3v4l.org

run code in 300+ PHP versions simultaneously
<?php $givenday = mktime(0,0,0,01,01,2013); $Monday = strtotime("Monday this week",$givenday); echo date("j M Y H:i:s", $Monday); function StartOfWeek($year, $week) { $Jan1 = mktime(1,1,1,1,1,$year); $MondayOffset = (11-date('w',$Jan1))%7-3; $desiredMonday = strtotime(($week-1) . ' weeks '.$MondayOffset.' days', $Jan1); return $desiredMonday; } echo '<br />'; echo date('Y-m-d',StartOfWeek(2013, 1));

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)
8.3.70.0180.00418.53
8.3.60.0070.00718.31
8.3.50.0080.01021.97
8.3.40.0120.00319.10
8.3.30.0070.01419.10
8.3.20.0040.00420.34
8.3.10.0040.00422.10
8.3.00.0050.00322.54
8.2.190.0090.00616.75
8.2.180.0070.00716.75
8.2.170.0070.00722.96
8.2.160.0220.00021.06
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0140.00326.16
8.2.120.0040.00419.51
8.2.110.0050.00522.39
8.2.100.0030.00919.89
8.2.90.0090.00019.30
8.2.80.0040.00418.16
8.2.70.0060.00317.88
8.2.60.0030.00517.93
8.2.50.0000.00818.07
8.2.40.0040.00418.28
8.2.30.0040.00418.23
8.2.20.0070.00017.87
8.2.10.0000.00818.05
8.2.00.0000.00718.00
8.1.280.0090.00925.92
8.1.270.0040.00422.11
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.01023.84
8.1.230.0110.00018.97
8.1.220.0030.00617.79
8.1.210.0080.00018.77
8.1.200.0060.00317.48
8.1.190.0040.00417.66
8.1.180.0030.00518.66
8.1.170.0050.00318.75
8.1.160.0040.00422.12
8.1.150.0050.00218.84
8.1.140.0020.00517.70
8.1.130.0030.00317.93
8.1.120.0030.00317.77
8.1.110.0040.00417.58
8.1.100.0000.00817.67
8.1.90.0000.00717.77
8.1.80.0070.00017.55
8.1.70.0030.00317.59
8.1.60.0030.00617.64
8.1.50.0040.00417.71
8.1.40.0040.00417.71
8.1.30.0000.00917.71
8.1.20.0090.00017.85
8.1.10.0000.00817.73
8.1.00.0000.00817.67
8.0.300.0070.00018.77
8.0.290.0040.00417.17
8.0.280.0040.00418.57
8.0.270.0030.00517.38
8.0.260.0030.00317.13
8.0.250.0050.00217.25
8.0.240.0080.00017.30
8.0.230.0070.00017.29
8.0.220.0070.00017.20
8.0.210.0000.00817.12
8.0.200.0040.00417.23
8.0.190.0030.00417.23
8.0.180.0030.00317.26
8.0.170.0040.00417.25
8.0.160.0030.00617.25
8.0.150.0020.00517.06
8.0.140.0000.00717.16
8.0.130.0030.00313.50
8.0.120.0040.00417.20
8.0.110.0050.00217.10
8.0.100.0070.00017.06
8.0.90.0040.00417.08
8.0.80.0090.01217.23
8.0.70.0040.00417.24
8.0.60.0050.00317.14
8.0.50.0070.00017.32
8.0.30.0090.01217.44
8.0.20.0070.01117.45
8.0.10.0040.00417.38
8.0.00.0090.00916.94
7.4.330.0050.00015.18
7.4.320.0000.00616.75
7.4.300.0040.00416.60
7.4.290.0070.00016.71
7.4.280.0030.00316.66
7.4.270.0060.00316.61
7.4.260.0030.00316.68
7.4.250.0040.00416.56
7.4.240.0020.00616.72
7.4.230.0030.00316.90
7.4.220.0000.01616.87
7.4.210.0080.00916.78
7.4.200.0000.00716.80
7.4.190.0000.00716.88
7.4.160.0170.00616.52
7.4.150.0000.01717.40
7.4.140.0090.00917.86
7.4.130.0130.00616.72
7.4.120.0060.01416.85
7.4.110.0130.00316.68
7.4.100.0100.01316.57
7.4.90.0150.00416.66
7.4.80.0110.00719.39
7.4.70.0030.01316.85
7.4.60.0070.01016.61
7.4.50.0060.00316.66
7.4.40.0040.00822.77
7.4.30.0080.00816.77
7.4.00.0100.00014.83
7.3.330.0020.00213.26
7.3.320.0040.00413.29
7.3.310.0030.00316.54
7.3.300.0030.00316.35
7.3.290.0130.00716.43
7.3.280.0090.00716.49
7.3.270.0040.01617.40
7.3.260.0070.01016.68
7.3.250.0090.00916.79
7.3.240.0070.01016.68
7.3.230.0080.00816.70
7.3.210.0100.00716.62
7.3.200.0100.01119.39
7.3.190.0130.01016.81
7.3.180.0060.00916.50
7.3.170.0130.01016.73
7.3.160.0080.00816.80
7.3.120.0030.00915.06
7.2.330.0060.01116.69
7.2.320.0110.01116.76
7.2.310.0160.00616.96
7.2.300.0090.00916.84
7.2.290.0160.00016.74
7.2.00.0080.00619.61
7.1.100.0060.00618.41
7.1.70.0000.00817.57
7.1.60.0070.01719.82
7.1.50.0070.01417.30
7.1.00.0030.07322.32
7.0.200.0000.00817.08
7.0.140.0030.07022.18
7.0.80.0470.03019.85
7.0.70.0070.08019.82
7.0.60.0030.04719.96
7.0.50.0370.08720.30
7.0.40.0070.04720.18
7.0.30.0070.04720.13
7.0.20.0100.03720.14
7.0.10.0030.05719.99
7.0.00.0070.04720.10
5.6.280.0000.07720.77
5.6.230.0030.07720.51
5.6.220.0000.05720.52
5.6.210.0200.07020.67
5.6.200.0030.05021.08
5.6.190.0130.08321.07
5.6.180.0130.07021.11
5.6.170.0070.08020.95
5.6.160.0100.07021.04
5.6.150.0070.04721.02
5.6.140.0070.04021.17
5.6.130.0070.08721.00
5.6.120.0130.06721.05
5.6.110.0200.08020.95
5.6.100.0130.07721.00
5.6.90.0030.07321.07
5.6.80.0100.07720.32
5.6.70.0100.07720.46
5.6.60.0130.03020.45
5.6.50.0100.06720.40
5.6.40.0030.04320.39
5.6.30.0130.06320.40
5.6.20.0070.07320.30
5.6.10.0200.07020.31
5.6.00.0030.08020.32
5.5.370.0070.03320.37
5.5.360.0130.04320.42
5.5.350.0070.04720.46
5.5.340.0030.08320.92
5.5.330.0030.05720.94
5.5.320.0000.04720.93
5.5.310.0030.04020.79
5.5.300.0070.04020.90
5.5.290.0100.07720.87
5.5.280.0200.07320.80
5.5.270.0130.07020.86
5.5.260.0000.06720.73
5.5.250.0030.04020.65
5.5.240.0130.06320.26
5.5.230.0070.05720.31
5.5.220.0070.08320.26
5.5.210.0070.06320.18
5.5.200.0130.04720.18
5.5.190.0030.08320.19
5.5.180.0100.09020.21
5.5.160.0100.07320.21
5.5.150.0170.03320.13
5.5.140.0070.08320.24
5.5.130.0070.07320.22
5.5.120.0100.07720.18
5.5.110.0130.07320.27
5.5.100.0070.06720.18
5.5.90.0000.05320.10
5.5.80.0070.06020.13
5.5.70.0030.04019.94
5.5.60.0170.03020.10
5.5.50.0100.05020.15
5.5.40.0030.04720.09
5.5.30.0000.04320.13
5.5.20.0000.05320.06
5.5.10.0100.03320.05
5.5.00.0070.03720.10
5.4.450.0100.06319.26
5.4.440.0070.08019.46
5.4.430.0030.05019.57
5.4.420.0070.04319.45
5.4.410.0000.08019.29
5.4.400.0030.07719.05
5.4.390.0130.04019.05
5.4.380.0070.03719.05
5.4.370.0130.07318.85
5.4.360.0100.03719.23
5.4.350.0100.03719.13
5.4.340.0070.04319.16
5.4.320.0130.07019.18
5.4.310.0070.07319.21
5.4.300.0170.05719.20
5.4.290.0070.04019.05
5.4.280.0100.03719.14
5.4.270.0070.04319.12
5.4.260.0070.07719.13
5.4.250.0030.07319.09
5.4.240.0070.06019.04
5.4.230.0070.05319.22
5.4.220.0070.05319.15
5.4.210.0030.05019.15
5.4.200.0070.03719.03
5.4.190.0100.03319.22
5.4.180.0030.04019.05
5.4.170.0100.03319.11
5.4.160.0070.04019.02
5.4.150.0030.03719.03
5.4.140.0070.05316.50
5.4.130.0000.03316.46
5.4.120.0030.04016.49
5.4.110.0170.05716.37
5.4.100.0030.03316.29
5.4.90.0000.04016.29
5.4.80.0030.03716.38
5.4.70.0070.03016.43
5.4.60.0070.04016.37
5.4.50.0030.04016.44
5.4.40.0000.04016.51
5.4.30.0070.03316.48
5.4.20.0070.03316.36
5.4.10.0000.03716.49
5.4.00.0070.03315.89
5.3.290.0070.04314.75
5.3.280.0070.05014.61
5.3.270.0000.04314.54
5.3.260.0070.03314.63
5.3.250.0070.03714.63
5.3.240.0000.04014.75
5.3.230.0000.04314.50
5.3.220.0030.07714.55
5.3.210.0070.05014.60
5.3.200.0070.04014.63
5.3.190.0030.04714.54
5.3.180.0100.05714.49
5.3.170.0030.07014.57
5.3.160.0030.04314.57
5.3.150.0070.03314.57
5.3.140.0000.05014.52
5.3.130.0000.04014.64
5.3.120.0000.04314.61
5.3.110.0000.04314.60
5.3.100.0030.03014.10
5.3.90.0030.03714.12
5.3.80.0100.03013.95
5.3.70.0070.03713.95
5.3.60.0000.04014.00
5.3.50.0070.03314.00
5.3.40.0000.04013.83
5.3.30.0030.05014.04
5.3.20.0070.03013.80
5.3.10.0070.02713.65
5.3.00.0030.03713.78
5.2.170.0070.02311.04
5.2.160.0000.02711.28
5.2.150.0030.02711.07
5.2.140.0070.02711.05
5.2.130.0030.02711.21
5.2.120.0000.03010.98
5.2.110.0030.03011.13
5.2.100.0030.02711.16
5.2.90.0000.03011.13
5.2.80.0070.02311.09
5.2.70.0000.02711.21
5.2.60.0000.03010.94
5.2.50.0030.02710.92
5.2.40.0070.02710.88
5.2.30.0000.03011.11
5.2.20.0030.04010.98
5.2.10.0000.03010.87
5.2.00.0000.03010.81
5.1.60.0030.0239.84
5.1.50.0030.02310.11
5.1.40.0000.03010.05
5.1.30.0030.02310.40
5.1.20.0000.02710.45
5.1.10.0100.02010.14
5.1.00.0000.0239.96
5.0.50.0000.0208.54
5.0.40.0000.0178.40
5.0.30.0000.0338.07
5.0.20.0000.0208.28
5.0.10.0100.0108.16
5.0.00.0000.0308.27
4.4.90.0030.0137.37
4.4.80.0030.0277.37
4.4.70.0000.0177.37
4.4.60.0000.0177.37
4.4.50.0000.0177.37
4.4.40.0000.0237.37
4.4.30.0000.0177.37
4.4.20.0000.0177.37
4.4.10.0000.0177.37
4.4.00.0070.0177.37
4.3.110.0000.0177.37
4.3.100.0000.0137.37
4.3.90.0030.0137.37
4.3.80.0000.0307.37
4.3.70.0000.0177.37
4.3.60.0000.0237.37
4.3.50.0000.0407.37
4.3.40.0000.0377.37
4.3.30.0000.0377.37
4.3.20.0000.0307.37
4.3.10.0030.0177.37
4.3.00.0000.0337.37

preferences:
53.64 ms | 401 KiB | 5 Q