PHP functions 101 question, really simple
<p>I'm kind of slow in the head so can someone tell me why this isn't working:</p>

<pre><code>function foo() {
    $bar = 'hello world';
    return $bar;
}

foo();

echo $bar;
</code></pre>

<p>I just want to return a value from a function and do something with it.</p>
