refresh a page using PHP

Anon

i'm writing a program which using PHP and get data from MySQL. In the
first page, part 1 is the data that i selected from the database and part
2 is used to update the existing data. After i update the data and click
submit, it jumps to another page and also update the database. In this
page, i have made a link back to the first page. But when i click the back
to the first page, the data in part 1 is the old data and i need to click
the refresh button in order to display the new data. So, i think i need to
insert some php code in this page to refresh it when it loads. But i don't
know the code to refresh the page automatically. So, can you show me how
to do it and do you have any other idea to solve this problem ?
Thx

Anon

you can't use php, you have to insertphp that inserts javascript that will refresh the page if the conditions are met.

Anon

Umm..beg to differ.

a)
you could use meta tags
<META HTTP-EQUIV="Refresh" Content= "0; URL=page_a.php">

b) (even better) use
<?php
header("Location: page_a.php");
?>

No need for Javascript there. The second option is the best one since people can disable meta refresh in their browsers (just like Javascript).

Anon

I agree with coffee. I use the header function to do what you want all the time. Just be sure the page doing the updates does not send any white space at all to the browser. If that is absolutely unavoidable, then have php output javascript something like:

$url = "someplace.php";
echo "<script>window.location=\"$url\"</script>";