MongoDB::listCollections

(PECL mongo >=0.9.0)

MongoDB::listCollectionsGets an array of all MongoCollections for this database

Description

public array MongoDB::listCollections ([ bool $includeSystemCollections = false ] )

Gets a list of all the collections in the database and returns them as an array of MongoCollection objects.

Parameters

includeSystemCollections

Include system collections.

Return Values

Returns an array of MongoCollection objects.

Changelog

Version Description
1.3.0 Added the includeSystemCollections parameter.

Examples

Example #1 MongoDB::listCollections() example

The following example demonstrates running count on each collection in a database.

<?php

$m 
= new MongoClient();
$db $m->selectDB("demo");

$list $db->listCollections();
foreach (
$list as $collection) {
    echo 
"amount of documents in $collection: ";
    echo 
$collection->count(), "\n";
}

?>

The above example will output something similar to:

...
amount of documents in demo.pubs: 4
amount of documents in demo.elephpants: 3
amount of documents in demo.cities: 22840
...

See Also

add a note add a note

User Contributed Notes 1 note

up
0
George Gombay
3 months ago
For an alternative to the shell command 'show dbs', refer to my note for the listDBs() method of Mongoclient(), which reproduces some simple PHP code that will yield the names of all database present.
To Top