Merging data in "type array" elements in an array, together in a new array
<p>I think I blew you away by the title. But here's what I exactly need:</p>

<p>I have an array like this:</p>

<pre><code>array(
 '0' =&gt; array( 'the','data','i'),
 '1' =&gt; array( 'need', 'is', 'this'),
 '2' =&gt; array( 'complete', 'sentence')
);
</code></pre>

<p>which I want to become:</p>

<pre><code>array(
 'the','data','i','need','is','this','complete','sentence'
);
</code></pre>

<p>What's random:</p>

<ol>
<li>The number of elements in a child array element.</li>
<li>The number of child array elements.</li>
</ol>
