[Solved] Regex scraper challenge [duplicate]

by 


 function extract_regex($subject, $regex, $index = 1)
    {
        preg_match_all($regex, $subject, $matches);
        if (count($matches[$index]))
        {
            if (count($matches[$index]) == 1)
            {
                return trim($matches[$index][0]);
            }
            return $matches[$index];        
        }
        return '';
    }

    $out = extract_regex("<label class="area"><font class="bg_info" onmouseover="land_convert_txt(this,3067)" onmouseout="tooltip_hide()">3,067 Sq. Ft.</font></label>","/<label class=\'area\'>(.*)<\/label>/i");

        echo "<xmp>". $out . "</xmp>";

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solved Regex scraper challenge [duplicate]