PHP 5.6.0 released

MongoClient::listDBs

(PECL mongo >=1.3.0)

MongoClient::listDBsLists all of the databases available.

Description

public array MongoClient::listDBs ( void )

Parameters

This function has no parameters.

Return Values

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.

Examples

Example #1 MongoClient::listDBs() example

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

<?php

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

?>

The above example will output something similar to:

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

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

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User Contributed Notes 1 note

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

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