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MongoClient::listDBs

(PECL mongo >=1.3.0)

MongoClient::listDBsLists all of the databases available

Extensia care definește această metodă este învechită. În loc, trtebuie utilizată extensia MongoDB. Nu există un echivalent al acestei metode în noua extensie, însă există o alternativă în biblioteca PHP:

Descrierea

public MongoClient::listDBs ( ) : array

Parametri

Această funcție nu are parametri.

Valorile întoarse

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.

Exemple

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);

?>

Exemplul de mai sus va afișa ceva similar cu:

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
9 years 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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