confusing preg_match_all function

[thamizhinpan]

<table >
  <tr>
    <td></td>
  </tr>
  <tr>
    <td class=\"Contents\">
		<p>Large Paragraph1....</p>
		<p>Large Paragraph1....</p>
		<p>Large Paragraph1....</p>
		<p>Large Paragraph1....</p>
	</td>
  <tr>
    <td class=\"Contents\">
		<p>Large Paragraph 2</p>
		<p>Large Paragraph 2</p>
		<p>Large Paragraph 2</p>
		<p>Large Paragraph 2</p>
		<p>Large Paragraph 2</p>
	</td>

  </tr>
</table>

I want to get contents of cell which contains ID as MainCell.
So I have wrote a sample php code like this

<?php $html="<table >
  <tr>
    <td></td>
  </tr>
  <tr>
    <td class=\"Contents\">
        <p>Large Paragraph1....</p>
        <p>Large Paragraph1....</p>
        <p>Large Paragraph1....</p>
        <p>Large Paragraph1....</p>
    </td>
  <tr>
    <td class=\"Contents\">
        <p>Large Paragraph 2</p>
        <p>Large Paragraph 2</p>
        <p>Large Paragraph 2</p>
        <p>Large Paragraph 2</p>
        <p>Large Paragraph 2</p>
    </td>

  </tr>
</table>";


    preg_match_all('#<td class=\"Contents\">(.+?)</td>#', $html, $MainHeads);


echo "<table>";
    foreach ($MainHeads[1] as $Contents) 
    {
    echo("<tr>");
    echo("<td>.$Contents.</td>");
    echo("</tr>");
    }
echo "</table>";
?>

But this is not working, What's wrong on this code?



Note: When I change $html like this

$html="<table >
  <tr>
    <td></td>
  </tr>
  <tr>
    <td class=\"Contents\"><p>Large Paragraph1....</p></td>
  <tr>
    <td class=\"Contents\"><p>Large Paragraph 2</p></td>
  </tr>
</table>"; 

It is working