PHP & MongoDB – Show Databases
First step to do any operation is to create a Manager instance.
// Connect to MongoDB using Manager Instance $manager = new MongoDBDriverManager("mongodb://localhost:27017");
Second step is to prepare and execute a command on a database to show the list of databases available.
// Create a Command Instance $databaseList = new MongoDBDriverCommand(["listDatabases" => 1]); // Execute the command on the database $cursor = $manager->executeCommand("admin", $databaseList);
Example
Try the following example to list databases available by default in MongoDB server −
Copy and paste the following example as mongodb_example.php −
<?php try { // connect to mongodb $manager = new MongoDBDriverManager("mongodb://localhost:27017"); // Create a Command Instance $databaseList = new MongoDBDriverCommand(["listDatabases" => 1]); // Execute the command on the database $cursor = $manager->executeCommand("admin", $databaseList); $databases = current($cursor->toArray()); foreach ($databases->databases as $database) { echo $database->name . "<br/>"; } } catch (MongoDBDriverExceptionException $e) { echo "Exception:", $e->getMessage(), "n"; } ?>
Output
Access the mongodb_example.php deployed on apache web server and verify the output.
admin config local