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<?php $a = new \DateTime('2016-03-13 3:00:00', new DateTimeZone('America/Los_Angeles')); echo "Original Timestamp: ".$a->getTimeStamp()."\n"; $b = clone $a; $b->sub(new \DateInterval('PT1S')); echo "Subtract 1 second Timestamp: ".$b->getTimeStamp(); print_r([$a,$b]);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Original Timestamp: 1457863200 Subtract 1 second Timestamp: 1457863199Array ( [0] => DateTime Object ( [date] => 2016-03-13 03:00:00.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) [1] => DateTime Object ( [date] => 2016-03-13 01:59:59.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) )
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 Original Timestamp: 1457863200 Subtract 1 second Timestamp: 1457863199Array ( [0] => DateTime Object ( [date] => 2016-03-13 03:00:00.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) [1] => DateTime Object ( [date] => 2016-03-13 01:59:59.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) )
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Original Timestamp: 1457863200 Subtract 1 second Timestamp: 1457866799Array ( [0] => DateTime Object ( [date] => 2016-03-13 03:00:00.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) [1] => DateTime Object ( [date] => 2016-03-13 03:59:59.000000 [timezone_type] => 3 [timezone] => America/Los_Angeles ) )

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152.24 ms | 403 KiB | 173 Q