symfony
diff --git a/‎components/cache/adapters/couchbasebucket_adapter.rst
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+5-5Lines changed: 5 additions & 5 deletions b/‎components/cache/adapters/couchbasebucket_adapter.rst
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+5-5Lines changed: 5 additions & 5 deletions
diff --git a/‎components/cache/adapters/couchbasecollection_adapter.rst
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+143Lines changed: 143 additions & 0 deletions b/‎components/cache/adapters/couchbasecollection_adapter.rst
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+143Lines changed: 143 additions & 0 deletions
@@ -22,7 +22,7 @@ is also available.
 
     **Requirements:** The `Couchbase PHP extension`_ as well as a `Couchbase server`_
     must be installed, active, and running to use this adapter. Version ``2.6`` or
-    greater of the `Couchbase PHP extension`_ is required for this adapter.
+    less than 3.0 of the `Couchbase PHP extension`_ is required for this adapter.
 
 This adapter expects a `Couchbase Bucket`_ instance to be passed as the first
 parameter. A namespace and default cache lifetime can optionally be passed as
@@ -32,17 +32,17 @@ the second and third parameters::
 
     $cache = new CouchbaseBucketAdapter(
         // the client object that sets options and adds the server instance(s)
-        \CouchbaseBucket $client,
+        $client,
 
         // the name of bucket
-        string $bucket,
+        $bucket,
 
         // a string prefixed to the keys of the items stored in this cache
-        $namespace = '',
+        $namespace,
 
         // the default lifetime (in seconds) for cache items that do not define their
         // own lifetime, with a value 0 causing items to be stored indefinitely
-        $defaultLifetime = 0,
+        $defaultLifetime
     );
 
 
 
@@ -0,0 +1,143 @@
+.. index::
+    single: Cache Pool
+    single: Couchabase Cache
+
+.. _couchbase-collection-adapter:
+
+Couchbase Cache Adapter
+=======================
+
+This adapter stores the values in-memory using one (or more) `Couchbase server`_
+instances. Unlike the :ref:`APCu adapter <apcu-adapter>`, and similarly to the
+:ref:`Memcached adapter <memcached-adapter>`, it is not limited to the current server's
+shared memory; you can store contents independent of your PHP environment.
+The ability to utilize a cluster of servers to provide redundancy and/or fail-over
+is also available.
+
+.. caution::
+
+    **Requirements:** The `Couchbase PHP extension`_ as well as a `Couchbase server`_
+    must be installed, active, and running to use this adapter. Version ``3.0`` or
+    greater of the `Couchbase PHP extension`_ is required for this adapter.
+
+This adapter expects a `Couchbase Collection`_ instance to be passed as the first
+parameter. A namespace and default cache lifetime can optionally be passed as
+the second and third parameters::
+
+    use Symfony\Component\Cache\Adapter\CouchbaseCollectionAdapter;
+
+    $cache = new CouchbaseCollectionAdapter(
+        // the client object that sets options and adds the server instance(s)
+        $client,
+
+        // a string prefixed to the keys of the items stored in this cache
+        $namespace,
+
+        // the default lifetime (in seconds) for cache items that do not define their
+        // own lifetime, with a value 0 causing items to be stored indefinitely
+        $defaultLifetime
+    );
+
+
+Configure the Connection
+------------------------
+
+The :method:`Symfony\\Component\\Cache\\Adapter\\CouchbaseCollectionAdapter::createConnection`
+helper method allows creating and configuring a `Couchbase Collection`_ class instance using a
+`Data Source Name (DSN)`_ or an array of DSNs::
+
+    use Symfony\Component\Cache\Adapter\CouchbaseCollectionAdapter;
+
+    // pass a single DSN string to register a single server with the client
+    $client = CouchbaseCollectionAdapter::createConnection(
+        'couchbase://localhost'
+        // the DSN can include config options (pass them as a query string):
+        // 'couchbase://localhost:11210?operationTimeout=10'
+        // 'couchbase://localhost:11210?operationTimeout=10&configTimout=20'
+    );
+
+    // pass an array of DSN strings to register multiple servers with the client
+    $client = CouchbaseCollectionAdapter::createConnection([
+        'couchbase://10.0.0.100',
+        'couchbase://10.0.0.101',
+        'couchbase://10.0.0.102',
+        // etc...
+    ]);
+
+    // a single DSN can define multiple servers using the following syntax:
+    // host[hostname-or-IP:port] (where port is optional). Sockets must include a trailing ':'
+    $client = CouchbaseCollectionAdapter::createConnection(
+        'couchbase:?host[localhost]&host[localhost:12345]'
+    );
+
+
+Configure the Options
+---------------------
+
+The :method:`Symfony\\Component\\Cache\\Adapter\\CouchbaseCollectionAdapter::createConnection`
+helper method also accepts an array of options as its second argument. The
+expected format is an associative array of ``key => value`` pairs representing
+option names and their respective values::
+
+    use Symfony\Component\Cache\Adapter\CouchbaseCollectionAdapter;
+
+    $client = CouchbaseCollectionAdapter::createConnection(
+        // a DSN string or an array of DSN strings
+        [],
+
+        // associative array of configuration options
+        [
+            'username' => 'xxxxxx',
+            'password' => 'yyyyyy',
+            'configTimeout' => '100',
+        ]
+    );
+
+Available Options
+~~~~~~~~~~~~~~~~~
+
+``username`` (type: ``string``)
+    Username for connection ``CouchbaseCluster``.
+
+``password`` (type: ``string``)
+    Password of connection ``CouchbaseCluster``.
+
+``operationTimeout`` (type: ``int``, default: ``2500000``)
+    The operation timeout (in microseconds) is the maximum amount of time the library will
+    wait for an operation to receive a response before invoking its callback with a failure status.
+
+``configTimeout`` (type: ``int``, default: ``5000000``)
+    How long (in microseconds) the client will wait to obtain the initial configuration.
+
+``configNodeTimeout`` (type: ``int``, default: ``2000000``)
+    Per-node configuration timeout (in microseconds).
+
+``viewTimeout`` (type: ``int``, default: ``75000000``)
+    The I/O timeout (in microseconds) for HTTP requests to Couchbase Views API.
+
+``httpTimeout`` (type: ``int``, default: ``75000000``)
+    The I/O timeout (in microseconds) for HTTP queries (management API).
+
+``configDelay`` (type: ``int``, default: ``10000``)
+    Config refresh throttling
+    Modify the amount of time (in microseconds) before the configuration error threshold will forcefully be set to its maximum number forcing a configuration refresh.
+
+``htconfigIdleTimeout`` (type: ``int``, default: ``4294967295``)
+    Idling/Persistence for HTTP bootstrap (in microseconds).
+
+``durabilityInterval`` (type: ``int``, default: ``100000``)
+    The time (in microseconds) the client will wait between repeated probes to a given server.
+
+``durabilityTimeout`` (type: ``int``, default: ``5000000``)
+    The time (in microseconds) the client will spend sending repeated probes to a given key's vBucket masters and replicas before they are deemed not to have satisfied the durability requirements.
+
+.. tip::
+
+    Reference the `Couchbase Collection`_ extension's `predefined constants`_ documentation
+    for additional information about the available options.
+
+.. _`Couchbase PHP extension`: https://docs.couchbase.com/sdk-api/couchbase-php-client/namespaces/couchbase.html
+.. _`predefined constants`: https://docs.couchbase.com/sdk-api/couchbase-php-client/classes/Couchbase-Bucket.html
+.. _`Couchbase server`: https://couchbase.com/
+.. _`Couchbase Collection`: https://docs.couchbase.com/sdk-api/couchbase-php-client/classes/Couchbase-Collection.html
+.. _`Data Source Name (DSN)`: https://en.wikipedia.org/wiki/Data_source_name