PHP : Find contents between a HTML TAG
<p>MY HTML looks like this which i get it in a PHP string $output, what i need to do is split the string to display only the contents in between <code>&lt;!-- start Default Content //--&gt; AND &lt;!-- end Default Content //--&gt;</code></p>

<pre><code>&lt;html&gt; 
    &lt;head&gt; 
        &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /&gt; 
        &lt;title&gt;Multimedia Message&lt;/title&gt; 
    &lt;/head&gt; 
    &lt;body leftmargin="0" topmargin="0"&gt; 


                &lt;tr height="15" style="border-top: 1px solid #0F7BBC;"&gt; 
                    &lt;td&gt; 
                        &lt;!-- start Default Content //--&gt;

sdf sdf


sd fsd
&lt;br&gt; &lt;/br&gt;
s
df
sd
f 
s
&lt;!-- end Default Content //--&gt;
                    &lt;/td&gt; 
                &lt;/tr&gt; 


     &lt;/body&gt; 
&lt;/html&gt; 
</code></pre>
