玩过WORDPRESS的朋友应该都知道ping服务吧，通俗点讲它可以在更新文章的时候向Google、baidu及其他支持ping的搜索引擎发送指令然后招呼它们过来，不用傻等他们过来收录了，化被动为主动了。直接贴代码了，很简单的。
class ping { public $method, $callback; public function method($site_name, $site_url, $update_url, $update_rss) { $this->method = " weblogUpdates.extendedPing {$site_name} {$site_url} {$update_url} {$update_rss} "; return $this->method; } public function _post($url, $postvar) { $ch = curl_init(); $headers = array( "POST " . $url . " HTTP/1.0", "Content-type: text/xml;charset="utf-8"", "Accept: text/xml", "Content-length: " . strlen($postvar) ); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_POSTFIELDS, $postvar); $res = curl_exec($ch); curl_close($ch); return $res; } public function google() { $this->callback = $this->_post('http://blogsearch.google.com/ping/RPC2', $this->method); return strpos($this->callback, "0 ") ? true : false; } public function baidu() { $this->callback = $this->_post('http://ping.baidu.com/ping/RPC2', $this->method); return strpos($this->callback, "0 ") ? true : false; } }
