3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace RN\Pitt { class Amt {} } namespace { $obj = new RN\Pitt\Amt; var_dump($obj); $sub = 'Pitt'; $class = 'Amt'; $name = "\\RN\\$sub\\$class"; $obj = new $class; var_dump($obj); }

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)
8.3.60.0110.00418.43
8.3.50.0090.01022.05
8.3.40.0170.00018.82
8.3.30.0090.00618.69
8.3.20.0080.00020.34
8.3.10.0000.00821.78
8.3.00.0000.00817.79
8.2.180.0140.00018.54
8.2.170.0060.00922.96
8.2.160.0130.00320.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0110.00826.16
8.2.120.0030.00619.76
8.2.110.0000.00822.16
8.2.100.0080.00319.86
8.2.90.0030.00519.26
8.2.80.0050.00317.97
8.2.70.0040.00417.75
8.2.60.0070.00018.03
8.2.50.0000.00818.07
8.2.40.0070.00018.22
8.2.30.0060.00318.14
8.2.20.0000.00817.73
8.2.10.0070.00018.04
8.2.00.0070.00017.80
8.1.280.0060.00925.92
8.1.270.0120.00324.02
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.01023.90
8.1.230.0040.00719.08
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00617.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00818.52
8.1.160.0070.00021.94
8.1.150.0020.00518.72
8.1.140.0030.00617.26
8.1.130.0030.00317.76
8.1.120.0040.00417.41
8.1.110.0090.00017.38
8.1.100.0000.00817.29
8.1.90.0050.00217.39
8.1.80.0070.00017.29
8.1.70.0030.00317.22
8.1.60.0040.00417.44
8.1.50.0060.00317.55
8.1.40.0030.00617.49
8.1.30.0050.00317.71
8.1.20.0030.00517.65
8.1.10.0030.00517.59
8.1.00.0030.00517.47
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0070.00018.49
8.0.270.0030.00317.16
8.0.260.0000.00617.20
8.0.250.0000.00716.98
8.0.240.0030.00316.91
8.0.230.0070.00016.92
8.0.220.0070.00016.99
8.0.210.0070.00016.84
8.0.200.0060.00417.02
8.0.190.0000.00717.03
8.0.180.0000.00716.85
8.0.170.0070.00017.04
8.0.160.0000.00716.82
8.0.150.0060.00316.79
8.0.140.0050.00216.93
8.0.130.0050.00013.34
8.0.120.0030.00516.94
8.0.110.0000.00716.88
8.0.100.0080.00016.76
8.0.90.0070.00016.86
8.0.80.0070.00716.91
8.0.70.0000.00816.82
8.0.60.0050.00316.99
8.0.50.0000.00716.77
8.0.30.0060.01317.25
8.0.20.0110.01217.40
8.0.10.0000.00816.94
8.0.00.0150.00616.78
7.4.330.0050.00015.00
7.4.320.0060.00016.55
7.4.300.0000.00616.51
7.4.290.0040.00416.45
7.4.280.0000.00716.58
7.4.270.0050.00216.50
7.4.260.0040.00416.44
7.4.250.0030.00616.48
7.4.240.0030.00316.41
7.4.230.0070.00016.68
7.4.220.0060.01616.56
7.4.210.0030.01116.53
7.4.200.0070.00016.56
7.4.160.0110.00516.55
7.4.150.0070.01017.40
7.4.140.0080.01117.86
7.4.130.0110.00816.49
7.4.120.0110.00716.56
7.4.110.0140.00316.51
7.4.100.0100.01316.46
7.4.90.0160.00816.48
7.4.80.0110.00719.39
7.4.70.0060.01016.49
7.4.60.0110.00716.34
7.4.50.0000.00516.47
7.4.40.0060.01016.55
7.4.30.0070.01016.41
7.4.00.0070.00714.85
7.3.330.0070.00013.39
7.3.320.0000.00513.34
7.3.310.0040.00316.38
7.3.300.0030.00316.36
7.3.290.0130.00716.33
7.3.280.0120.00716.31
7.3.270.0100.01317.40
7.3.260.0090.01516.46
7.3.250.0080.00916.45
7.3.240.0080.00816.30
7.3.230.0090.01316.63
7.3.210.0080.00916.42
7.3.200.0110.00819.39
7.3.190.0070.01516.35
7.3.180.0070.01016.53
7.3.170.0030.01316.60
7.3.160.0090.00616.51
7.3.120.0060.01014.51
7.2.330.0090.01616.70
7.2.320.0100.00716.63
7.2.310.0110.00616.34
7.2.300.0100.00716.73
7.2.290.0100.00616.46
7.2.60.0100.00316.86
7.2.00.0030.01019.29
7.1.200.0000.01515.72
7.1.70.0000.00917.34
7.1.60.0070.01719.25
7.1.50.0060.01617.14
7.1.00.0070.07022.45
7.0.200.0080.00816.62
7.0.140.0030.07322.15
7.0.60.0070.07019.86
7.0.50.0030.04017.95
7.0.40.0170.07720.08
7.0.30.0330.08020.13
7.0.20.0430.07320.08
7.0.10.0070.05320.41
7.0.00.0030.08320.29
5.6.280.0070.07020.86
5.6.210.0100.07320.61
5.6.200.0030.04018.16
5.6.190.0070.07020.33
5.6.180.0330.06720.61
5.6.170.0230.07320.50
5.6.160.0000.04320.52
5.6.150.0100.08318.19
5.6.140.0100.03018.16
5.6.130.0100.07718.17
5.6.120.0100.03720.99
5.6.110.0070.08321.08
5.6.100.0130.07720.99
5.6.90.0100.08021.09
5.6.80.0100.04720.50
5.5.350.4230.03720.49
5.5.340.0070.08017.97
5.5.330.0030.06020.57
5.5.320.0200.04320.27
5.5.310.0400.07020.27
5.5.300.0030.03717.98
5.5.290.0100.07318.07
5.5.280.0070.07720.76
5.5.270.0100.08020.84
5.5.260.0070.04020.75
5.5.250.0030.04020.71
5.5.240.0100.06720.26
5.4.450.0230.04319.28
5.4.440.0270.04319.32
5.4.430.0700.03719.56
5.4.420.0170.04319.38
5.4.410.0770.04019.44
5.4.400.0630.02019.23
5.4.390.0100.03718.83
5.4.380.0770.05718.75
5.4.370.1130.05318.49
5.4.360.0670.05718.73
5.4.350.0600.06318.55
5.4.340.0800.05718.73
5.4.320.0060.03712.50
5.4.310.0090.03612.49
5.4.300.0070.04512.50
5.4.290.0050.04512.49
5.4.280.0080.03412.39
5.4.270.0070.04112.39
5.4.260.0100.03912.39
5.4.250.0080.03712.39
5.4.240.0080.03612.39
5.4.230.0040.04012.38
5.4.220.0100.04912.38
5.4.210.0060.03612.38
5.4.200.0100.04012.38
5.4.190.0040.04312.38
5.4.180.0070.04312.38
5.4.170.0060.03712.39
5.4.160.0070.03812.39
5.4.150.0090.03612.38
5.4.140.0050.03912.07
5.4.130.0050.03812.05
5.4.120.0060.03512.01
5.4.110.0070.04012.01
5.4.100.0060.04012.01
5.4.90.0050.04012.01
5.4.80.0070.03812.01
5.4.70.0050.03612.00
5.4.60.0070.03612.00
5.4.50.0070.04112.00
5.4.40.0040.03711.99
5.4.30.0110.03211.99
5.4.20.0070.03511.99
5.4.10.0040.04111.99
5.4.00.0060.04011.48
5.3.290.0070.03812.80
5.3.280.0040.04012.71
5.3.270.0070.05212.73
5.3.260.0020.04312.71
5.3.250.0080.04112.72
5.3.240.0030.05312.72
5.3.230.0060.04112.71
5.3.220.0090.04212.68
5.3.210.0050.04412.68
5.3.200.0070.03512.68
5.3.190.0090.03712.68
5.3.180.0090.03812.67
5.3.170.0040.03912.67
5.3.160.0030.04312.67
5.3.150.0070.03512.67
5.3.140.0080.03512.66
5.3.130.0020.04212.66
5.3.120.0050.03912.66
5.3.110.0050.04112.66
5.3.100.0070.03512.12
5.3.90.0080.04012.09
5.3.80.0060.04012.09
5.3.70.0050.04312.09
5.3.60.0050.04112.07
5.3.50.0070.04312.02
5.3.40.0050.04112.02
5.3.30.0050.03511.98
5.3.20.0110.04111.76
5.3.10.0040.03711.72
5.3.00.0090.03911.71
5.2.170.0060.0409.18
5.2.160.0070.0369.18
5.2.150.0070.0329.18
5.2.140.0040.0329.18
5.2.130.0040.0299.14
5.2.120.0030.0329.14
5.2.110.0030.0309.14
5.2.100.0040.0339.14
5.2.90.0040.0309.14
5.2.80.0030.0339.14
5.2.70.0030.0379.14
5.2.60.0050.0359.09
5.2.50.0080.0279.06
5.2.40.0050.0289.03
5.2.30.0060.0359.01
5.2.20.0070.0289.01
5.2.10.0060.0338.92
5.2.00.0060.0318.79
5.1.60.0060.0288.07
5.1.50.0030.0328.07
5.1.40.0020.0318.05
5.1.30.0050.0298.40
5.1.20.0060.0288.42
5.1.10.0050.0288.14
5.1.00.0040.0278.14
5.0.50.0030.0236.62
5.0.40.0040.0186.48
5.0.30.0070.0286.29
5.0.20.0050.0246.26
5.0.10.0060.0186.24
5.0.00.0020.0356.23
4.4.90.0020.0164.78
4.4.80.0040.0144.76
4.4.70.0030.0214.75
4.4.60.0020.0164.75
4.4.50.0030.0164.77
4.4.40.0030.0274.71
4.4.30.0020.0184.76
4.4.20.0020.0174.85
4.4.10.0030.0214.85
4.4.00.0040.0244.76
4.3.110.0030.0164.67
4.3.100.0050.0134.66
4.3.90.0030.0154.64
4.3.80.0010.0274.59
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0030.0254.63
4.3.40.0030.0264.54
4.3.30.0040.0153.28
4.3.20.0030.0173.26
4.3.10.0020.0163.21
4.3.00.0000.01315.27

preferences:
42.74 ms | 401 KiB | 5 Q