[edit] Last updated: Fri, 18 Sep 2009

The MongoId class

Увод

A unique identifier created for database objects.

Синтаксис за класове

MongoId

MongoId {

/* Methods */

__construct ([ string $id = NULL ] )

public string __toString ( void )

}

Съдържание

MongoId::__construct — Creates a new id
MongoId::__toString — Returns a hexidecimal representation of this id

add a note User Contributed Notes MongoId

alex dot turpin at gmail dot com 11-Jul-2011 09:15


If you need to get the actual ID string, and you try the usual way, PHP will whine because it starts with a dollar sign and it thinks it's a variable. Instead, use this notation:



<?php

    $mongoid->{'$id'} //Get the $id property of a MongoId object

?>

sararschreiber at gmail dot com 12-Oct-2010 12:23


this is useful for querying for an object by id, given the id's hex:





<?php


$userid = '4cb4ab6d7addf98506010000';





$theObjId = new MongoId($userid);





$connection = new Mongo();


$db = $connection->thedb->users;





// this will return our matching entry.


$item = $db->findOne(array("_id" => $theObjId));





$connection->close();





?>

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