php使用百度ping服务代码实例

代码实例：
<?phpfunction 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";}?>