百度实时推送新发布文章的api接口应用示例（socketopen方式推送sitemap）

网站质量不错的网站可以在百度站长平台/数据提交/sitemap栏目下看到实时推送的功能, 目前这个工具是邀请开放, 百度的实时推送的api接口可以实时推送我们新发布的文章, 保证百度在第一时间收录.
 
百度站长平台 http://zhanzhang.baidu.com/

打开百度站长平台, 点开实时推送的添加新数据接口获得带token的api推送地址：
 
  http://ping.baidu.com/sitemap?site=www.yourdomain.com&resource_name=sitemap&access_token=xxxxxxx 
 

分享一段网友写的php实时推送代码: 

php 实时推送新发布的文章

socketopen方式推送sitemap

  function sitemap_ping_baidu($urls){
          $baidu_ping_url = 'ping.baidu.com';
          $get = '/sitemap?site=www.yourdomain.com&resource_name=sitemap&access_token=xxxxxxx';
          $port=80;
          if ( ( $io = fsockopen( $baidu_ping_url, $port, $errno, $errstr, 50 ) ) !== false )  {
              $send = "POST $get HTTP/1.1"."rn";
              $send .= 'Accept: */*'."rn";
              $send .= 'Cache-Control: no-cache'."rn";
   
            $send .= 'Host: '.$baidu_ping_url."rn";
            $send .= 'Pragma: no-cache'."rn";
            //$send .= "Referer: http://".$url.$get."rn";
            //$send .= 'User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)'."rn";
             
            $xml = '<?xml version="1.0" encoding="UTF-8"?><urlset>';
            foreach($urls as $url){
                $xml .= '<url>';
                $xml .= '<loc><![CDATA['.$url.']]></loc>';
                $xml .= '<lastmod>'.date('Y-m-d').'</lastmod>';
                $xml .= '<changefreq>monthly</changefreq>';
                $xml .= '<priority>0.8</priority>';
                $xml .= '</url>';
            }
            $xml .= '</urlset>';
            $send .= 'Content-Length:'.strlen($xml)."rn";
            $send .= "Connection: Closernrn";
            $send .= $xml."rn";
            fputs ( $io, $send );
            $return = '';
            while ( ! feof ( $io ) )
            {
                $return .= fread ( $io, 4096 );
            }
            return $return;
        }else{
            return false;
        }
    }
 $return = sitemap_ping_baidu(array('http://www.yourdomain.com/a.php?id=1')); 

推送后百度会返回的xml文档

  <?xml version="1.0" encoding="UTF-8"?>
      <methodResponse>
          <params>
              <param>
                  <value>
                      <int>200</int>
                  </value>
              <param>
          </params>      
      </methodResponse> 

状态码含义如下