generate documentation from config.sample.php

admin_manual/configuration_server/config_sample_php_parameters.rst

@@ -150,6 +150,15 @@ Prefix for the Nextcloud tables in the database.
 
 Default to ``oc_``
 
+::
+
+	'dbpersistent' => '',
+
+Enable persistent connexions to the database.
+
+This setting uses the "persistent" option from doctrine dbal, wich in turns
+ uses the PDO::ATTR_PERSISTENT option from de pdo driver.
+
 ::
 
 	'installed' => false,