My function is ignoring variables?!?

[Geekman]

I have a php script. I defined a variable outside of a function, but i cannot echo the variable inside the function.

 

When I execute this:

<?PHP
$testvar = "test worked!";

testfunction();

function testfunction(){
    echo $testvar;
}
?>

 

Nothing happens. what am i doing wrong.

I did this on my local host. Apache running on Windows Vista Ultimate 32 bit Edition.

 

Thanks in advance.

[trq]

Functions have there own scope. You need to pass variables into them.

 

function testfunction($str){
    echo $str;
}

$testvar = "test worked!";

testfunction($testvar);

[Geekman]

So I have to include every single variable i need in the Parenthesis?

[trq]

Yes.