how to refresh a page with php?

In fact I think it is only headerdefined for this purpose, when you have:

header("Location: URL");

..."Location:" Not only sends the header to the browser, but also returns the (302) REDIRECT status code to the browser unless the 201 or 3xx status code has already been sent.

As described on the official site: http://php.net/manual/es/function.header.php

An important aspect to consider is that you should avoid exits prior to the execution of this statement, since things like these could cause problems:

Example 1: a common output.

<div>contenido antes del header</div>
<?php
header("Location: URL");

Example 2: Any output, even a line break

·
<?php
header("Location: URL");

Keep in mind that although this can be partially solved with ob_start as indicated here http://php.net/manual/es/function.ob-start.php

This function will trigger buffering of the output. As long as such storage is active, no output will be sent from the script (apart from headers); instead the output will be stored in an internal buffer.

<?php
  ob_start();
  echo "A partir de ob_start ninguna salida es mostrada directamente
      Son almacenadas en el buffer y por tanto podemos ejecutar header
      sin ninguna preocupación.";
  header("Location: http://php.net/manual/es/function.ob-start.php");
?>

While the above works, the snippet below will not:

Está salida no debió existir, incluso un salto de linea aquí puede ser peligroso
<?php
  ob_start();
  header("Location: http://php.net/manual/es/function.ob-start.php");
?>

you may find this article on the subject entertaining .

Another option is to generate a temporary page that performs the task "this would be useful to give the server a break in executions that are too long, since it is on the client where the redirection is triggered"

As an alternative to redirect your page you can use the meta tag, like this:

<meta http-equiv="Refresh" content="TIEMPO;url=URL">

where:

• TIME: is the number of seconds that must elapse until the redirection becomes effective.
• URL: is the web address where you want the user to be redirected.

An extra option is to use javascript, as mentioned above these alternatives can be used if you want to display a transient page «Like those with the message, "You are redirecting to the site..."».

Yes there is a way:

$archivoActual = $_SERVER['PHP_SELF'];
header("refresh:1;url=" + $archivoActual +"));

The parameter that refresh receives is time in seconds, so if you put no se 15 the page would not be redirected until 15s after the php is executed.

$_SERVER['PHP_SELF´];

What the above line does is get the current file path so you don't need to put a specific url if you're going to use that same code on different pages, but if you want to put a different url anyway you can put it, just replace what's after url with whatever path you want.

Cheers!

It can help you:

header("location:pagina.php");

What this does is that it redirects you to pagina.phpwhen it reaches that line of php code .

These are other forms of redirection:

Option 1:

$url='tu/url';
echo '<meta http-equiv=refresh content="1; '.$url.'">';
die;

Option 2:

die('<script type="text/javascript">window.location=\''.$url.'\';</script‌​>');