MongoDB::listCollections

(PECL mongo >=0.9.0)

MongoDB::listCollections — Get a list of collections in this database

Description

public array MongoDB::listCollections ( void )

Parameters

This function has no parameters.

Return Values

Returns a list of MongoCollections.

Examples

Example #1 MongoDB::listCollections() example

The following example demonstrates dropping each collection in a database.


<?php

$m = new Mongo();
$db = $m->selectDB("sample");

$list = $db->listCollections();
foreach ($list as $collection) {
    echo "removing $collection... ";
    $collection->drop();
    echo "gone\n";
}

?>

The above example will output something similar to:

removing sample.blog.posts... gone
removing sample.critical.docs... gone
removing sample.taxes... gone
...

add a note User Contributed Notes MongoDB::listCollections

Matt Saunders 11-Jan-2010 08:11


Currently, the PHP equivalent to "show dbs" is:



$db->command(array("listDatabases" => 1));



According to kristina1 in #mongodb, there will be a proper helper (listDatabases() I presume ) for this command in a later version.

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