Edit Report a Bug

    MongoCollection::createDBRef

    (PECL mongo >=0.9.0)

    MongoCollection::createDBRef — Creates a database reference

    Descrierea

    public MongoCollection::createDBRef ( mixed $document_or_id ) : array

    Parametri

    document_or_id

    If an array or object is given, its _id field will be used as the reference ID. If a MongoId or scalar is given, it will be used as the reference ID.

    Valorile întoarse

    Returns a database reference array.

    If an array without an _id field was provided as the document_or_id parameter, null will be returned.

    Exemple

    Example #1 MongoCollection::createDBRef() example

    <?php

    $songs     = $db->songs;
    $playlists = $db->playlists;

    // create a reference to a song
    $manamana = $songs->findOne(array('title' => 'Ma na ma na'));
    $refToSong = $songs->createDBRef($manamana);

    // add the reference to my playlist
    $playlists->update(array('username' => 'me'), array('$push' => array('songlist' => $refToSong)));

    ?>

    A se vedea și

    add a note add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top