Dulu saya sudah bahas bagaimana cara bikin search engine di WordPress pake Bing, juga mesin pencari pake Google. Sekarang bagaimana kalo kita tambahkan satu lagi pake Yahoo Boss dan menggabungkan semuanya jadi satu. Jadi search engine di halaman hasil pencarian wp-nya pake Bing, Google dan Yahoo Boss. Tanpa basa-basi embat aja langsung skrip-nya sob (modifikasi dikit aja kok dari yang dulu, langkahnya juga sama.)

Kode 1 (Script proses keyword) – Buka search.php dan tempatkan Kode berikut di paling atas sebelum kode <?php get_header(); ?>

 &$val) {
if (is_array($val)) $val = implode(',', $val);
$post_params[] = $key.'='.urlencode($val);
}
$post_string = implode('&', $post_params);
$fullurl = $url."?".$post_string;
$ch = curl_init();curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);curl_setopt($ch, CURLOPT_URL, $fullurl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040608'); //kamu bisa pake user agent yang lain, lihat listnya di sini www.user-agents.org
$result = curl_exec($ch);curl_close($ch);
return $result;
}
function perform_bing_web_search($termstring){$searchurl = 'http://api.bing.net/json.aspx?';
$searchurl .= 'AppId='.'ABCDEFG'; //ganti ABCDEFG dengan kode api BING http://www.bing.com/developers/appids.aspx
$searchurl .= '&Query='.urlencode($termstring);
$searchurl .= '&Sources=Web';
$searchurl .= '&Web.Count=10'; //jumlah list situs yang dihasilkan
$searchurl .= '&Web.Offset=0';
$searchurl .= '&Web.Options=DisableHostCollapsing+DisableQueryAlterations';
$searchurl .= '&JsonType=raw';
$response = pete_curl_get($searchurl, array());
$responseobject = json_decode($response, true);if ($responseobject['SearchResponse']['Web']['Total']==0)return array();
$allresponseresults = $responseobject['SearchResponse']['Web']['Results'];
$result = array();
foreach ($allresponseresults as $responseresult){$result[] = array('url' => $responseresult['Url'],'title' => $responseresult['Title'],'abstract' => $responseresult['Description'],);
}return $result;
}
function perform_google_web_search($termstring)
{
$start = 0;
$result = array();
while ($start<10) //kamu bisa ganti angka "10" untuk jumlah list  yang ditampilkan
{
$searchurl = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0';
$searchurl .= '&key='.'ABCDEFG'; //ganti ABCDEFG dengan kode api Google http://code.google.com/apis/ajaxsearch/signup.html
$searchurl .= '&start='.$start;
$searchurl .= '&rsz=large'; //kamu bisa pake "small" untuk menampilkan hanya 4 (maksimal) pencarian
$searchurl .= '&filter=0'; //kamu bisa ganti "filter=1" untuk mem-filter hasil pencarian
$searchurl .= '&q='.urlencode($termstring);
$response = pete_curl_get($searchurl, array());
$responseobject = json_decode($response, true);
if (count($responseobject['responseData']['results'])==0)
break;
$allresponseresults = $responseobject['responseData']['results'];
foreach ($allresponseresults as $responseresult)
{
$result[] = array(
'url' => $responseresult['url'],
'title' => $responseresult['title'],
'abstract' => $responseresult['content'],
);
}
$start += 8;
}
return $result;
}
function perform_boss_web_search($termstring)
{
$searchurl = 'http://boss.yahooapis.com/ysearch/web/v1/';
$searchurl .= urlencode($termstring);
$searchparams = array(
'appid' => 'ABCDEFG', //ganti ABCDEFG dengan kode api Yahoo Boss https://developer.apps.yahoo.com/projects/projects
'format' => 'json',
'count' => '10',
);
$response = pete_curl_get($searchurl, $searchparams);
$responseobject = json_decode($response, true);
error_log(print_r($responseobject, true));
if ($responseobject['ysearchresponse']['totalhits']==0)
return array();
$allresponseresults = $responseobject['ysearchresponse']['resultset_web'];
$result = array();
foreach ($allresponseresults as $responseresult)
{
$result[] = array(
'url' => $responseresult['url'],
'title' => $responseresult['title'],
'abstract' => $responseresult['abstract'],
);
}
return $result;
}if (isset($_REQUEST['s'])) {
$termstring = urldecode($_REQUEST['s']);
} else {
$termstring = '';}
?>

Kode < ?php pada kode 1 line 1 agak terpisah tuh, dirapatkan aja kek gini <?php. Kode line 39 while ($start<10) jadinya gini while ($start<10).