3v4l.org

run code in 300+ PHP versions simultaneously
<?php $startOfWeek = '10-07-2017'; $endOfWeek = new DateTime($startOfWeek); echo $endOfWeek->format('d-m-Y') . "\n"; $endOfWeek->modify('+5 day'); echo $endOfWeek->format('d-m-Y') . "\n"; $endOfWeekString = $endOfWeek->format('d-m-Y'); function firstDayOfWeek($date) { $day = DateTime::createFromFormat('d-m-Y', $date); $day->setISODate((int)$day->format('o'), (int)$day->format('W'), 1); return $day->format('d-m-Y'); } var_dump(firstDayOfWeek($startOfWeek)); echo $endOfWeekString;

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0150.00616.63
8.3.50.0110.00416.46
8.3.40.0090.00618.91
8.3.30.0070.00718.80
8.3.20.0040.00420.35
8.3.10.0080.00021.85
8.3.00.0040.00419.50
8.2.180.0110.00318.42
8.2.170.0100.01022.96
8.2.160.0130.00320.32
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00421.13
8.2.120.0000.00726.35
8.2.110.0080.00022.37
8.2.100.0060.00618.16
8.2.90.0080.00019.32
8.2.80.0080.00017.97
8.2.70.0040.00417.75
8.2.60.0100.00018.16
8.2.50.0040.00418.10
8.2.40.0080.00020.56
8.2.30.0030.00519.25
8.2.20.0040.00418.10
8.2.10.0000.00718.25
8.2.00.0040.00418.11
8.1.280.0070.01125.92
8.1.270.0040.00424.04
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00924.03
8.1.230.0040.00721.02
8.1.220.0050.00317.91
8.1.210.0000.00818.77
8.1.200.0030.00617.61
8.1.190.0030.00517.48
8.1.180.0040.00418.10
8.1.170.0070.00318.35
8.1.160.0000.00719.17
8.1.150.0000.00719.00
8.1.140.0070.00019.57
8.1.130.0040.00418.96
8.1.120.0000.00817.70
8.1.110.0060.00317.69
8.1.100.0000.00817.60
8.1.90.0000.00717.66
8.1.80.0070.00017.72
8.1.70.0000.00717.71
8.1.60.0000.00817.66
8.1.50.0000.00817.73
8.1.40.0040.00417.75
8.1.30.0040.00417.67
8.1.20.0060.00317.86
8.1.10.0000.00717.67
8.1.00.0030.00517.79
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0030.00318.58
8.0.270.0070.00017.41
8.0.260.0060.00017.08
8.0.250.0000.00717.23
8.0.240.0070.00017.09
8.0.230.0000.00717.17
8.0.220.0030.00317.08
8.0.210.0050.00217.02
8.0.200.0000.00617.22
8.0.190.0000.00717.20
8.0.180.0040.00417.09
8.0.170.0070.00017.13
8.0.160.0030.00517.09
8.0.150.0030.00517.16
8.0.140.0000.00717.16
8.0.130.0030.00313.53
8.0.120.0000.00717.05
8.0.110.0000.00717.16
8.0.100.0040.00417.01
8.0.90.0040.00416.98
8.0.80.0060.01017.16
8.0.70.0070.00017.19
8.0.60.0050.00216.94
8.0.50.0050.00317.18
8.0.30.0120.00817.38
8.0.20.0100.00817.46
8.0.10.0030.00517.37
8.0.00.0130.00316.71
7.4.330.0030.00315.55
7.4.320.0030.00516.60
7.4.300.0030.00316.86
7.4.290.0060.00316.62
7.4.280.0060.00316.59
7.4.270.0000.00716.72
7.4.260.0000.00816.62
7.4.250.0000.00916.62
7.4.240.0020.00516.79
7.4.230.0070.00016.70
7.4.220.0100.01016.76
7.4.210.0060.00916.67
7.4.200.0040.00416.86
7.4.160.0080.00816.73
7.4.150.0110.00717.40
7.4.140.0090.01617.86
7.4.130.0100.01016.95
7.4.120.0080.01016.75
7.4.110.0000.01716.60
7.4.100.0140.01016.66
7.4.90.0070.01016.73
7.4.80.0090.00919.39
7.4.70.0070.01116.71
7.4.60.0100.01016.74
7.4.50.0100.00616.39
7.4.40.0170.00616.70
7.4.30.0080.00816.92
7.4.00.0030.01215.30
7.3.330.0000.00613.52
7.3.320.0050.00013.44
7.3.310.0030.00316.52
7.3.300.0000.00716.47
7.3.290.0070.00816.47
7.3.280.0080.00816.48
7.3.270.0120.00617.40
7.3.260.0080.00816.55
7.3.250.0080.01016.66
7.3.240.0070.01016.76
7.3.230.0060.01216.96
7.3.210.0150.00616.76
7.3.200.0070.01016.55
7.3.190.0090.00616.55
7.3.180.0100.00616.68
7.3.170.0130.00316.54
7.3.160.0060.00916.54
7.3.120.0090.00615.42
7.3.110.0020.01315.13
7.3.100.0160.00015.17
7.3.90.0080.00415.20
7.3.80.0130.00315.11
7.3.70.0060.00915.12
7.3.60.0110.00014.75
7.3.50.0030.00914.97
7.3.40.0100.00715.20
7.3.30.0070.00714.92
7.3.20.0090.00316.77
7.3.10.0050.00916.74
7.3.00.0080.00516.81
7.2.330.0090.00916.71
7.2.320.0060.00916.63
7.2.310.0080.01116.81
7.2.300.0070.01116.77
7.2.290.0120.00716.73
7.2.250.0100.01015.36
7.2.240.0120.00915.16
7.2.230.0070.01315.44
7.2.220.0080.00515.40
7.2.210.0060.01015.24
7.2.200.0130.00315.00
7.2.190.0130.00614.94
7.2.180.0090.00315.10
7.2.170.0030.01315.07
7.2.130.0060.01016.84
7.2.120.0030.01017.17
7.2.110.0080.00316.92
7.2.100.0060.00616.88
7.2.90.0740.00716.03
7.2.80.0070.00517.00
7.2.70.0050.00917.04
7.2.60.0090.00617.19
7.2.50.0010.01117.07
7.2.40.0040.00917.03
7.2.30.0100.00717.19
7.2.20.0050.01217.06
7.2.10.0040.00917.09
7.2.00.0050.00817.13
7.1.330.0000.01315.98
7.1.320.0090.00915.93
7.1.310.0070.00416.10
7.1.300.0000.01215.77
7.1.290.0130.00316.10
7.1.280.0030.00916.13
7.1.270.0030.01415.85
7.1.260.0000.01316.25
7.1.250.0040.00816.02
7.1.210.0130.00015.85
7.1.200.0060.00616.19
7.1.190.0030.01316.07
7.1.180.0030.00916.01
7.1.170.0110.00015.94
7.1.160.0060.00615.96
7.1.150.0110.00416.14
7.1.140.0170.00016.12
7.1.130.0030.01016.01
7.1.120.0110.00016.02
7.1.110.0030.01216.21
7.1.100.0130.00316.11
7.1.90.0000.01516.17
7.1.80.0070.00716.20
7.1.70.0550.00616.10
7.1.60.0300.00333.88
7.1.50.0220.00933.92
7.1.40.0260.01134.07
7.1.30.0250.01234.03
7.1.20.0300.00634.02
7.1.10.0050.00916.01
7.1.00.0120.00316.01
7.0.310.0070.00315.41
7.0.300.0060.01015.52
7.0.290.0040.01215.32
7.0.280.0060.01115.50
7.0.270.0040.00715.36
7.0.260.0090.00615.33
7.0.250.0030.01315.78
7.0.240.0070.00915.55
7.0.230.0050.00815.51
7.0.220.0070.01115.21
7.0.210.0050.01115.55
7.0.200.0030.00815.55
7.0.190.1600.01015.33
7.0.180.0050.00915.73
7.0.170.0050.00815.57
7.0.160.0090.00515.76
7.0.150.0110.00413.76
7.0.140.0070.00715.60
7.0.130.0050.01115.54
7.0.120.0070.00415.70
7.0.110.0110.00015.73
7.0.100.0060.00615.58
7.0.90.0050.00515.63
7.0.80.0030.01015.58
7.0.70.0100.00015.51
7.0.60.0400.00515.59
7.0.50.0100.00015.63
7.0.40.0070.00415.63
7.0.30.0000.01015.68
7.0.20.0000.01115.41
7.0.10.0050.01113.66
7.0.00.0080.00515.57

preferences:
53.04 ms | 401 KiB | 5 Q