installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/ini/config-db-sample.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * File: config-db-sample.php
+ *
+ * @package W3TC
+ */
+
+define( 'W3TC_CONFIG_DATABASE', true );
+
+// optional - specify table to store.
+define( 'W3TC_CONFIG_DATABASE_TABLE', 'wp_options' );
+
+// cache config in cache to prevent db queries on each http request.
+// if multiple http servers used - use only shared cache storage used by all
+// machines, since distributed flush operations are not supported for config
+// cache.
+
+// memcached cache config.
+define( 'W3TC_CONFIG_CACHE_ENGINE', 'memcached' );
+define( 'W3TC_CONFIG_CACHE_MEMCACHED_SERVERS', '127.0.0.1:11211' );
+
+// optional memcached settings.
+define( 'W3TC_CONFIG_CACHE_MEMCACHED_PERSISTENT', true );
+define( 'W3TC_CONFIG_CACHE_MEMCACHED_AWS_AUTODISCOVERY', false );
+define( 'W3TC_CONFIG_CACHE_MEMCACHED_USERNAME', '' );
+define( 'W3TC_CONFIG_CACHE_MEMCACHED_PASSWORD', '' );
+
+// redis config cache.
+define( 'W3TC_CONFIG_CACHE_ENGINE', 'redis' );
+define( 'W3TC_CONFIG_CACHE_REDIS_SERVERS', '127.0.0.1:6379' );
+define( 'W3TC_CONFIG_CACHE_REDIS_VERIFY_TLS_CERTIFICATES', true );
+
+// optional redis settings.
+define( 'W3TC_CONFIG_CACHE_REDIS_PERSISTENT', true );
+define( 'W3TC_CONFIG_CACHE_REDIS_DBID', 0 );
+define( 'W3TC_CONFIG_CACHE_REDIS_PASSWORD', '' );
+define( 'W3TC_CONFIG_CACHE_REDIS_TIMEOUT', 0 );
+define( 'W3TC_CONFIG_CACHE_REDIS_RETRY_INTERVAL', 0 );
+define( 'W3TC_CONFIG_CACHE_REDIS_READ_TIMEOUT', 0 );