(PECL mongo >=0.9.0)
MongoDB::listCollections — Gets an array of all MongoCollections for this database
$includeSystemCollections = false
] )Gets a list of all the collections in the database and returns them as an array of MongoCollection objects.
includeSystemCollections
Include system collections.
Returns an array of MongoCollection objects.
| 版本 | 说明 |
|---|---|
| 1.3.0 |
Added the includeSystemCollections parameter.
|
Example #1 MongoDB::listCollections() example
The following example demonstrates dropping each collection in a database.
<?php
$m = new MongoClient();
$db = $m->selectDB("sample");
$list = $db->listCollections();
foreach ($list as $collection) {
echo "removing $collection... ";
$collection->drop();
echo "gone\n";
}
?>
以上例程的输出类似于：
removing sample.blog.posts... gone removing sample.critical.docs... gone removing sample.taxes... gone ...
Matt Saunders (2010-01-11 08:11:25)
Currently, the PHP equivalent to "show dbs" is:
$db->command(array("listDatabases" => 1));
According to kristina1 in #mongodb, there will be a proper helper (listDatabases() I presume ) for this command in a later version.