$text =
'<ul style="list-style:none;">
  <li>
      <a href="files/docs/qwe.xls" target="_blank">Link1</a>
  </li>
  <li>
      <a href="files/docs/ere.xls" target="_blank">Link2</a>
  </li>
  <li>
      <a href="files/docs/123.xls" target="_blank">Link3</a>
  </li>
</ul>';

$filePath[0] = "files/docs/qwe.xls";
$fileName[0] = "Link1";
$filePath[1] = "files/docs/ere.xls";
$fileName[1] = "Link2";
$filePath[2] = "files/docs/123.xls";
$fileName[2] = "Link3";

$res = array();
      preg_match_all('/href="(.+?)".*?>(.+?)<\/a>/ims', $text, $res);
      echo "<pre>";
      print_r($res);
      echo "</pre>";