[php] Refresh a page using PHP

How can I refresh a page using PHP periodically? If I can not do it by PHP, what is the best recommended scenario?

One trick is to add a random number to the end of the URL. That way you don't have to rename the file every time. E.g.:

echo "<img src='temp.jpg?r=3892384947438'>"

The browser will not cache it as long as the random number is different, but the web server will ignore it.

Adding this meta tag in PHP might help:

echo '<META HTTP-EQUIV="Refresh" Content="0; URL=' . $location . '">';

header('Location: .'); seems to refresh the page in Chrome, Firefox, Edge, and Internet Explorer 11.

You cannot do it in PHP. Once the page is loaded, PHP dies and is out of control.

You have a few options:

• Use JavaScript
• Use the refresh meta tag, <meta http-equiv="refresh" content="5">

I think that the refresh meta tag is the easiest and most convenient.

In PHP you can use:

$page = $_SERVER['PHP_SELF'];
$sec = "10";
header("Refresh: $sec; url=$page");

Or just use JavaScript's window.location.reload().

You can refresh using JavaScript. Rather than the complete page refresh, you can give the contents to be refreshed in a div. Then by using JavaScript you can refresh that particular div only, and it works faster than the complete page refresh.

Besides all the PHP ways to refresh a page, the page will also be refreshed with the following HTML meta tag:

<meta http-equiv="refresh" content="5">

See Meta refresh - "automatically refresh the current web page or frame after a given time interval"

You can set the time within the content value.

PHP is server-side language, so you can not refresh the page with PHP, but JavaScript is the best option to refresh the page:

location.reload();

The visit Location reload() method.

You sure can refresh a page periodically using PHP:

<?php
    header("refresh: 3;");
?>

This will refresh the page every three seconds.

I've found two ways to refresh PHP content:

1. Using the HTML meta tag:

echo("<meta http-equiv='refresh' content='1'>"); //Refresh by HTTP 'meta'

2. Using PHP refresh rate:

$delay = 0; // Where 0 is an example of a time delay. You can use 5 for 5 seconds, for example!
header("Refresh: $delay;"); 

That is simply possible with header() in PHP:

header('Refresh: 1; url=index.php');

Echo the meta tag like this:

URL is the one where the page should be redirected to after the refresh.

echo "<meta http-equiv=\"refresh\" content=\"0;URL=upload.php\">";