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<?php $tests = array( 'first day', 'last day', 'next month', 'first day next month', 'last day next month', 'first day of next month', 'last day of next month' ); foreach ( $tests as $test ) { $result = date_parse( $test ); $rel = $result['relative']; echo $test, "\n- month: ", $rel['month'], '; day: ', $rel['day'], '; first-day-of: ', isset( $rel['first_day_of_month'] ) ? 'true' : 'false', '; last-day-of: ', isset( $rel['last_day_of_month'] ) ? 'true' : 'false', "\n"; $date = new DateTime( '2010-03-06 15:21 UTC' ); echo '- ', $date->format( DateTime::ISO8601 ); $date->modify( $test ); echo ' -> ', $date->format( DateTime::ISO8601 ), "\n\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
first day - month: 0; day: 1; first-day-of: false; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-03-07T15:21:00+0000 last day - month: 0; day: -1; first-day-of: false; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-03-05T15:21:00+0000 next month - month: 1; day: 0; first-day-of: false; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-04-06T15:21:00+0000 first day next month - month: 1; day: 1; first-day-of: false; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-04-07T15:21:00+0000 last day next month - month: 1; day: -1; first-day-of: false; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-04-05T15:21:00+0000 first day of next month - month: 1; day: 0; first-day-of: true; last-day-of: false - 2010-03-06T15:21:00+0000 -> 2010-04-01T15:21:00+0000 last day of next month - month: 1; day: 0; first-day-of: false; last-day-of: true - 2010-03-06T15:21:00+0000 -> 2010-04-30T15:21:00+0000

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