$keyPrefix public property A string prefixed to every cache key. This is needed when you store cache data under the same $cachePath for different applications to avoid conflict. To ensure interoperability, only alphanumeric characters should be used. public string $keyPrefix = ''

remove() public method Removes a session variable. public mixed remove ( $key )$key string The name of the session variable to be removed return mixed The removed value, null if no such session variable.

delete() public method Creates a DELETE SQL statement. For example, $sql = $queryBuilder->delete('user', 'status = 0'); The method will properly escape the table and column names. public string delete ( $table, $condition, &$params )$table string The table where the data will be deleted from. $condition array|string The condition that will be put in the WHERE part. Please refer to yii\db\Query::where() on how to specify condition. $params array The binding parameters that w

initUserAttributes() protected method Initializes authenticated user attributes. protected array initUserAttributes ( )return array Auth user attributes.

$panels public property List of debug panels. The array keys are the panel IDs, and values are the corresponding panel class names or configuration arrays. This will be merged with corePanels(). You may reconfigure a core panel via this property by using the same panel ID. You may also disable a core panel by setting it to be false in this property. public array|yii\debug\Panel[] $panels = []

acquireLock() protected method Acquires lock by given name. protected boolean acquireLock ( $name, $timeout = 0 )$name string Of the lock to be acquired. $timeout integer To wait for lock to become released. return boolean Acquiring result.

__construct() public method public void __construct ( $class, $message = null, $code = 0, Exception $previous = null )$class $message $code $previous

close() public method Closes the currently active DB connection. It does nothing if the connection is already closed. public void close ( )

$iterator public read-only property An iterator for traversing the items in the list. public ArrayIterator getIterator ( )

__construct() public method Constructor. public void __construct ( $config = [] )$config array Name-value pairs that will be used to initialize the object properties. Note that the configuration must contain both $id and $basePath. throws yii\base\InvalidConfigException if either $id or $basePath configuration is missing.