Посмотрите наши предложения
NULL
array(0) { }
array(5) { ["HBInit"]=> bool(true) ["autoupgrade_checked"]=> bool(true) ["state"]=> string(64) "c992ae0987a717ebd4a8ed40cc3ed1245662b03e33beba2fc8992d04a5ac28bc" ["sso_facebook"]=> string(23) "6a0e41c9460174.33864877" ["linkedin_state"]=> string(10) "HUn0Pvp4BK" }