PHP Mongodb 中的动态数据库选择

Question

无法database动态选择和集合。阅读所有解决方案，但对我不起作用。selectDB功能不工作。它仅适用于静态数据。我想从配置文件中选择数据库并动态选择集合。$username='abcd';$password='efgh';$m = new MongoDB\Client("mongodb://abcd@127.0.0.1:28015/ijkl", array("username" => $username, "password" => $password));$db = $m->ijkl;但我想拥有它$username='abcd';$password='efgh';$m = new MongoDB\Client("mongodb://abcd@127.0.0.1:28015/ijkl", array("username" => $username, "password" => $password));$l1="ijkl";$db = $m->$l1;期望使用动态数据库选择。

Answer 1

终于开始工作了

$m = new MongoDB\Client("mongodb://".$mongo_username."@".$mongo_ip.":".$mongo_port."/".$mongo_db, array("username" => $mongo_username, "password" => $mongo_password));

 if(!empty($db = $m->$mongo_db))

 {

     $collection = "test";

   if(!empty($collection = $db->$collection))

   {

    $cursor =$collection->find(array("status"=>0), ['limit' => 10,'skip'=>10]);

     foreach ($cursor as $document) {

        echo "<b>ID is:</b>";

        echo $id=$document["_id"];

        echo "<br>";

        echo "<b>Link is:</b>";

        echo $link=$document["Link"];

        echo "<br>";

        echo "<b>Status is:</b>";

        echo $status=$document["status"];

        echo "<br>";

        echo "<b>Label is:</b>";

        echo $label=$document["Label"];

        echo "<br>";

    }

   }

   else

   {

       echo "Not able to select the collection!";

   }

 }

 else

 {

     echo "Not able to select the database!";

 }

Answer 2

使用来自 packagist 的 mongodb 客户端存储库。您可以通过composer安装它

$ composer require mongodb/mongodb

在您的根目录中，创建文件，例如 app.php

<?php

require 'vendor/autoload.php';

$databases = [

 'db1'=> [

    'db' => 'testdb1',

    'username' => 'user',

    'password' => 'pass',

    ...

 ], 

  'db2'=> [...],

  ...

];

$seletected = 'db1';

$database = $databases[$selected];

$client = new MongoDB\Client(

    "mongodb+srv://{$database['username']}:{$database['password']}@<cluster-address>/test?retryWrites=true&w=majority"

);

$db = $client->{$database['db']};