Php/docs/mongo.tutorial.selectdb

From Get docs

Getting a Database

To select a database, use:

<?php$connection = new MongoClient();$db = $connection->dbname;?>

The database does not need to be created in advance, you can create new databases by selecting them.

Be careful of typos! You can inadvertently create a new database, which can cause confusing errors (here name is misspelled as anme in the second selection:

<?php$connection = new MongoClient();$db = $connection->mybiglongdbname;// do some stuff$db = $connection->mybiglongdbanme;// now connected to a different database!?>

See Also

The API documentation on the MongoDB class contains more information about database objects.