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vendor/yiisoft/yii2/caching/MemCacheServer.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\caching;
+
+/**
+ * MemCacheServer represents the configuration data for a single memcache or memcached server.
+ *
+ * See [PHP manual](http://php.net/manual/en/memcache.addserver.php) for detailed explanation
+ * of each configuration property.
+ *
+ * For more details and usage information on Cache, see the [guide article on caching](guide:caching-overview).
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class MemCacheServer extends \yii\base\BaseObject
+{
+    /**
+     * @var string memcache server hostname or IP address
+     */
+    public $host;
+    /**
+     * @var int memcache server port
+     */
+    public $port = 11211;
+    /**
+     * @var int probability of using this server among all servers.
+     */
+    public $weight = 1;
+    /**
+     * @var bool whether to use a persistent connection. This is used by memcache only.
+     */
+    public $persistent = true;
+    /**
+     * @var int timeout in milliseconds which will be used for connecting to the server.
+     * This is used by memcache only. For old versions of memcache that only support specifying
+     * timeout in seconds this will be rounded up to full seconds.
+     */
+    public $timeout = 1000;
+    /**
+     * @var int how often a failed server will be retried (in seconds). This is used by memcache only.
+     */
+    public $retryInterval = 15;
+    /**
+     * @var bool if the server should be flagged as online upon a failure. This is used by memcache only.
+     */
+    public $status = true;
+    /**
+     * @var \Closure this callback function will run upon encountering an error.
+     * The callback is run before fail over is attempted. The function takes two parameters,
+     * the [[host]] and the [[port]] of the failed server.
+     * This is used by memcache only.
+     */
+    public $failureCallback;
+}