Classes.ScriptsPHP.org - Ressources PHP

PHP5 Source codes

Recherche sur le web

Ce formulaire vous permet d'effectuer des recherches sur le web (ou sur ce site) en utilisant les moteurs de recherche Yahoo ou Google.
Ce «meta-moteur» est basé sur les API :

Source PHP de la classe Yahoo

<?php

class YahooWebSearch  {

    private $APIURL = 'http://api.search.yahoo.com/WebSearchService/V1/webSearch';
    private $LicenceKey = '';
    static $Instance = false;

    private function __construct() {
        $this->LicenceKey = YAHOO_LICENCE_KEY;
    }

    static function GetInstance() {
        if(empty(self::$Instance)) {
            self::$Instance = new YahooWebSearch();
        }
        return self::$Instance;
    }

    public function search($query, $start=0, $results=10, $similar_ok=false, $adult_ok=false, $lang='fr') {
        // ----------------------------------
        // paramètres non pris en compte :
        $type = 'all';
        $format = 'all';
        $country = '';
        // ----------------------------------

        $s['appid'] = $this->LicenceKey;
        $s['query'] = urlencode(utf8_encode($query));

        // ------------------------------------------------------------
        // Non utilisé
        if($type == 'any' || $type == 'phrase' || $type == 'all') {
            $s['type'] = $type;
        }
        $formats_ok = array('html', 'msword', 'pdf', 'rss', 'ppt', 'xls', 'txt');
        if(in_array($format, $formats_ok)) {
            $s['format'] = $format;
        }
        // ------------------------------------------------------------
        if($results > 0 || $results <= 50) {
            $s['results'] = $results;
        }
        // Google démarre à 0, Yahoo à 1
        if($start >= 0) {
            $s['start'] = $start+1;
        }
        if($adult_ok == 1) {
            $s['adult_ok'] = 1;
        }
        if($similar_ok == 1) {
            $s['similar_ok'] = 1;
        }
        $s['language'] = $lang;

        foreach($s as $param => $value) {
            $search[] = $param.'='.$value;
        }

        $xml = @simplexml_load_file($this->APIURL.'?'. implode('&', $search));
        if(!is_object($xml)) {
            throw new Exception('REST error : unable to load XML file');
            return false;
        }
        return $this->toArray($xml, $query);
    }

    private function toArray($XMLObject, $search) {
        $ret['Search'] = $search;
        foreach($XMLObject->attributes() as $key => $val) {
            if($key == 'totalResultsAvailable') {
                $ret['TotalResults'] = (int)$val;
            } elseif($key == 'firstResultPosition') {
                $ret['Start'] = (int)$val;
            }
        }
        $i = 1;
        foreach($XMLObject->Result as $val) {
            $ret['Results'][$i = ++$i+1] = array(
            'Title' => (string)utf8_decode($val->Title),
            'URL' => (string)$val->Url,
            'Summary' => (string)utf8_decode($val->Summary)
            );
        }
        return $ret;
    }

}
?>