abc.php") will not work after sending response! The work around is simple. Use output buffering. 

<?php
ob_start()

//here goes many lines of your wonderful php code blocks

//now send the header based on your logic
header("location: abc.php")

ob_end_flush()

Please check the official docs for more info

Update: You can consider the suggestion of @zerkms. If you really need to silently redirect to other page, do that before sending any outputs using header() function. However, if you want to show that you are redirecting him/her, you can use javascript as you were using! For the latter, you can also use Meta Refresh

<meta http-equiv="refresh" content="5;URL='http://example.com/'">

ob_start() will be helpful for this. Because, you will probably show many things on the page and then tell that he/she will be redirected momentarily. The above example will redirect user to example.com in 5 seconds.

Upvotes: 1

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