php 连接mongodb 闲置30秒后关闭，重新连接连接不上，调用5次后又能连接，求指教怎样能解决
Failed to connect to: mongo.duapp.com:8908: send_package: error reading from socket: The socket is closed

我也遇到过同样问题，解决方法https://duxiulong.duapp.com/blog/a-241213072.html

$mongoClient=NULL;
$mongoDB=NULL;
try{
$mongoClient = new MongoClient("mongodb://{$host}:{$port}");
$mongoDB = $mongoClient->selectDB($dbname);
$mongoDB->authenticate($user, $pwd);
}catch(Exception $ex){
$mongoClient = new MongoClient("mongodb://{$host}:{$port}");
$mongoDB = $mongoClient->selectDB($dbname);
$mongoDB->authenticate($user, $pwd);
}
/*这里写你的业务逻辑代码*/
$mongoClient->close(); /*一定要记得close*/
我是昨天要用bae的这个东西碰到的，研究了一晚上搞出来的，给分吧。