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(PECL mongo >=1.3.0)

MongoClient::listDBsLists all of the databases available

A extensão que define esse método está obsoleta. Alternativamente, a extensão MongoDB deve ser utilizada. Não há um equivalente deste método na nova extensão, mas exite uma alternativa nas bibliotecas PHP:


public MongoClient::listDBs ( void ) : array


Esta função não possui parâmetros.

Valor Retornado

Returns an associative array containing three fields. The first field is databases, which in turn contains an array. Each element of the array is an associative array corresponding to a database, giving th database's name, size, and if it's empty. The other two fields are totalSize (in bytes) and ok, which is 1 if this method ran successfully.


Exemplo #1 MongoClient::listDBs() example

Example demonstrating how to use listDBs and the returned data structure.


= new MongoClient();
$dbs $mongo->listDBs();


O exemplo acima irá imprimir algo similar à:

    [databases] => Array
            [0] => Array
                    [name] => doctrine
                    [sizeOnDisk] => 218103808
                    [empty] =>

    [totalSize] => 218103808
    [ok] => 1

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User Contributed Notes 1 note

George Gombay
6 years ago
A "no frills" listing of all the databases present can be obtained by means of the simple following steps:

= new MongoClient("mongodb://localhost");
$dbases = $conn->listDBs();
$num = 0;
foreach (
$dbases['databases'] as $dbs) {
$dbname = $dbs['name'];
"<br> $num. $dbname";

On the assumption that you have three databases present, the foregoing will produce an output that will look similar to this:

1. local
2. members
3. test
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