source: trunk/www.guidonia.net/wp/wp-content/plugins/wordpress-google-seo-positioner/includes/classes.php@ 44

<?php
/*
* Position Yourself WP Plugin Classes
*/


class Positioner {
        var $start;
        var $end;
        var $region;
        var $language;
        var $meta                       = '';
        var $num_results        = 30;
        var $queries            = array();
}


class GoogleQuery {
        /**
    * @keyword          string          The keyword
        * @region               string          The Google region (.com, .be, .nl, ...)
        * @language     string          The Google language (hl=nl, hl=en, ...)
    * @query            string          The Google keyword query string
    * @url                      string          The Google query url
    * @position         int                     The position of the domain for this keyword in Google
        * @options              string          The Google options (meta=)
        * @num_results  int                     The Google number of results to keep track of
        * @num_queries  int                     The number of Google queries
        * @results              array           The Google results
    */
        var $keyword;
        var $region;
        var $language;
    var $query;
    var $url                    = 'http://www.google.';
    var $top_position   = 0;
        var $top_url            = '';
        var $meta                       = '';
        var $num_results        = 30;
        var $num_queries        = 0;
        var $results            = array();
        var $matches            = array();
        var $competitors        = array();
        
    /**
    * PHP 4 Compatible Constructor
    */
    function GoogleQuery($keyword, $region, $language, $num_results = 30, $options = '') {
                $this->__construct($keyword, $region, $language, $num_results, $options);
        }
    
    /**
    * PHP 5 Constructor
    */          
    function __construct($keyword, $region, $language, $num_results = 30, $meta = '') {
        
        $this->keyword          = (string)      trim($keyword);
                
                $this->region           = (string)      $region;
                $this->language         = (string)      $language;
                
                $this->num_results      = (int)         $num_results;
                $this->meta                     = (string)      $meta;
                
                $this->query            = (string)      ( $this->build_query() !== false ) ? $this->build_query() : $this->keyword;
                $this->url                      = (string)      $this->build_url();
    }
    
        /**
        * Get the results for a certain keyword
        */
        function set_results() {
                //      fetch the result for the url of this queryObject
                $parse_result = array();
                $parse_result = (array)$this->parse($this->url);
                
                if ( is_array($parse_result) && count($parse_result) > 0 ) {
                        //      remove first one
                        array_splice( $parse_result, 0, 1);
                        //      remove last two
                        array_splice( $parse_result, (count($parse_result)-2), 2);
                }
                
                if ( count($parse_result) > 0 ) $this->num_queries++;
                
                $this->results = (array) $parse_result;
        }
        
        /**
        * Parses an URL through Snoopy
        * @return string
        */
        function parse($url) {
                global $snoopy;
                
                $snoopy->results = '';
                // set browser
                $snoopy->agent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.8.1.13)";

                // set a raw-header
                $snoopy->rawheaders["Pragma"] = "no-cache";
                // fetch the links of the website
                if ($snoopy->fetchlinks($url)) {
                        return $snoopy->results;
                } else {
                        return $snoopy->error;
                }
        }
        
        
        /**
        * Returns a querified representation of a keyword
        * @return string
        */
    function build_query() {
                
                $query_keyword = '';
                
                if ($this->keyword) {
                        $keyword = $this->keyword;
                        if (!preg_match('#\"(.*?)\"#i', $keyword) ) {
                                //      split on spaces
                                $keywords       = explode(' ', $keyword);
                                //      url encode each part
                                $keywords       = array_map("urlencode", $keywords);
                                //      glue back together with +
                                $query          = implode("+", $keywords);
                        } else {
                                $query = urlencode($keyword);
                        }
                        return $query;
                } else 
                        return false;
    }
        
        /**
        * Returns the url of the Google query
        * @return string
        */
    function build_url() {
                
                $url  = '';
                $url  = $this->url;
                $url .= $this->region;
                $url .= "/ie?hl=". $this->language;
                $url .= "&q=".$this->query;
                $url .= "&num=".$this->num_results;
                $url .= "&sa=N";
                $url .= "&filter=0";
                $url .= $this->options;

        return $url;
    }
        
        /**
        * Returns matches in an array as an array
        * @return array
        */
    function find_matches($results, $url) {
                $matches = array();
                $matches = preg_grep("#^$url#", $results);
                
                if ( count($matches) > 0 ) {
                        $this->matches = $matches;

                        return $matches;
                } else
                        return 0;
        }
        
        /**
        * Returns highest position in matches
        * @return int
        */
    function find_top_position() {
                
                if ( count($this->matches) > 0 ) {
                        $top = 0;
                        while ($top == 0 && (list($position, $url) = each($this->matches))) {
                                $top            = (int)((int)$position + 1);
                                $top_url        = $url;
                        }               
                        $this->top_position = $top;
                        $this->top_url          = $top_url;
                }
        }
        
        /**
        * Returns highest competitor position in competitormatches
        * @return int
        */
    function find_top_competitor_position($results) {
                
                $top["position"]        = 0;
                $top["url"]                     = '';
                
                if ( is_array($results) ) {
                
                        while ( $top["position"] == 0 && (list($position, $url) = each($results) ) ) {
                        
                                $top["position"]        = (int)((int)$position + 1);
                                $top["url"]                     = $url;
                        }
                }
                return $top;
        }
        
        /**
        * Returns a string representation of a query
        * @return string
        */
    function to_string($display = 'raw') {
                switch($display) {
                        case "list": {
                                echo "<br />print as list";
                        }
                        break;
                        
                        case "row": {
                                echo "<br />print as table row";
                        }
                        break;
                        
                        case "raw": {
                                pyPre($this);
                        }
                        break;
                }
        //return $string;
    }
}
?>