/**
* Initialize Storage
*
* @param array $input
* @return $this
*/
public static function getInstance($input = null)
{
if (is_object(self::$instance) && self::$instance instanceof Operation) {
return self::$instance;
} else {
$operation = new self();
if (null === $input && isset($_SESSION)) {
$input = $_SESSION;
if (is_object($input) && !$_SESSION instanceof \ArrayObject) {
$input = (array) $input;
}
} elseif (null === $input) {
$input = array();
}
$_SESSION = $input;
$operation->setRequestAccessTime(microtime(true));
self::$instance = $operation;
session_start();
return self::$instance;
}
}
