$re = '/<ul.*?">(.*?)<\/ul>/s';
$str = '<div id="outer">
<ul id="ancTop">
<li style="font-family: arial; font-size: 9pt;">
<div style="overflow: hidden; width: 690px; height: 17px;">
<a href="#">
A90 - Lorem Ipsum
</a>
</div>
</li>
<li style="font-family: arial; font-size: 9pt;">
<div style="overflow: hidden; width: 690px; height: 17px;">
<a href="#">
A85 - Lorem Ipsum
</a>
</div>
</li>
</ul>
</div>';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php