MongoClient::listDBs

(PECL mongoclient >=1.0.4)

MongoClient::listDBs — Lists all of the databases available.

说明

public array MongoClient::listDBs ( void )

参数

此函数没有参数。

返回值

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.

范例

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);

?>

以上例程的输出类似于：

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

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