熊掌号api提交问题

熊掌号api提交，php推送文件怎么制作
$urls = array(
"连接",
"连接1",
);
$api = "**/urls?appid=***&token=gmDCpefbmrinDGfa&type=realtime";
$ch = curl_init();
$options = array(
CURLOPT_URL => $api,
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POSTFIELDS => implode(""
", $urls),
CURLOPT_HTTPHEADER => array("Content-Type: text/plain"),
);
curl_setopt_array($ch, $options);
$result = curl_exec($ch);
echo $result;