MongoDB\Database::renameCollection()

New in version 1.10.

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Definition

MongoDB\Database::renameCollection

Rename a collection within the current database.

function renameCollection(string $fromCollectionName, string $toCollectionName, ?string $toDatabaseName = null, array $options = []): array|object

This method has the following parameters:

Parameter	Type	Description
`$fromCollectionName`	string	The name of the collection to rename.
`$toCollectionName`	string	The new name of the collection.
`$toDatabaseName`	string	Optional. The new database name of the collection. If a new database name is not specified, the current database will be used. If the new name specifies a different database, the command copies the collection to the new database and drops the source collection.
`$options`	array	Optional. An array specifying the desired options.

The $options parameter supports the following options:

Option	Type	Description
`comment`	mixed	Optional. Enables users to specify an arbitrary comment to help trace the operation through the database profiler, currentOp output, and logs. This is not supported for server versions prior to 4.4 and will result in an exception at execution time if used. New in version 1.13.
`session`	MongoDB\Driver\Session	Optional. Client session to associate with the operation.
`typeMap`	array	Optional. The type map to apply to cursors, which determines how BSON documents are converted to PHP values. Defaults to the database’s type map. This will be used for the returned command result document.
`writeConcern`	MongoDB\Driver\WriteConcern	Optional. Write concern to use for the operation. Defaults to the database’s write concern.
`dropTarget`	boolean	Optional. If `true`, MongoDB will drop the target before renaming the collection. The default value is `false`.

An array or object with the result document of the renameCollection command. The return type will depend on the typeMap option.

MongoDB\Exception\UnsupportedException if options are used and not supported by the selected server (e.g. collation, readConcern, writeConcern).

MongoDB\Exception\InvalidArgumentException for errors related to the parsing of parameters or options.

MongoDB\Driver\Exception\RuntimeException for other errors at the driver level (e.g. connection errors).

The following example renames the restaurants collection in the test database to places:

<?php

$db = (new MongoDB\Client)->test;

$result = $db->renameCollection('restaurants', 'places');

var_dump($result);

The output would then resemble:

object(MongoDB\Model\BSONDocument)#8 (1) {
  ["storage":"ArrayObject":private]=>
  array(1) {
    ["ok"]=>
    float(1)
  }
}