(PHP 5 >= 5.3.0)
DateTimeZone::listIdentifiers — Returns numerically index array with all timezone identifiers
Procedural style only: A DateTime object returned by date_create()
One of DateTimeZone class constants, defaults to DateTimeZone::ALL.
A two-letter ISO 3166-1 compatible country code.
Returns array on success or FALSE on failure.
Example #1 A timezone_identifiers_list() example
<?php
$timezone_identifiers = DateTimeZone::listIdentifiers();
for ($i=0; $i < 5; $i++) {
echo "$timezone_identifiers[$i]\n";
}
?>
The above example will output something similar to:
Africa/Abidjan Africa/Accra Africa/Addis_Ababa Africa/Algiers Africa/Asmera