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msd/vendor/desarrolla2/cache/docs/implementations/mongodb.md

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+# Mongo
+
+Use it to store the cache in a Mongo database. Requires the mongodb extension
+and the [mongodb/mongodb](https://github.com/mongodb/mongo-php-library)
+library.
+
+You must pass a `MongoDB\Collection` object to the cache constructor.
+
+``` php
+<?php
+
+use Desarrolla2\Cache\Mongo as MongoCache;
+use MongoDB\Client;
+
+$client = new Client('mongodb://localhost:27017');
+$database = $client->selectDatabase('mycache');
+$collection = $database->selectCollection('cache');
+
+$cache = new MongoCache($collection);
+```
+
+MonoDB will always automatically create the database and collection if needed. 
+
+### Options
+
+| name       | type      | default |                                       |
+| ---------  | ----      | ------- | ------------------------------------- |
+| initialize | bool      | true    | Enable auto-initialize                |
+| ttl        | int       | null    | Maximum time to live in seconds       |
+| prefix     | string    | ""      | Key prefix                            |
+
+#### Initialize option
+
+If `initialize` is enabled, the cache implementation will automatically create
+a [ttl index](https://docs.mongodb.com/manual/core/index-ttl/). In production
+it's better to disable auto-initialization and create the ttl index explicitly
+when setting up the database. This prevents a `createIndex()` call on each
+request. 
+
+### Packer
+
+By default the [`MongoDBBinaryPacker`](../packers/mongodbbinary.md) is used. It
+serializes the data and stores it in a [Binary BSON variable](http://php.net/manual/en/class.mongodb-bson-binary.php). 
+If the data is a UTF-8 string of simple array or stdClass object, it may be
+useful to use the [`NopPacker`](../packers/nop.md) instead.