PHP Fatal error: Call to undefined method MongoDB::find() when try to use collection

Question

I have followed structure of mongoDB:

DB name: bios
user: "fess"
password: "boo"
IP: 1.2.3.4
collection name: bios2

From MongoVUE:

enter image description here

This is my snippets of PHP code:

$db = new Mongo('mongodb://fess:[email protected]/bios');

// if i remove "bios" it asks default db name

$collection_bios2 = $db->bios2;

$cursor_bios2 = $collection_bios2->find(); // <- here I get error
//  PHP Fatal error:  Call to undefined method MongoDB::find()

...
$db->close();

Why I get this error?
I saw other examples and seems that $collection_bios2 should be collection.

Thanks

bloody numen · Accepted Answer · 2013-05-27 11:16:51Z

3

Do you select db? such as

$mongo = new Mongo();
// the following two lines are equivalent
$db = $mongo->selectDB("foo");
$db = $mongo->foo;

answered May 27, 2013 at 11:16

bloody numen

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jfa · Accepted Answer · 2015-11-15 22:13:17Z

Found the problem. In order to create connection only, 1st off I need create user/pswd for admin:

Through mongoDB CLI:

 > use admin
 > use bios
 > db.createUser("fess", "boo");

Actually I had user only for bios DB

Otherwise it will drop me error:

Error connecting to MongoDB server Failed to connect to: 1.2.3.4:27017: Authentication failed on database 'admin' with username 'fess': auth fails

PHP

        // here we create just client (for admin aka root)
        $m = new MongoClient('mongodb://fess:[email protected]');

        // and switch to "bios" 
        $db = $m->selectDB("bios");

        $list = $db->listCollections();
        foreach ($list as $collection) {
             Log::Debug(get_class() . " -> testMongoDB", "feederliteRC/U", array("Output" => "collection: $collection"));

        }

         //$db = new Mongo('mongodb://max:[email protected]/bios');

         //$collection_bios = $db->bios;
         $collection_bios2 = $db->bios2;

Output

 "collection: bios.bios2"

Htoo Maung Thait · Accepted Answer · 2017-08-16 08:05:44Z

0

For me, it is fine as below. I used "mongodb/mongodb" with composer from packagist. "composer require mongodb/mongodb".

require(__DIR__."/vendor/autoload.php");
use MongoDB\Client as MGDClient;

$collection = (new MGDClient(username:[email protected]:27017/db_name))->db_name->collection_name;

$cursor = $collection->find([],['limit'=>5]);

var_dump($cursor);

answered Aug 16, 2017 at 8:05

Htoo Maung Thait

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