只有find（）查询适合我！！！？MongoDB php

我正在开发

Jelastic

云平台，并尝试将

MongoDB

用于我的php网站。 唯一对我有效的查询是

$db.collection.find（）

我试着在连接之后执行我的代码，如下所示，但它也不起作用

<?php
$host = "mongodb-env-4080143.whelastic.net";
$username = "admin";
$password = "*****";

try{

$conn = new Mongo($host, array("username" => $username, "password" => $password));



    $db = $conn->selectDB('e-shoppingoMongo');


   if ($conn){

    echo " it is working ";
    $collection = new MongoCollection($db, 'users');

$db->users->insert({ 
    fname : "kkkk", lname: "Ash", password: "x" ,
    email: "x@x.com",phoneNo: 000 ,company: "x",
    country: "b",city:"x",street:"x"});

   }
    }catch( Exception $e){

   echo  "<center><h1>Doesn't work</h1></center>";

   exit;
}

?>

这对我很有效：

    $collection = new MongoCollection($db, 'users');

    $query = array( 'fname' => $fname, 'lname' => $lname, 'password' => $passwrod,
                    'email'=>$email,'phoneNo'=> $phoneNo,'company'=>$company,
                    'country'=>$country,'city'=>$city,'street'=>$street);
$cursor = $collection->insert($query);