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<?php // demo/temp_shzoechen.php
// A CLASS TO HOLD TIMEZONE-TO-ISO_3166 DATA
public $zones = ;
public function add($php_tz, $iso_3166)
$this->zones[$php_tz] = $iso_3166;
public function getCountry($php_tz)
return array_key_exists($php_tz, $this->zones)
// COLLECT THE DATA SET
$ctz = new CountryTimeZones;
$arr = DateTimeZone::listIdentifiers(DateTimeZone::ALL);
foreach ($arr as $tz_name)
$obj = new DateTimeZone($tz_name);
$sub = $obj->getLocation();
$iso = $sub['country_code'];
// DEMONSTRATE THE CLASS
// SAVE THE DATA SET
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