How to use own php variables in wordpress template?

Question

I am using a wordpress template in php like this:

...Hello World...



        

Answer 1

The $test variable is empty because the header is included by a function, hence effectively 'in' the function, and more importantly, in a different scope.. think of it like

function get_header()
{
  $test = '1234';
}
get_header();
echo $test; // won't work because test is in a different scope

you can however use globals, or $_SESSION variables, or create a static class to hold variables in that can be called from anywhere.

the global option is probably the quickest fix here (not necessarily the strictest though).

$GLOBALS['test'] = "Blabla";
get_header();

.. inside a wordpress header template:
echo $GLOBALS['test'];

hope that helps