<?PHP
/**
 *  - A Simple Meta Tag Harvester
 * 
 * @author Ilyas Serter
 * @version 1.0  - Sep 8, 2011
 * @link http://www.lampdeveloper.org
 * 
 */

class metaTagHarvester
    {
        const KEYWORDS = '#<meta name="keywords" content="(.+)"(.{1,3})>#i';
        const DESCRIPTION = '#<meta name="description" content="(.+)"(.{1,3})>#i';
        const TITLE = '#<title>(.+)</title>#';
        
        public $url;
        
        public static function harvestAll($source)
            {
                $keywords = self::harvestKeywords($source);
                $descriptions = self::harvestDescription($source);
                $title = self::harvestTitle($source);
                return array('title' => $title[1],'keywords' => $keywords[1],'description' => $descriptions[1]);
            }
        
        public static function harvestKeywords($source)
            {
                preg_match(self::KEYWORDS,$source,$match);
                return $match;
            }
        
        public static function harvestDescription($source)
            {
                preg_match(self::DESCRIPTION,$source,$match);
                return $match;
            }
            
        public static function harvestTitle($source)
            {
                preg_match(self::TITLE,$source,$match);
                return $match;
            }
        
    }
?>

<?PHP
include 'harvestData.php';
$harvester = new metaTagHarvester();
$source = file_get_contents('http://www.oxera.net');
var_dump($harvester->harvestAll($source));
?>

array(3) {   ["title"]=>   string(65) "Web Development and SEO Services in Seattle - Oxera Web Solutions"   ["keywords"]=>   string(105) "seo,search engine optimization,web development,seattle,seattle seo service,seattle web design,seattle seo"   ["description"]=>   string(105) "Looking for web development and SEO services in Seattle? Come right in, and see what Oxera offers to you!" }