$re = '~\s*<div class="results-count">[^\n]*\n\K.*?(?=\n\s*<div class="clear"></div>)~s';
$str = 'RUBBISH
RUBBISH
.
.
.
<div class="span9">
<div class="results-count">AAA</div>
<div class="AA">
<div class="A"><a href="/TEST">BBB</a>
</div>
<div class="BB"><span>CCC</span><br/><a href="/TEST1" class="B">DDD</a>
<div></div><span>EEE</span><br/><img src="TEST2" title="C"/><a href="/TEST3" class="D">FFF</a>,
<a href="/TEST4" class="E">GGG</a>
<div class="clear"></div><a href="/TEST5" class="details">Details</a>
</div>
<pre>HHH</pre>
<div class="clear"></div>
.
.
.
<div class="span9">
<div class="results-count">AAA</div>
<div class="AA">
<div class="A"><a href="/TEST">BBB</a>
</div>
<div class="BB"><span>CCC</span><br/><a href="/TEST1" class="B">DDD</a>
<div></div><span>EEE</span><br/><img src="TEST2" title="C"/><a href="/TEST3" class="D">FFF</a>,
<a href="/TEST4" class="E">GGG</a>
<div class="clear"></div><a href="/TEST5" class="details">Details</a>
</div>
<pre>HHH</pre>
<div class="clear"></div>
RUBBISH
RUBBISH
<div class="span9">
<div class="results-count">AAA</div>
<div class="AA">
<div class="A"><a href="/TEST">BBB</a>
</div>
<div class="BB"><span>CCC</span><br/><a href="/TEST1" class="B">DDD</a>
<div></div><span>EEE</span><br/><img src="TEST2" title="C"/><a href="/TEST3" class="D">FFF</a>,
<a href="/TEST4" class="E">GGG</a>
<div class="clear"></div><a href="/TEST5" class="details">Details</a>
</div>
<pre>HHH</pre>
<div class="clear"></div>
.
.
.';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($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