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 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)
8.3.60.0070.01118.55
8.3.50.0120.00322.05
8.3.40.0090.00618.96
8.3.30.0110.00419.07
8.3.20.0040.00420.20
8.3.10.0040.00421.96
8.3.00.0070.00022.52
8.2.180.0150.00718.52
8.2.170.0090.00622.96
8.2.160.0090.00620.95
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00319.61
8.2.110.0110.00022.25
8.2.100.0040.00718.03
8.2.90.0040.00420.58
8.2.80.0080.00017.97
8.2.70.0060.00317.73
8.2.60.0080.00018.16
8.2.50.0040.00418.07
8.2.40.0080.00018.25
8.2.30.0040.00418.11
8.2.20.0040.00417.95
8.2.10.0050.00319.66
8.2.00.0040.00418.04
8.1.280.0140.00325.92
8.1.270.0060.00323.91
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0070.00322.19
8.1.230.0040.00722.71
8.1.220.0000.00817.77
8.1.210.0040.00418.96
8.1.200.0100.00017.48
8.1.190.0050.00317.55
8.1.180.0040.00418.10
8.1.170.0060.00918.56
8.1.160.0000.00721.91
8.1.150.0000.00718.78
8.1.140.0030.00617.75
8.1.130.0030.00318.05
8.1.120.0040.00417.75
8.1.110.0050.00317.64
8.1.100.0060.00317.58
8.1.90.0040.00417.57
8.1.80.0030.00317.56
8.1.70.0000.00717.62
8.1.60.0030.00517.62
8.1.50.0080.00017.70
8.1.40.0040.00417.60
8.1.30.0000.00817.69
8.1.20.0000.00817.75
8.1.10.0040.00417.72
8.1.00.0030.00517.73
8.0.300.0040.00420.15
8.0.290.0040.00417.18
8.0.280.0030.00318.58
8.0.270.0030.00317.37
8.0.260.0030.00317.25
8.0.250.0070.00017.18
8.0.240.0000.00717.13
8.0.230.0040.00417.25
8.0.220.0070.00017.23
8.0.210.0000.00717.23
8.0.200.0030.00317.24
8.0.190.0000.00717.34
8.0.180.0060.00317.08
8.0.170.0040.00417.15
8.0.160.0050.00317.07
8.0.150.0040.00417.17
8.0.140.0000.00717.19
8.0.130.0040.00413.50
8.0.120.0000.00817.05
8.0.110.0040.00417.03
8.0.100.0040.00417.23
8.0.90.0000.00817.05
8.0.80.0060.00917.15
8.0.70.0070.00017.08
8.0.60.0080.00017.08
8.0.50.0070.00017.10
8.0.30.0080.01117.17
8.0.20.0100.00917.40
8.0.10.0040.00417.22
8.0.00.0070.01316.96
7.4.330.0050.00015.08
7.4.320.0070.00016.83
7.4.300.0070.00016.69
7.4.290.0030.00316.71
7.4.280.0000.00716.77
7.4.270.0030.00316.68
7.4.260.0000.00816.54
7.4.250.0040.00416.71
7.4.240.0000.00816.67
7.4.230.0000.00716.50
7.4.220.0000.01716.72
7.4.210.0090.00816.75
7.4.200.0070.00016.61
7.4.190.0000.00716.86
7.4.160.0070.00716.87
7.4.150.0140.00417.40
7.4.140.0130.00517.86
7.4.130.0100.00916.84
7.4.120.0140.00416.80
7.4.110.0100.00716.64
7.4.100.0160.00016.96
7.4.90.0040.01516.68
7.4.80.0090.00919.39
7.4.70.0040.01216.96
7.4.60.0100.00716.77
7.4.50.0040.00416.70
7.4.40.0070.00722.77
7.4.30.0090.00916.99
7.4.00.0070.00715.02
7.3.330.0030.00313.44
7.3.320.0030.00313.48
7.3.310.0040.00416.39
7.3.300.0000.00716.34
7.3.290.0070.00716.41
7.3.280.0070.01216.50
7.3.270.0090.00917.40
7.3.260.0070.01116.43
7.3.250.0080.01016.64
7.3.240.0070.01016.80
7.3.230.0130.00616.59
7.3.210.0090.00816.74
7.3.200.0140.00919.39
7.3.190.0070.01016.63
7.3.180.0100.00616.77
7.3.170.0160.00016.64
7.3.160.0140.00616.62
7.3.120.0060.00814.94
7.2.330.0090.00916.80
7.2.320.0150.00916.98
7.2.310.0070.01016.84
7.2.300.0130.00316.84
7.2.290.0000.01516.77
7.2.60.0030.01017.31
7.2.00.0070.00719.48
7.1.200.0100.00316.07
7.1.70.0030.00517.36
7.1.60.0040.00817.45
7.1.50.0110.02235.08
7.1.00.0000.08022.54
7.0.200.0000.01517.07
7.0.140.0030.07322.12
7.0.90.0030.09021.67
7.0.80.0030.04321.73
7.0.70.0000.04321.95
7.0.60.0030.08321.80
7.0.50.0030.08722.10
7.0.40.0070.03720.13
7.0.30.0000.04320.04
7.0.20.0070.07720.14
7.0.10.0030.06720.17
7.0.00.0000.08020.00
5.6.280.0030.07321.13
5.6.240.0030.04020.55
5.6.230.0000.05320.71
5.6.220.0070.05020.57
5.6.210.0030.04320.62
5.6.200.0070.04721.04
5.6.190.0100.05721.05
5.6.180.0030.04320.96
5.6.170.0000.07321.05
5.6.160.0070.07321.09
5.6.150.0000.08721.09
5.6.140.0070.07320.93
5.6.130.0130.07021.05
5.6.120.0030.08021.00
5.6.110.0030.08321.10
5.6.100.0030.08020.95
5.6.90.0030.06321.05
5.6.80.0000.08020.41
5.6.70.0030.07020.31
5.6.60.0130.06320.39
5.6.50.0030.08020.48
5.6.40.0030.07720.42
5.6.30.0000.04720.53
5.6.20.0100.07020.32
5.6.10.0100.07320.31
5.6.00.0100.07320.30
5.5.380.0000.05020.42
5.5.370.0070.07720.45
5.5.360.0030.07320.45
5.5.350.0130.08020.38
5.5.340.0100.07320.64
5.5.330.0000.05720.83
5.5.320.0000.04720.83
5.5.310.0030.07720.90
5.5.300.0030.08320.88
5.5.290.0100.07720.79
5.5.280.0070.04320.81
5.5.270.0030.08320.83
5.5.260.0000.08320.73
5.5.250.0030.04020.44
5.5.240.0070.07720.13
5.5.230.0030.08020.30
5.5.220.0030.05020.25
5.5.210.0070.07720.13
5.5.200.0000.07720.16
5.5.190.0100.04020.19
5.5.180.0100.07020.25
5.5.160.0100.05019.98
5.5.150.0070.04320.24
5.5.140.0000.07020.18
5.5.130.0030.08020.23
5.5.120.0130.06720.23
5.5.110.0000.04019.98
5.5.100.0030.08020.16
5.5.90.0030.06720.05
5.5.80.0030.07320.09
5.5.70.0070.07320.04
5.5.60.0030.07020.14
5.5.50.0100.07020.15
5.5.40.0100.04720.15
5.5.30.0000.08020.00
5.5.20.0030.07320.03
5.5.10.0030.06720.01
5.5.00.0030.06720.08
5.4.450.0030.06719.43
5.4.440.0030.08319.32
5.4.430.0030.05319.48
5.4.420.0070.07719.46
5.4.410.0030.07319.33
5.4.400.0000.05719.05
5.4.390.0070.03718.97
5.4.380.0000.05719.16
5.4.370.0000.06319.18
5.4.360.0030.07319.13
5.4.350.0000.07719.14
5.4.340.0070.05719.03
5.4.320.0100.06318.92
5.4.310.0070.06319.19
5.4.300.0100.03319.05
5.4.290.0030.07319.14
5.4.280.0070.07319.18
5.4.270.0000.04318.90
5.4.260.0030.07718.95
5.4.250.0030.07718.90
5.4.240.0070.07319.22
5.4.230.0100.07019.02
5.4.220.0000.08019.03
5.4.210.0030.07319.04
5.4.200.0030.08019.04
5.4.190.0000.06318.94
5.4.180.0030.07318.83
5.4.170.0030.07719.22
5.4.160.0030.07319.03
5.4.150.0030.04319.03
5.4.140.0070.07016.42
5.4.130.0030.07016.41
5.4.120.0000.03316.41
5.4.110.0000.04316.43
5.4.100.0070.05716.48
5.4.90.0030.04316.50
5.4.80.0070.03716.42
5.4.70.0030.04016.43
5.4.60.0000.07716.41
5.4.50.0030.04016.36
5.4.40.0070.05016.37
5.4.30.0000.06716.55
5.4.20.0000.04316.36
5.4.10.0000.07316.41
5.4.00.0100.06315.77
5.3.290.0070.04014.71
5.3.280.0070.07314.70
5.3.270.0100.07014.73
5.3.260.0070.04014.66
5.3.250.0000.04314.71
5.3.240.0070.07314.70
5.3.230.0030.05014.54
5.3.220.0030.04014.62
5.3.210.0000.08314.69
5.3.200.0000.04314.54
5.3.190.0070.07314.63
5.3.180.0070.05714.53
5.3.170.0030.07014.48
5.3.160.0030.07014.50
5.3.150.0030.04314.70
5.3.140.0070.06014.64
5.3.130.0000.06714.63
5.3.120.0030.07314.50
5.3.110.0030.07714.64
5.3.100.0000.04713.96
5.3.90.0070.04014.05
5.3.80.0070.06714.07
5.3.70.0170.03314.08
5.3.60.0070.06313.99
5.3.50.0000.07314.09
5.3.40.0070.05713.95
5.3.30.0070.06713.92
5.3.20.0000.04313.75
5.3.10.0030.07313.72
5.3.00.0070.06713.78
5.2.170.0000.03711.20
5.2.160.0000.06011.00
5.2.150.0070.04711.19
5.2.140.0030.06311.14
5.2.130.0070.05711.16
5.2.120.0000.06311.22
5.2.110.0100.05311.00
5.2.100.0000.06311.24
5.2.90.0000.06711.16
5.2.80.0030.04711.16
5.2.70.0000.05711.18
5.2.60.0030.03311.11
5.2.50.0070.02711.04
5.2.40.0030.03010.86
5.2.30.0000.06710.98
5.2.20.0070.03310.96
5.2.10.0030.06011.00
5.2.00.0030.06010.66
5.1.60.0070.04710.30
5.1.50.0000.05310.30
5.1.40.0000.05310.30
5.1.30.0000.05710.34
5.1.20.0070.04710.32
5.1.10.0030.03710.30
5.1.00.0030.05310.30
5.0.50.0070.04010.30
5.0.40.0030.03010.30
5.0.30.0000.06710.30
5.0.20.0030.04010.30
5.0.10.0030.04310.30
5.0.00.0000.06310.30
4.4.90.0070.01310.30
4.4.80.0100.02310.30
4.4.70.0030.01710.30
4.4.60.0030.03010.30
4.4.50.0070.03010.30
4.4.40.0000.02710.30
4.4.30.0000.03010.30
4.4.20.0030.03710.30
4.4.10.0000.02310.30
4.4.00.0000.03010.30
4.3.110.0000.02310.30
4.3.100.0000.03710.30
4.3.90.0070.02710.30
4.3.80.0000.04010.30
4.3.70.0000.02010.30
4.3.60.0000.03310.30
4.3.50.0030.03710.30
4.3.40.0000.05010.30
4.3.30.0000.02010.30
4.3.20.0030.02010.30
4.3.10.0030.01710.30
4.3.00.0000.03010.30

preferences:
43.21 ms | 401 KiB | 5 Q