init() public method Initializes the Cache component. This method will initialize the $db property to make sure it refers to a valid MongoDB connection. public void init ( )throws yii\base\InvalidConfigException if $db is invalid.

has() public method Returns whether there is a cookie with the specified name. Note that if a cookie is marked for deletion from browser, this method will return false. See also remove(). public boolean has ( $name )$name string The cookie name return boolean Whether the named cookie exists

$logCollection public property The name of the MongoDB collection that stores the session data. Please refer to yii\mongodb\Connection::getCollection() on how to specify this parameter. This collection is better to be pre-created with fields 'id' and 'expire' indexed. public string|array $logCollection = 'log'

$headerOptions public property The HTML attributes for the header cell tag. See also yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. public array $headerOptions = []

renderHeaderCellContent() protected method Renders the header cell content. The default implementation simply renders $header. This method may be overridden to customize the rendering of the header cell. protected string renderHeaderCellContent ( )return string The rendering result

getIsActive() public method Returns a value indicating whether the DB connection is established. public boolean getIsActive ( )return boolean Whether the DB connection is established

dumpAsString() public static method Dumps a variable in terms of a string. This method achieves the similar functionality as var_dump and print_r but is more robust when handling complex objects such as Yii controllers. public static string dumpAsString ( $var, $depth = 10, $highlight = false )$var mixed Variable to be dumped $depth integer Maximum depth that the dumper should go into the variable. Defaults to 10. $highlight boolean Whether the result should be syntax-highlighted re

$isAjax public read-only property Whether this is an AJAX (XMLHttpRequest) request. public boolean getIsAjax ( )

$containerOptions public property The HTML attributes for the container tag. The following special options are recognized: tag: string, defaults to "div", the name of the container tag. See also yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. public array $containerOptions = []

$containerOptions public property The HTML attributes for the container tag. See also yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. public array $containerOptions = []