How to extract hyperlink using php - php

Question

I have searched online and thought this would work but it doesn't for some reason. I'm trying to extract a hyperlink that only displays it's URL from a HTML. I'm only trying to extract the URL within the td align="center". Here is a sample of the HTML doc I'm trying to extract:
<td>
Aug 17
</td>
<td>
FT
</td>
<td align="right">
Arsenal ruby
</td>
**<td align="center">**
1-3
</td>
<td>Aston Villa</td>
<td style="text-align:right;">60,003</td>
And here is my PHP code to extract it from the td align="center":
<?php
//$searchURL = "site";
include 'simple_html_dom.php';
$site = 'website';
$html = file_get_html($site);
$tabledata = array();
// Find all TD tags with "align=center"
foreach($html->find('td[align=center]') as $e)
echo $e->href . '<br>';
?>
I know the code works because the code can extract everything if it is just the td within the barracks.

Answer 1

So you have identified the <td> elements themselves, but you did not go down to the next nesting level to grab the href from the <a> elements. You might do that like this:
foreach($html->find('td[align=center]') as $e)
echo $e->children(0)->href . '<br>';

Answer 2

Use the DOM and Xpath:
Select all td elements in the document
//td
Only if the align attribute equals "center"
//td[#align="center"]
Get the a sub elements
//td[#align="center"]//a
Get the href attribute nodes of that a elements
//td[#align="center"]//a/#href
Source example:
$html = <<<'HTML'
<td>
FT
</td>
<td align="right">
Arsenal ruby
</td>
**<td align="center">**
1-3
</td>
<td>Aston Villa</td>
<td style="text-align:right;">60,003</td>
HTML;
$dom = new DOMDocument();
$dom->loadHTML($html);
$xpath = new DOMXpath($dom);
$nodes = $xpath->evaluate('//td[#align="center"]//a/#href');
foreach ($nodes as $node) {
var_dump($node->value);
}

Answer 3

You selected the td element. The anchor element is the child of the td element.
// Find all TD tags with "align=center"
foreach($html->find('td[align=center]') as $e)
echo $e->firstChild()->getAttribute('href') . '<br>';