how to switch to another page in 3 seconds in PHP?

php, refresh

Solution

This should work, in PHP:

header('Refresh: 3; url=index.php');

Problem

Here is my try: ``` @header("Content-type: text/html; charset=utf-8"); @header("Location:/index.php"); @header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 @header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past ``` As you have seen,there is no control over "3 seconds",how to make it take effect in 3 seconds?

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