3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace { class bar{} } namespace RN\Pitt { $classh = '\bar'; var_dump(new $classh); }

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)
8.3.40.0120.00618.67
8.3.30.0140.00018.91
8.3.20.0040.00420.05
8.3.10.0030.00621.90
8.3.00.0060.00317.80
8.2.170.0110.00422.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00020.92
8.2.110.0040.00422.33
8.2.100.0040.00717.78
8.2.90.0050.00219.05
8.2.80.0040.00417.97
8.2.70.0030.00617.50
8.2.60.0000.00917.90
8.2.50.0060.00318.07
8.2.40.0050.00219.94
8.2.30.0000.00818.00
8.2.20.0000.00717.53
8.2.10.0000.00817.87
8.2.00.0000.00717.61
8.1.270.0030.01223.75
8.1.260.0050.00226.35
8.1.250.0030.00628.09
8.1.240.0090.00321.79
8.1.230.0070.00420.97
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0030.00517.13
8.1.180.0040.00418.10
8.1.170.0080.00018.46
8.1.160.0030.00321.95
8.1.150.0040.00418.81
8.1.140.0040.00417.30
8.1.130.0070.00017.80
8.1.120.0000.00817.41
8.1.110.0070.00017.33
8.1.100.0070.00017.40
8.1.90.0030.00317.43
8.1.80.0030.00317.29
8.1.70.0070.00017.34
8.1.60.0000.00817.55
8.1.50.0040.00417.44
8.1.40.0040.00417.49
8.1.30.0030.00617.45
8.1.20.0050.00317.43
8.1.10.0000.00817.48
8.1.00.0040.00417.39
8.0.300.0080.00018.77
8.0.290.0000.00716.63
8.0.280.0000.00718.26
8.0.270.0030.00317.11
8.0.260.0080.00018.30
8.0.250.0030.00316.81
8.0.240.0030.00316.90
8.0.230.0070.00016.78
8.0.220.0040.00416.90
8.0.210.0000.00716.80
8.0.200.0060.00316.78
8.0.190.0040.00416.82
8.0.180.0040.00416.79
8.0.170.0040.00416.87
8.0.160.0030.00516.72
8.0.150.0040.00416.68
8.0.140.0030.00516.84
8.0.130.0030.00313.20
8.0.120.0070.00016.73
8.0.110.0000.00816.73
8.0.100.0040.00416.84
8.0.90.0030.00316.88
8.0.80.0070.00716.78
8.0.70.0030.00316.79
8.0.60.0020.00516.67
8.0.50.0050.00216.86
8.0.30.0150.01217.00
8.0.20.0140.00617.40
8.0.10.0040.00416.90
8.0.00.0130.00316.58
7.4.330.0030.00315.12
7.4.320.0000.00616.58
7.4.300.0040.00416.46
7.4.290.0000.00716.37
7.4.280.0050.00316.52
7.4.270.0000.00716.40
7.4.260.0000.00716.35
7.4.250.0020.00516.54
7.4.240.0030.00316.39
7.4.230.0050.00216.19
7.4.220.0100.00716.61
7.4.210.0070.00716.42
7.4.200.0050.00216.36
7.4.160.0120.00316.36
7.4.150.0110.00717.40
7.4.140.0050.01217.86
7.4.130.0120.00916.39
7.4.120.0110.00716.43
7.4.110.0110.01116.63
7.4.100.0060.01316.36
7.4.90.0040.01516.50
7.4.80.0090.01219.39
7.4.70.0150.00316.36
7.4.60.0190.00016.60
7.4.50.0070.00016.43
7.4.40.0090.01316.64
7.4.30.0060.01216.37
7.4.00.0060.00315.05
7.3.330.0070.00013.10
7.3.320.0000.00513.11
7.3.310.0040.00416.25
7.3.300.0000.00616.28
7.3.290.0090.00616.24
7.3.280.0080.01116.21
7.3.270.0030.01617.40
7.3.260.0110.00716.31
7.3.240.0100.00716.13
7.3.230.0090.00616.39
7.3.210.0030.01316.30
7.3.200.0130.00319.39
7.3.190.0080.01216.60
7.3.180.0060.01216.41
7.3.170.0120.00616.55
7.3.160.0040.01116.30
7.3.120.0120.00314.69
7.3.10.0060.00616.44
7.3.00.0080.00816.43
7.2.330.0120.01216.36
7.2.320.0100.00616.62
7.2.310.0080.00816.65
7.2.300.0040.01216.30
7.2.290.0110.01116.37
7.2.130.0050.00816.59
7.2.120.0090.00616.94
7.2.110.0030.01016.96
7.2.100.0070.01016.79
7.2.90.0070.01016.92
7.2.80.0130.00016.96
7.2.70.0000.01016.66
7.2.60.0040.00916.69
7.2.50.0030.01016.79
7.2.40.0030.00616.70
7.2.30.0070.00716.89
7.2.20.0070.00316.92
7.2.10.0090.00017.01
7.2.00.0040.01018.02
7.1.250.0000.01215.71
7.1.200.0090.00315.74
7.1.100.0100.00318.28
7.1.70.0090.00317.08
7.1.60.0140.01119.25
7.1.50.0090.01316.89
7.1.00.0000.08022.57
7.0.200.0000.01016.85
7.0.140.0030.07322.04
7.0.60.0030.04319.82
7.0.50.0030.04717.77
7.0.40.0070.04720.26
7.0.30.0270.07720.21
7.0.20.0270.08020.19
7.0.10.0100.08020.12
7.0.00.0000.05720.23
5.6.280.0070.07020.76
5.6.210.0130.07320.62
5.6.200.0030.04318.34
5.6.190.0070.09020.55
5.6.180.0230.04020.64
5.6.170.0270.07320.39
5.6.160.0170.06720.57
5.6.150.0070.08318.16
5.6.140.0100.03318.23
5.6.130.0070.08018.20
5.6.120.0100.04021.12
5.6.110.0070.08720.95
5.6.100.0100.08320.96
5.6.90.0070.06321.03
5.6.80.0130.07320.37
5.5.350.0000.03320.52
5.5.340.0030.04717.99
5.5.330.0100.06720.42
5.5.320.0200.04020.27
5.5.310.0230.06020.34
5.5.300.0100.04317.98
5.5.290.0070.04718.02
5.5.280.0070.04020.89
5.5.270.0130.06720.87
5.5.260.0130.07320.86
5.5.250.0030.06720.68
5.5.240.0400.04720.06
5.4.450.0070.04719.63
5.4.440.0300.04019.64
5.4.430.0030.05019.32
5.4.420.0200.04019.54
5.4.410.0300.03319.41
5.4.400.0430.04718.95
5.4.390.0430.03319.09
5.4.380.0170.05018.77
5.4.370.0130.05318.74
5.4.360.0200.05018.79
5.4.350.0100.05318.55
5.4.340.0170.05318.63
5.4.320.0050.03712.49
5.4.310.0060.03812.49
5.4.300.0050.04212.49
5.4.290.0050.04112.49
5.4.280.0070.03612.39
5.4.270.0080.03612.39
5.4.260.0070.03712.39
5.4.250.0040.04112.39
5.4.240.0050.04212.39
5.4.230.0100.03712.38
5.4.220.0070.05112.38
5.4.210.0080.03412.39
5.4.200.0040.04212.39
5.4.190.0080.03512.38
5.4.180.0090.03312.38
5.4.170.0070.04212.39
5.4.160.0040.03912.38
5.4.150.0050.03712.38
5.4.140.0050.03912.07
5.4.130.0040.04012.06
5.4.120.0050.04412.02
5.4.110.0060.03612.01
5.4.100.0080.03712.01
5.4.90.0050.04212.01
5.4.80.0070.03512.01
5.4.70.0100.03512.00
5.4.60.0080.03812.00
5.4.50.0040.04012.01
5.4.40.0080.03911.99
5.4.30.0090.03411.99
5.4.20.0050.03811.99
5.4.10.0050.03811.98
5.4.00.0040.04411.48
5.3.290.0020.04312.80
5.3.280.0060.03812.70
5.3.270.0070.03812.72
5.3.260.0070.04012.72
5.3.250.0120.04012.72
5.3.240.0070.03512.72
5.3.230.0090.03412.71
5.3.220.0060.03712.68
5.3.210.0080.04112.68
5.3.200.0090.03312.68
5.3.190.0040.04212.68
5.3.180.0030.04412.67
5.3.170.0050.03912.67
5.3.160.0080.03412.67
5.3.150.0080.03512.67
5.3.140.0060.03912.66
5.3.130.0040.04212.66
5.3.120.0090.03612.66
5.3.110.0040.04412.66
5.3.100.0090.03712.12
5.3.90.0030.04112.09
5.3.80.0040.03912.08
5.3.70.0070.03512.08
5.3.60.0090.03512.07
5.3.50.0050.03712.02
5.3.40.0070.03612.02
5.3.30.0060.03811.97
5.3.20.0080.03511.75
5.3.10.0050.04011.72
5.3.00.0080.04011.71
5.2.170.0090.0299.18
5.2.160.0060.0299.18
5.2.150.0060.0299.18
5.2.140.0070.0279.18
5.2.130.0050.0279.14
5.2.120.0050.0289.14
5.2.110.0050.0309.14
5.2.100.0070.0269.14
5.2.90.0030.0319.14
5.2.80.0060.0339.14
5.2.70.0070.0319.14
5.2.60.0070.0339.09
5.2.50.0030.0379.06
5.2.40.0060.0309.04
5.2.30.0070.0289.01
5.2.20.0040.0299.00
5.2.10.0040.0368.93
5.2.00.0060.0318.78
5.1.60.0050.0238.07
5.1.50.0050.0268.07
5.1.40.0040.0258.04
5.1.30.0030.0298.40
5.1.20.0040.0308.41
5.1.10.0050.0288.14
5.1.00.0090.0228.14
5.0.50.0040.0226.62
5.0.40.0050.0196.47
5.0.30.0030.0336.29
5.0.20.0020.0216.27
5.0.10.0050.0186.24
5.0.00.0020.0326.23
4.4.90.0030.0174.78
4.4.80.0020.0164.75
4.4.70.0020.0164.76
4.4.60.0020.0214.76
4.4.50.0030.0154.77
4.4.40.0040.0304.71
4.4.30.0030.0214.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0060.0214.76
4.3.110.0020.0174.67
4.3.100.0030.0154.66
4.3.90.0040.0144.63
4.3.80.0040.0244.58
4.3.70.0020.0164.63
4.3.60.0020.0164.62
4.3.50.0050.0154.63
4.3.40.0030.0284.54
4.3.30.0030.0203.29
4.3.20.0030.0193.26
4.3.10.0020.0203.22
4.3.00.0100.01315.27

preferences:
39.92 ms | 400 KiB | 5 Q