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Text lesson

timezone_identifiers_list()

Example

Display all timezones in the Africa region.

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

Definition and Usage

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

Syntax

timezone_identifiers_list(what, country)

Parameter Values

Parameter

Description

what

Optional. Specifies a constant from the DateTimeZone class:

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 country code.

Technical Details

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