How to pass hidden variables when using header(location:...)?

[Bbliksted]

Hello

I'm relatively new to php... I'm trying to pass variables when using a page redirect header(location:page.php)
I know how to pass visible variables, something like:
  header(location:page.php?var=7)

but is there a way to pass the variable in a hidden form?

[wildteen88]

if you dont ant to pass the variables in the url use a session or a cookie.