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<?php $pos = strpos('PHP 5.6.10', phpversion()); if($pos !== false){ print "<pre>"; $arr = timezone_abbreviations_list(); print_r($arr['cst']); die; } ?>
based on UQQ92
Output for 5.3.18 - 5.6.9, 5.6.11 - 7.2.0
Output for 5.6.10
<pre>Array ( [0] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Chicago ) [1] => Array ( [dst] => [offset] => -18000 [timezone_id] => America/Havana ) [2] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Atikokan ) [3] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Bahia_Banderas ) [4] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Belize ) [5] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Cambridge_Bay ) [6] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Cancun ) [7] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Chihuahua ) [8] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Coral_Harbour ) [9] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Costa_Rica ) [10] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Detroit ) [11] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/El_Salvador ) [12] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Fort_Wayne ) [13] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Guatemala ) [14] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Hermosillo ) [15] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Indianapolis ) [16] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Knox ) [17] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Marengo ) [18] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Petersburg ) [19] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Tell_City ) [20] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Vevay ) [21] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Vincennes ) [22] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indiana/Winamac ) [23] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Indianapolis ) [24] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Iqaluit ) [25] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Kentucky/Louisville ) [26] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Kentucky/Monticello ) [27] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Knox_IN ) [28] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Louisville ) [29] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Managua ) [30] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Matamoros ) [31] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Mazatlan ) [32] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Menominee ) [33] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Merida ) [34] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Mexico_City ) [35] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Monterrey ) [36] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/North_Dakota/Beulah ) [37] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/North_Dakota/Center ) [38] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/North_Dakota/New_Salem ) [39] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Ojinaga ) [40] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Pangnirtung ) [41] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Rainy_River ) [42] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Rankin_Inlet ) [43] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Regina ) [44] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Resolute ) [45] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Swift_Current ) [46] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Tegucigalpa ) [47] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Thunder_Bay ) [48] => Array ( [dst] => [offset] => -21600 [timezone_id] => America/Winnipeg ) [49] => Array ( [dst] => [offset] => -21600 [timezone_id] => Canada/Central ) [50] => Array ( [dst] => [offset] => -21600 [timezone_id] => Canada/East-Saskatchewan ) [51] => Array ( [dst] => [offset] => -21600 [timezone_id] => Canada/Saskatchewan ) [52] => Array ( [dst] => [offset] => -21600 [timezone_id] => Mexico/BajaSur ) [53] => Array ( [dst] => [offset] => -21600 [timezone_id] => Mexico/General ) [54] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Chongqing ) [55] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Chungking ) [56] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Harbin ) [57] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Macao ) [58] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Macau ) [59] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Shanghai ) [60] => Array ( [dst] => [offset] => 28800 [timezone_id] => Asia/Taipei ) [61] => Array ( [dst] => [offset] => 28800 [timezone_id] => PRC ) [62] => Array ( [dst] => [offset] => 28800 [timezone_id] => ROC ) )