Calling function from template

[ZomgStuff]

I'm a noob so sorry, but here is my question.

I want to call a php function from a template.

Basically in the php file lets say I have a function

function test($testvariable) {
echo $testvariable;
}

$testcall = test("lol");

Now how can I call $testcall from a template?

Thanks

[Marco van Herwaarden]

You can't. Templates are HTML, not PHP.

Create a plugin with your PHP code. If needed asign the output to a variable that can be used in your templates.

[ZomgStuff]

That makes sense, thank you.