[SOLVED] functions

[plutomed]

I have 2 functions and I use one function inside another but inside the first function I have a varible that I want to use in the second functions and it doesn't seem to work. Let me give you an example:

 

<?php
function a()
{
      $a = bob;
}

function b()
{
      a();
      echo $a;
}
?>

 

I know that is stupid but it's an example! The thing is that php won't echo $a. Why?

[akitchin]

because $a isn't defined in the scope of the second function.  everything that occurs within a function is restricted to its scope, unless it is passed upward to the caller using return or was passed to the function via reference in the first place:

 

<?php
function a()
{
      $a = 'bob';
      return $a;
}

function b()
{
      $a = a();
      echo $a;
}
?>

[plutomed]

Oh right I understand now cheers mate