Want to got the new array that not in array A?
<p>I have two arrays:</p>

<pre><code>$A = array('a','b','c','d')
$c = array('b','c','e','f')
</code></pre>

<p>I want to get a new array containing items not in array <code>$A</code>. So it would be:</p>

<pre><code>$result = array('e','f');
</code></pre>

<p>because <code>'e'</code> and <code>'f'</code> are not in <code>$A</code>.</p>
