Controlador de MongoDB

A diferencia de la extensión mongo, esta extensión da soporte a PHP y HHVM y está desarrollada sobre las bibliotecas » libmongoc y » libbson. Proporcina una API mínima para la funcionalidad principal del controlador: comandos, consultas, escrituras, gestión de conexiones y serialización BSON.

Las bibliotecas de usuario de PHP que dependan de esta extensión podrían proporcionar APIs de más alto nivel, como constructores de consultas, métodos ayudantes de comandos individuales, y GridFS. Los desrrolladores de aplicaciones deberían considerar usar esta extensión junto con la » biblioteca de PHP MongoDB, la cual implementa las mismas API de más alto nivel que se encuentra en los controladores de MongoDB para otros lenguajes. Esta separación de materias permite al controlador centrarse en características esenciales para las cuales una implementación de la extensión es primordial el rendimiento.

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User Contributed Notes 3 notes

n dot vandermeij at mycademy dot com
1 year ago
*** ONLY FOR VERSIONS >= 1.2.0 ***

If you encounter the following error:

"PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/'
- /usr/lib64/php/modules/ undefined symbol: php_json_serializable_ce in Unknown on line 0"

For a detailed explanation, please visit:

TLDR: You need to load the extension after the

Special thanks to Derick Rethans for pointing this out!
mike at eastghost dot com
11 months ago
There is an adapter - so old MongoClient / MongoDB code will run on the new PHP7/Mongo mess
mike at eastghost dot com
4 months ago

In new driver, these fail:

(A) $count = $collection->find( $criteria )->count();

(B1) $cursor = $collection->find( $criteria );
(B2) $count = $cursor->count();

In new driver, result counting has become its own separate action, to be applied to the collection, not the cursor:

$count = $collection->count( $criteria );
$cursor = $collection->find( $criteria );

From jmikola 6 Jan 2016 ([url] here[/url]):

"In the new driver, a Cursor object now represents the actual results of an executed command or query, whereas cursors in the legacy driver had a dual-nature (pre- or post-executed). The legacy MongoCursor::count() method actually invoked a count command with the same criteria; however, this meant it was entirely possible for the count command's calculation to differ from the actual query results, since they were not necessarily operating on the same result data.

"The userland library implements a count() method on the collection, which also takes filter criteria, and we'd rather encourage that so users understand that the operations are separate. If we do end up making Cursor countable in the userland library, we would use iterator_count() to provide an exact count on the results; however, this will also require us to cache the results so that users can rewind the cursor and iterate again (this was most recently discussed in PHPLIB-81). While the legacy driver would re-execute the query on a rewind, that's also not an option given the nature of a Cursor in the new driver.

"I realize this may come across as an inconvenience, but I believe the explicit API is a ultimately a step forward from the legacy driver, where many users might have been oblivious to what was actually happening under the hood. Feel free to follow up if you have additional questions.
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