PHP timezone_identifiers_list() Function

Print all timezones in Africa:

<?php
print_r(timezone_identifiers_list(1));
?>

Definition and Usage

The timezone_identifiers_list() returns an indexed array containing all timezone identifiers.

timezone_identifiers_list( what, country)

Parameter	Description
what	Optional. Specifies a DateTimeZone class constant 1 = AFRICA 2 = AMERICA 4 = ANTARCTICA 8 = ARCTIC 16 = ASIA 32 = ATLANTIC 64 = AUSTRALIA 128 = EUROPE 256 = INDIAN 512 = PACIFIC 1024 = UTC 2047 = ALL 4095 = ALL_WITH_BC 4096 = PER_COUNTRY
country	Optional. Specifies a two-letter ISO 3166-1 compatible country code

Return Value:	Returns an indexed array on success. FALSE on failure
PHP Version:	5.2+
PHP Changelog:	PHP 5.3: The optional what and country parameters were added