用php实现Google /Baidu Ping服务快速收录

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。

/**
+------------------------------------------------------------------------------
* 通知搜索引擎过来抓去最新发布的内容。秒收不是梦
* 目前仅支持Google和Baidu
+------------------------------------------------------------------------------
*/
class ping {

public $method, $callback;

public function method($site_name, $site_url, $update_url, $update_rss) {
$this->method = "
<?xml version="1.0" encoding="UTF-8"?>
<methodCall>
<methodName>weblogUpdates.extendedPing</methodName>
<params>
<param><value>{$site_name}</value></param>
<param><value>{$site_url}</value></param>
<param><value>{$update_url}</value></param>
<param><value>{$update_rss}</value></param>
</params>
</methodCall>";
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, "<boolean>0</boolean>") ? true : false;
}

public function baidu() {
$this->callback = $this->_post('http://ping.baidu.com/ping/RPC2', $this->method);
return strpos($this->callback, "<int>0</int>") ? true : false;
}

}