I\'m trying to do exactly the same thing as in my previous Python question, but in PHP. See my previous (answered) question
PHP script from previous question does someth
You can do it by placing
header('Location: second.php');
at the end of first.php and again at the end of second.php to start executing third.php and so on. Even you can create cycles between two scripts, i.e after ending first.php, second.php will be started and after executing second.php again the first.php, again second.php and so on.
But remember, this is a browser dependent feature and how many script can be executed one after another, totally depends on how many times that browser permits redirection. I found mozilla allows 23 redirections, that means you can executes 23 scripts one after another.