php使用百度ping服务代码实例

代码实例：

    <?php

    function postUrl($url, $postvar)
    {
      $ch = curl_init();
      $headers = array(
        "POST".$url."HTTP/1.0",
        "Content-type: text/xml; charset=\"gb2312\"",
        "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;
    }

    $baiduXML = "<?xml version=\"1.0\" encoding=\"gb2312\"?>
    <methodCall>
      <methodName>weblogUpdates.extendedPing</methodName>
      <params>
        <param><value><string>愚人渡</string></value></param>
        <param><value><string>http://www.jb51.net</string></value></param>
        <param><value><string>http://www.jb51.net/read.php?tid-96.html</string></value></param>
        <param><value><string>http://www.jb51.net</string></value></param>
      </params>
    </methodCall>";

    $res = postUrl('http://ping.baidu.com/ping/RPC2', $baiduXML);

    if ( strpos($res, "<int>0</int>") )
    {
      echo "PING成功";
    }else{
      echo "PING失败";
    }

    ?>