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<?php $start = '10/10/2015'; $start_time = new DateTime($start, new DateTimeZone('US/Mountain')); $time_interval = new DateInterval('PT10H'); $start_time->add($time_interval); echo $start_time->getTimestamp(); var_dump($start_time);
Output for 5.4.30 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
1444492800object(DateTime)#1 (3) { ["date"]=> string(26) "2015-10-10 10:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(11) "US/Mountain" }
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 1444492800object(DateTime)#1 (3) { ["date"]=> string(26) "2015-10-10 10:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(11) "US/Mountain" }
Output for 5.4.1 - 5.4.29
1444492800object(DateTime)#1 (3) { ["date"]=> string(19) "2015-10-10 10:00:00" ["timezone_type"]=> int(3) ["timezone"]=> string(11) "US/Mountain" }

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