3v4l.org

run code in 300+ PHP versions simultaneously
<?php function lastWeekDay ($mnt) { $result = strtotime("last day of $mnt"); $day = date('D', $result); if ('Sun' === $day) { $result -= 86400 * 2; } if ('Sat' === $day) { $result -= 86400; } return $result; } echo date('Y-m-d', mktime(0,0,0,date('n')-1,1,date('Y'))); echo date("Y-m-d");

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)
8.3.60.0180.00018.30
8.3.50.0170.00322.05
8.3.40.0090.00618.91
8.3.30.0170.00020.37
8.3.20.0040.00420.34
8.3.10.0060.00322.08
8.3.00.0080.00022.48
8.2.180.0210.00016.50
8.2.170.0140.00022.96
8.2.160.0100.00322.25
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0000.00721.04
8.2.110.0030.00622.15
8.2.100.0110.00317.53
8.2.90.0000.00719.22
8.2.80.0000.00819.07
8.2.70.0040.00417.50
8.2.60.0050.00517.65
8.2.50.0080.00018.07
8.2.40.0030.00618.18
8.2.30.0070.00018.07
8.2.20.0000.00717.77
8.2.10.0040.00417.74
8.2.00.0040.00417.61
8.1.280.0070.00725.92
8.1.270.0050.00323.99
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.79
8.1.230.0080.00419.16
8.1.220.0040.00417.76
8.1.210.0040.00418.77
8.1.200.0030.00617.22
8.1.190.0040.00417.28
8.1.180.0000.01118.10
8.1.170.0000.00818.65
8.1.160.0060.00318.79
8.1.150.0030.00518.75
8.1.140.0040.00417.39
8.1.130.0040.00417.71
8.1.120.0000.00717.39
8.1.110.0080.00017.51
8.1.100.0050.00217.48
8.1.90.0070.00017.45
8.1.80.0040.00417.45
8.1.70.0000.00717.32
8.1.60.0030.00617.53
8.1.50.0040.00417.48
8.1.40.0020.00517.47
8.1.30.0050.00417.55
8.1.20.0000.00917.48
8.1.10.0050.00217.49
8.1.00.0050.00317.50
8.0.300.0040.00418.77
8.0.290.0000.00717.18
8.0.280.0070.00018.59
8.0.270.0050.00317.16
8.0.260.0080.00016.87
8.0.250.0000.00717.00
8.0.240.0070.00316.98
8.0.230.0040.00416.93
8.0.220.0040.00417.01
8.0.210.0030.00317.02
8.0.200.0040.00417.08
8.0.190.0000.00817.08
8.0.180.0050.00217.03
8.0.170.0000.00816.95
8.0.160.0040.00317.04
8.0.150.0070.00016.97
8.0.140.0000.00716.90
8.0.130.0040.00413.33
8.0.120.0040.00416.83
8.0.110.0070.00017.04
8.0.100.0000.00716.92
8.0.90.0040.00416.96
8.0.80.0060.00917.02
8.0.70.0050.00216.96
8.0.60.0040.00416.80
8.0.50.0070.00016.97
8.0.30.0140.00517.12
8.0.20.0100.00917.40
8.0.10.0070.00017.05
8.0.00.0100.00816.89
7.4.330.0000.00515.00
7.4.320.0000.00616.53
7.4.300.0000.00716.45
7.4.290.0030.00716.56
7.4.280.0040.00416.54
7.4.270.0000.00716.48
7.4.260.0040.00413.16
7.4.250.0040.00416.43
7.4.240.0050.00216.47
7.4.230.0060.00016.54
7.4.220.0050.01616.50
7.4.210.0090.00516.51
7.4.200.0040.00216.66
7.4.190.0070.00016.63
7.4.160.0100.00616.41
7.4.150.0120.00617.40
7.4.140.0100.00717.86
7.4.130.0120.00416.58
7.4.120.0100.00716.56
7.4.110.0120.00916.64
7.4.100.0110.00516.59
7.4.90.0130.00316.50
7.4.80.0100.01019.39
7.4.70.0100.01416.55
7.4.60.0070.00816.53
7.4.50.0000.00916.69
7.4.40.0060.01222.77
7.4.30.0100.00716.60
7.4.00.0040.01315.02
7.3.330.0000.00513.39
7.3.320.0000.00513.14
7.3.310.0030.00316.35
7.3.300.0070.00016.26
7.3.290.0000.01416.33
7.3.280.0100.00816.35
7.3.270.0120.00617.40
7.3.260.0140.00316.39
7.3.250.0060.01216.47
7.3.240.0100.00716.39
7.3.230.0040.01216.45
7.3.210.0140.00316.45
7.3.200.0140.00719.39
7.3.190.0150.00616.57
7.3.180.0100.01016.51
7.3.170.0070.01416.32
7.3.160.0150.00316.68
7.3.120.0100.00715.00
7.3.110.0080.00814.92
7.3.100.0110.00614.78
7.3.90.0060.00914.72
7.3.80.0040.01114.69
7.3.70.0020.01114.87
7.3.60.0100.00514.72
7.3.50.0090.00614.86
7.3.40.0050.00514.64
7.3.30.0110.00514.81
7.3.20.0030.01216.59
7.3.10.0110.00316.66
7.3.00.0060.00716.59
7.2.330.0100.00716.75
7.2.320.0150.00316.56
7.2.310.0110.00716.59
7.2.300.0000.01616.91
7.2.290.0030.01316.57
7.2.250.0080.01115.01
7.2.240.0050.01514.82
7.2.230.0090.00715.03
7.2.220.0000.01514.94
7.2.210.0070.01114.99
7.2.200.0020.01214.72
7.2.190.0030.01214.98
7.2.180.0060.01115.07
7.2.170.0100.00315.07
7.2.130.0110.00616.68
7.2.120.0060.00617.07
7.2.110.0050.00516.55
7.2.100.0030.01016.74
7.2.90.0080.00516.88
7.2.80.0040.00916.84
7.2.70.0070.01017.08
7.2.60.0020.01116.83
7.2.50.0070.00716.84
7.2.40.0000.01516.83
7.2.30.0090.00616.66
7.2.20.0060.00616.86
7.2.10.0070.00716.79
7.2.00.0040.01018.15
7.1.330.0050.01115.88
7.1.320.0080.00315.86
7.1.310.0070.00715.72
7.1.300.0060.00515.67
7.1.290.0050.00715.76
7.1.280.0060.00415.73
7.1.270.0080.00815.73
7.1.260.0030.01215.78
7.1.250.0060.00615.89
7.1.200.0000.01115.74
7.1.100.0000.01218.12
7.1.70.0050.00217.35
7.1.60.0090.01519.32
7.1.50.0140.01117.04
7.1.00.0030.03322.46
7.0.200.0040.00416.76
7.0.140.0000.08022.06
7.0.90.0100.04019.94
7.0.80.0170.04320.13
7.0.70.0170.07719.96
7.0.60.0030.08320.08
7.0.50.0070.05020.26
7.0.40.0070.08320.14
7.0.30.0100.08019.99
7.0.20.0000.04320.15
7.0.10.0070.08020.08
7.0.00.0070.06020.10
5.6.280.0000.07320.99
5.6.240.0000.07320.63
5.6.230.0100.06020.63
5.6.220.0000.09020.68
5.6.210.0070.07020.65
5.6.200.0000.08721.08
5.6.190.0130.06021.08
5.6.180.0070.08021.04
5.6.170.0170.07021.07
5.6.160.0100.08021.10
5.6.150.0000.07021.14
5.6.140.0100.07721.05
5.6.130.0000.06721.02
5.6.120.0030.09020.96
5.6.110.0100.08021.04
5.6.100.0070.07020.95
5.6.90.0130.06720.98
5.6.80.0000.05320.42
5.6.70.0070.04320.55
5.6.60.0070.06720.31
5.6.50.0070.03720.50
5.6.40.0000.05020.39
5.6.30.0070.07320.44
5.6.20.0070.08020.52
5.6.10.0130.05720.44
5.6.00.0000.05020.36
5.5.380.0130.05320.40
5.5.370.0030.08020.55
5.5.360.0000.07720.49
5.5.350.0100.07320.36
5.5.340.0070.05320.65
5.5.330.0070.08320.89
5.5.320.0100.07720.80
5.5.310.0130.06020.89
5.5.300.0030.04020.81
5.5.290.0100.07720.73
5.5.280.0000.08720.86
5.5.270.0130.07320.77
5.5.260.0030.04320.86
5.5.250.0070.07720.54
5.5.240.0030.06720.30
5.5.230.0030.05020.26
5.5.220.0030.08020.11
5.5.210.0000.05320.14
5.5.200.0100.07020.13
5.5.190.0030.06720.18
5.5.180.0070.03720.19
5.5.160.0070.07320.26
5.5.150.0070.07320.22
5.5.140.0000.08720.08
5.5.130.0000.04720.26
5.5.120.0030.07720.26
5.5.110.0000.09319.98
5.5.100.0030.07720.03
5.5.90.0070.07720.07
5.5.80.0030.06320.10
5.5.70.0100.05720.09
5.5.60.0030.07720.06
5.5.50.0070.06720.09
5.5.40.0070.07320.17
5.5.30.0070.07020.00
5.5.20.0100.06720.06
5.5.10.0200.05719.95
5.5.00.0100.04019.96
5.4.450.0100.07719.17
5.4.440.0030.05319.23
5.4.430.0000.07719.53
5.4.420.0070.03719.44
5.4.410.0070.06319.24
5.4.400.0130.06718.96
5.4.390.0100.07018.90
5.4.380.0130.06319.12
5.4.370.0130.06719.13
5.4.360.0130.05318.90
5.4.350.0070.04019.05
5.4.340.0070.07019.23
5.4.320.0100.04319.03
5.4.310.0170.06718.88
5.4.300.0100.07318.88
5.4.290.0170.06019.04
5.4.280.0070.08019.25
5.4.270.0070.04719.18
5.4.260.0100.04019.13
5.4.250.0070.06719.11
5.4.240.0100.06019.13
5.4.230.0070.07019.07
5.4.220.0100.04319.17
5.4.210.0030.05019.14
5.4.200.0100.07018.81
5.4.190.0000.06719.15
5.4.180.0070.07319.17
5.4.170.0000.04719.04
5.4.160.0070.06319.03
5.4.150.0100.04019.11
5.4.140.0070.07316.41
5.4.130.0100.06016.42
5.4.120.0030.06316.39
5.4.110.0100.07016.43
5.4.100.0070.07316.35
5.4.90.0100.06716.48
5.4.80.0000.06016.32
5.4.70.0000.05316.41
5.4.60.0100.03016.41
5.4.50.0030.07316.36
5.4.40.0000.07716.35
5.4.30.0000.05316.48
5.4.20.0100.07016.36
5.4.10.0000.04016.31
5.4.00.0030.04315.78
5.3.290.0100.07014.75
5.3.280.0070.06314.59
5.3.270.0030.04714.73
5.3.260.0070.07314.65
5.3.250.0070.04014.58
5.3.240.0000.08014.67
5.3.230.0030.06014.69
5.3.220.0100.04714.57
5.3.210.0100.06714.49
5.3.200.0030.04714.57
5.3.190.0130.06314.48
5.3.180.0100.07314.66
5.3.170.0000.04714.45
5.3.160.0030.07314.51
5.3.150.0100.07314.54
5.3.140.0000.07014.50
5.3.130.0070.07314.48
5.3.120.0000.05014.55
5.3.110.0100.07314.60
5.3.100.0070.04314.16
5.3.90.0070.05714.05
5.3.80.0000.04014.07
5.3.70.0070.07014.02
5.3.60.0000.07714.04
5.3.50.0070.06314.00
5.3.40.0030.04313.92
5.3.30.0070.07313.96
5.3.20.0170.06313.68
5.3.10.0030.07313.75
5.3.00.0100.04013.61
5.2.170.0100.07311.04
5.2.160.0070.06311.16
5.2.150.0130.05311.15
5.2.140.0170.05011.00
5.2.130.0030.06010.96
5.2.120.0100.03711.21
5.2.110.0000.06011.23
5.2.100.0030.05710.97
5.2.90.0030.06310.96
5.2.80.0100.06011.15
5.2.70.0000.04011.11
5.2.60.0070.03011.09
5.2.50.0070.06011.08
5.2.40.0030.03011.11
5.2.30.0000.03710.86
5.2.20.0000.06311.08
5.2.10.0000.03710.88
5.2.00.0070.05710.70
5.1.60.0000.03010.43
5.1.50.0000.04310.43
5.1.40.0030.03010.43
5.1.30.0030.05710.43
5.1.20.0030.05310.43
5.1.10.0070.05010.43
5.1.00.0000.04010.43
5.0.50.0070.03310.43
5.0.40.0070.04010.43
5.0.30.0070.05010.43
5.0.20.0070.02010.43
5.0.10.0000.03010.43
5.0.00.0000.03710.43
4.4.90.0030.03710.43
4.4.80.0000.03710.43
4.4.70.0000.02010.43
4.4.60.0000.04010.43
4.4.50.0000.03710.43
4.4.40.0030.05310.43
4.4.30.0000.04010.43
4.4.20.0030.03310.43
4.4.10.0030.03010.43
4.4.00.0000.05710.43
4.3.110.0000.04010.43
4.3.100.0030.03310.43
4.3.90.0000.03710.43
4.3.80.0030.04710.43
4.3.70.0030.01710.43
4.3.60.0030.02010.43
4.3.50.0000.03710.43
4.3.40.0000.05710.43
4.3.30.0000.04010.43
4.3.20.0000.03710.43
4.3.10.0000.03710.43
4.3.00.0030.01710.43

preferences:
44.52 ms | 401 KiB | 5 Q