利用百度ping工具，通过程序自动提交文章

function doPingXmlForBaidu($articleurl){
$xml = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
$xml .= "<methodCall>\n";
$xml .= "<methodName>weblogUpdates.extendedPing</methodName>\n";
$xml .= "<params>\n";
$xml .= "<param>\n";
$xml .= "<value><string>网站名称</string></value>\n";
$xml .= "</param>\n";
$xml .= "<param>\n";
$xml .= "<value><string>网站url</string></value>\n";
$xml .= "</param>\n";
$xml .= "<param>\n";
$xml .= "<value><string>".文章articleurl."</string></value>\n";
$xml .= "</param>\n";
$xml .= "<param>\n";
$xml .= "<value><string>rss地址</string></value>\n";
$xml .= "</param>\n";
$xml .= "</params>\n";
$xml .= "</methodCall>";

$url = "http://ping.baidu.com/ping/RPC2";  //百度地址
$ch = curl_init();
$headers = array(
"POST ".$url." HTTP/1.0",
"Content-type: text/xml;charset=\"utf-8\"",
"Accept: text/xml",
"Content-length: ".strlen($xml)
);
curl_setopt($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, $xml);
$res = curl_exec ($ch);
curl_close ($ch);
if (strpos($res, "<int>0</int>")){
return ture;
} else{
return false;
}
}