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<?php $tz = new DateTimeZone('America/Chicago'); $start = 1293861600; $end = 1357020000; $transitions = $tz->getTransitions($start, $end); var_dump($transitions);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array(5) { [0]=> array(5) { ["ts"]=> int(1293861600) ["time"]=> string(25) "2011-01-01T06:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [1]=> array(5) { ["ts"]=> int(1300003200) ["time"]=> string(25) "2011-03-13T08:00:00+00:00" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [2]=> array(5) { ["ts"]=> int(1320562800) ["time"]=> string(25) "2011-11-06T07:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [3]=> array(5) { ["ts"]=> int(1331452800) ["time"]=> string(25) "2012-03-11T08:00:00+00:00" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [4]=> array(5) { ["ts"]=> int(1352012400) ["time"]=> string(25) "2012-11-04T07:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(5) { [0]=> array(5) { ["ts"]=> int(1293861600) ["time"]=> string(25) "2011-01-01T06:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [1]=> array(5) { ["ts"]=> int(1300003200) ["time"]=> string(25) "2011-03-13T08:00:00+00:00" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [2]=> array(5) { ["ts"]=> int(1320562800) ["time"]=> string(25) "2011-11-06T07:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [3]=> array(5) { ["ts"]=> int(1331452800) ["time"]=> string(25) "2012-03-11T08:00:00+00:00" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [4]=> array(5) { ["ts"]=> int(1352012400) ["time"]=> string(25) "2012-11-04T07:00:00+00:00" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.6 - 8.1.28
array(5) { [0]=> array(5) { ["ts"]=> int(1293861600) ["time"]=> string(24) "2011-01-01T06:00:00+0000" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [1]=> array(5) { ["ts"]=> int(1300003200) ["time"]=> string(24) "2011-03-13T08:00:00+0000" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [2]=> array(5) { ["ts"]=> int(1320562800) ["time"]=> string(24) "2011-11-06T07:00:00+0000" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } [3]=> array(5) { ["ts"]=> int(1331452800) ["time"]=> string(24) "2012-03-11T08:00:00+0000" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } [4]=> array(5) { ["ts"]=> int(1352012400) ["time"]=> string(24) "2012-11-04T07:00:00+0000" ["offset"]=> int(-21600) ["isdst"]=> bool(false) ["abbr"]=> string(3) "CST" } }
Output for 8.1.0 - 8.1.5
array(1) { [0]=> array(5) { ["ts"]=> int(1293861600) ["time"]=> string(24) "2011-01-01T06:00:00+0000" ["offset"]=> int(-18000) ["isdst"]=> bool(true) ["abbr"]=> string(3) "CDT" } }

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