MongoDBRef::create

(PECL mongo >= 0.9.0)

MongoDBRef::create — Creates a new database reference

说明

public static array MongoDBRef::create ( string $collection , mixed $id [, string $database ] )

If no database is given, the current database is used.

参数

collection: Collection name (without the database name).
id: The _id field of the object to which to link.
database: Database name.

返回值

Returns the reference.

范例

Example #1 MongoDBRef::create() example

This creates a database reference to a document in the addresses collection. The MongoCollection::getName() function returns the name of the collection (not including the database name).


<?php
$addresses = $db->addresses;
$people = $db->people;

// save $address so it has an _id
$addresses->insert($address);

// create a reference
$ref = MongoDBRef::create($addresses->getName(), $address['_id']);

// set the field in $person
$person['address'] = $ref;
$people->save($person);
?>

参见

MongoDB::createDBRef() - Creates a database reference
MongoCollection::createDBRef() - Creates a database reference