代码实例：
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<?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>https://www.zzvips.com</string></value></param>
<param><value><string>https://www.zzvips.com/read.php?tid-96.html</string></value></param>
<param><value><string>https://www.zzvips.com</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";
}
?>
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