PHP MongoDB\Driver\Manager::executeCommand() Method: Usage and Examples

Sends a MongoDB command document to a particular database.

The examples focus on the operation itself, including the important distinction: executeQuery runs a read-only query object against a collection namespace.

What It Does

Use the examples below to observe the behavior on a small dataset before extending it to application code.

Syntax and Return Value

MongoDB\Driver\Manager::executeCommand(string $db, MongoDB\Driver\Command $command, ?array $options = null): MongoDB\Driver\Cursor

The displayed signature describes the API or identifies any correction or optional dependency. When a parameter is optional, supply it only when the task requires it.

Example 1: Basic Use

Requires PECL mongodb and a reachable server. BulkWrite queues changes locally; only executeBulkWrite sends them. Cursors stream server results.

<?php
$manager = new MongoDB\Driver\Manager(getenv("MONGODB_URI") ?: "mongodb://127.0.0.1:27017");
$command = new MongoDB\Driver\Command(["ping" => 1]);
$cursor = $manager->executeCommand("admin", $command);
foreach ($cursor as $reply) { echo $reply->ok; }

This example is meant for a configured application environment; output depends on the installed extension, external service, or database contents.

Example 2: Checking Behavior

Requires PECL mongodb and a reachable server. BulkWrite queues changes locally; only executeBulkWrite sends them. Cursors stream server results. MongoDB commands have different response documents; inspect the fields returned by each specific command.

<?php
$manager = new MongoDB\Driver\Manager(getenv("MONGODB_URI") ?: "mongodb://127.0.0.1:27017");
$command = new MongoDB\Driver\Command(["hello" => 1]);
$cursor = $manager->executeCommand("admin", $command);
foreach ($cursor as $reply) { echo $reply->ok; }

This example is meant for a configured application environment; output depends on the installed extension, external service, or database contents.

Example 3: Practical Example

Requires PECL mongodb and a reachable server. BulkWrite queues changes locally; only executeBulkWrite sends them. Cursors stream server results. MongoDB commands have different response documents; inspect the fields returned by each specific command.

<?php
$manager = new MongoDB\Driver\Manager(getenv("MONGODB_URI") ?: "mongodb://127.0.0.1:27017");
$command = new MongoDB\Driver\Command(["buildInfo" => 1]);
$cursor = $manager->executeCommand("admin", $command);
foreach ($cursor as $reply) { echo json_encode($reply); }

This example is meant for a configured application environment; output depends on the installed extension, external service, or database contents.

Important Behavior and Edge Cases

Command structure is command-specific; do not treat arbitrary client JSON as safe admin commands.

This API is supplied by an optional extension that is not installed in the local test runtime, or requires a different PHP version. The example must be verified in a matching environment.

Comparison with Related Approaches

Common Beginner Mistakes

Key Takeaways

• Sends a MongoDB command document to a particular database.
• Command structure is command-specific; do not treat arbitrary client JSON as safe admin commands.
• executeQuery runs a read-only query object against a collection namespace.

Use MongoDB\Driver\Manager::executeCommand when its documented behavior matches the problem. Test the relevant edge cases in your own runtime before deploying it.