help with functions

michaewlewis

really simple script... can't make it work.
how do you make $b in b() print in a()?

<?
a();

function a() {
  $a = "This is a<br>";
  print "$a";
  b();
  print "$b";
}

function b() {
  $b = "this is b<br>";
  return $b;
}

?>

Houdini

Because the varialbe $b has no value out of its function because of its scope, if you really want the thing to work you need to declare the $b variable global. This will print;
This is a
this is b

<?
a();
function a() {
  global $b;
  $a = "This is a<br>";
  print "$a";
  b();
  print "$b";
}

function b() {
  global $b;
  $b = "this is b<br>";
  return $b;
} 
?>

michaewlewis

Do you have declare it global in every function then?
Is there a better way to do this?

Houdini

First learn about variable scope here. I am not sure just what it is you are trying to do but you might have to rethink your process or method of doing it.