Online PHP editor | perf for MqmDQ

<?php $date = DateTime::createFromFormat( "Y-m-d", "2025-01-31", new DateTimeZone('UTC') ); echo $date->format('Y-m-d'); echo PHP_EOL; $date->add( new DateInterval('P1M') ); echo $date->format('Y-m-d'); echo PHP_EOL; echo PHP_EOL; $date2 = DateTimeImmutable::createFromFormat( "Y-m-d", "2025-01-31", new DateTimeZone('UTC') ); echo "Current date is : " . $date2->format( 'Y-m-d'); $currentMonth = $date2->format('m'); $nextMonth = $date2->add( new DateInterval('P1M') )->format('m'); if( $currentMonth == $nextMonth-1 && $date2->format('j') != $date2->format('t') ) { $nextDate = $date2->add( new DateInterval('P1M') ); } else { $nextDate = $date2->modify( "last day of next month" ); } echo PHP_EOL; /* $currentMonth = date("m",strtotime($date)); $nextMonth = date("m",strtotime($date."+1 month")); if($currentMonth==$nextMonth-1 && (date("j",strtotime($date)) != date("t",strtotime($date)))){ $nextDate = date('Y-m-d',strtotime($date." +1 month")); }else{ $nextDate = date('Y-m-d', strtotime("last day of next month",strtotime($date))); }*/ echo "Next date would be : {$nextDate->format( 'Y-m-d')}"; echo PHP_EOL; echo PHP_EOL; function addOneMonth( DateTimeImmutable $date ): DateTimeImmutable { $currentMonth = $date->format('m'); $nextMonth = $date->add( new DateInterval('P1M') ); if( $currentMonth == $nextMonth->modify( '-1 month')->format( 'm') && $date->format('j') != $date->format('t') ) { $nextDate = $date->add( new DateInterval('P1M') ); } else { $nextDate = $date->modify( "last day of next month" ); } return $nextDate; } function addOneMonth2( DateTimeImmutable $date ): DateTimeImmutable { $nextMonth = $date->add( new DateInterval('P1M') ); if ($date->format('d') > $nextMonth->format('d')) { return $date->modify('last day of this month'); } else { return $nextMonth; } } $startDate = DateTimeImmutable::createFromFormat( "Y-m-d", "2024-01-01", new DateTimeZone('UTC') ); $dates = []; for( $i = 0; $i < 368; $i++) { $nextDate = $startDate->add( new DateInterval("P{$i}D") ); echo $nextDate->format('Y-m-d'); echo " - "; $nextMonthStart = addOneMonth2( $nextDate ); $endOfPrevMonth = $nextMonthStart->modify( '-1 day' ); echo $endOfPrevMonth->format('Y-m-d'); $daysDiff = $nextDate->diff($endOfPrevMonth)->days + 1; if( $daysDiff > 31 || $daysDiff < 29 ) { echo "PROBLEM!!!!"; } echo " ({$daysDiff}) "; echo " "; echo $nextMonthStart->format('Y-m-d'); echo " "; $nextMonthStartMonthStr = ( (int) $nextDate->format('n') + 1); $nextMonthStartString = $nextDate->format("Y") . "-" . $nextMonthStartMonthStr . "-" . $nextDate->format("d"); echo " comparing {$nextMonthStart->format('Y-n-d')} to {$nextMonthStartString} "; if( $nextMonthStart->format( 'Y-n-d') !== $nextMonthStartString ) { echo "PROBLEM!!!!"; } echo PHP_EOL; $dates[] = $nextDate; } //print_r($dates);

Version	System time (s)	User time (s)	Memory (MiB)
8.4.10	0.019	0.014	18.06
8.4.9	0.022	0.008	18.10
8.4.8	0.014	0.013	19.63
8.4.7	0.009	0.007	17.83
8.4.6	0.015	0.017	19.48
8.4.5	0.044	0.015	18.02
8.4.4	0.050	0.014	17.91
8.4.3	0.038	0.013	17.68
8.4.2	0.037	0.012	17.59
8.4.1	0.039	0.015	17.57
8.3.23	0.016	0.012	17.07
8.3.22	0.013	0.008	16.68
8.3.21	0.013	0.012	16.75
8.3.20	0.013	0.016	16.91
8.3.19	0.046	0.010	16.68
8.3.18	0.040	0.014	16.76
8.3.17	0.037	0.011	16.49
8.3.16	0.034	0.020	16.50
8.3.15	0.045	0.014	17.02
8.3.14	0.035	0.016	16.87
8.3.13	0.042	0.011	16.80
8.3.12	0.039	0.014	16.67
8.3.11	0.025	0.006	16.76
8.3.10	0.050	0.012	16.60
8.3.9	0.040	0.010	16.99
8.3.8	0.030	0.009	16.98
8.3.7	0.049	0.011	16.98
8.3.6	0.039	0.011	16.71
8.3.5	0.018	0.008	17.03
8.3.4	0.017	0.005	17.95
8.3.3	0.019	0.007	18.01
8.3.2	0.031	0.010	17.98
8.3.1	0.032	0.019	17.75
8.3.0	0.019	0.015	17.77
8.2.28	0.036	0.010	16.75
8.2.27	0.032	0.013	16.94
8.2.26	0.038	0.017	16.75
8.2.25	0.020	0.008	16.61
8.2.24	0.023	0.011	16.96
8.2.23	0.014	0.009	17.03
8.2.22	0.014	0.011	16.44
8.2.21	0.041	0.012	16.89
8.2.20	0.037	0.014	16.50
8.2.19	0.046	0.007	16.73
8.2.18	0.039	0.013	16.81
8.2.17	0.035	0.010	18.11
8.2.16	0.034	0.009	17.96
8.2.15	0.042	0.013	18.09
8.2.14	0.024	0.005	18.00
8.2.13	0.013	0.009	18.00
8.2.12	0.018	0.007	17.89
8.2.11	0.018	0.006	17.90
8.2.10	0.020	0.009	17.76
8.2.9	0.016	0.010	18.11
8.2.8	0.019	0.010	17.81
8.2.7	0.027	0.009	17.92
8.2.6	0.026	0.011	18.07
8.2.5	0.016	0.010	17.83
8.2.4	0.018	0.008	18.11
8.2.3	0.007	0.006	17.97
8.2.2	0.015	0.014	18.08
8.2.1	0.006	0.008	18.01
8.2.0	0.005	0.008	17.95

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