Php/docs/mongocollection.getdbref
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MongoCollection::getDBRef
(PECL mongo >=0.9.0)
MongoCollection::getDBRef — Fetches the document pointed to by a database reference
说明
public MongoCollection::getDBRef
( array $ref
) : array
参数
ref
- A database reference.
返回值
Returns the database document pointed to by the reference.
范例
Example #1 MongoCollection::getDBRef() example
<?php$playlists = $db->playlists;$myList = $playlists->findOne(array('username' => 'me'));// fetch each song in the playlistforeach ($myList['songlist'] as $songRef) { $song = $playlists->getDBRef($songRef); echo $song['title'] . "\n";}?>
以上例程的输出类似于:
Dazed and Confused Ma na ma na Bohemian Rhapsody
In the above example each $songRef looks something like the following:
Array ( [$ref] => songs [$id] => 49902cde5162504500b45c2c )