timezone_offset_get
To clarify kay's note below, when given an empty or invalid timezone string, this function does issue a warning, but it still returns boolean(FALSE) just like the documentation says.
timezone_open
(PHP 5 >= 5.2.0)
timezone_open — Retorna um novo objeto DateTimeZone
Descrição
Esta função é um apelido para: DateTimeZone::__construct()
User Contributed Notes
timezone_open
timezone_open
brandon at theholbrooks dot org
30-Oct-2007 05:24
30-Oct-2007 05:24
kay
27-Oct-2007 04:14
27-Oct-2007 04:14
In case of an empty identifier the function returns a warning, not the boolean 'false'.
"Warning: timezone_open() [function.timezone-open]: Unknown or bad timezone () "