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I'm trying to use mongodb with php but I keep getting this error

("Class 'MongoClient' not found")

whenever I try this code:

$m = new MongoClient();

The weird part is that if I run a get_loaded_extensions(), mongodb shows up and it also shows up on the phpinfo(). I also have extension=mongodb.so on the php.ini file.

I'm on debian running MongoDB shell version: 2.6.11 and php is running mongodb version 1.1.2.

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  • What error do you get?
    – bartvanraaij
    Commented Feb 25, 2016 at 11:50
  • "Class 'MongoClient' not found"
    – Ruben
    Commented Feb 25, 2016 at 11:51

1 Answer 1

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You're mixing up the Mongoand MongoDB extensions. The (deprecated) Mongo extension loads via mongo.so and provides MongoClient. You're using the newer and preferred MongoDB extension (mongodb.so) so you should be using:

$client = new MongoDB\Client("mongodb://localhost:27017");

See: http://php.net/manual/en/set.mongodb.php vs https://www.php.net/manual/en/mongo.setup.php

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  • 1
    Now I get "Class 'MongoDB\Client' not found" =/
    – Ruben
    Commented Feb 25, 2016 at 12:03
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    I found out in the documentation you put! It should be $client = new MongoDB\Driver\Manager("mongodb://127.0.0.1:27017");
    – Ruben
    Commented Feb 25, 2016 at 12:10
  • Ah, the client library isn't automatically included. You should install that too: php.net/manual/en/mongodb.tutorial.library.php
    – bartvanraaij
    Commented Feb 25, 2016 at 12:11
  • Ya, that worked too. Thansk a lot! .. Almost all the problem came from the fact that when doing a google search for "php mongodb", you actually get the deprecated extension (Mongo)
    – Ruben
    Commented Feb 25, 2016 at 12:17

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