3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class A { private $x; final public function __sleep() { return array_keys(get_object_vars($this)); } } class B extends A {} var_dump(serialize(new B));

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)
8.3.40.0070.01018.59
8.3.30.0090.00519.09
8.3.20.0040.00420.21
8.3.10.0000.00823.36
8.3.00.0000.00819.25
8.2.170.0120.00922.96
8.2.160.0040.01120.19
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0160.00326.16
8.2.120.0070.00720.90
8.2.110.0070.00420.93
8.2.100.0040.00818.09
8.2.90.0030.00619.09
8.2.80.0030.00617.97
8.2.70.0030.00617.38
8.2.60.0050.00317.68
8.2.50.0030.00918.07
8.2.40.0000.00918.09
8.2.30.0050.00317.98
8.2.20.0040.00417.56
8.2.10.0040.00417.89
8.2.00.0040.00417.53
8.1.270.0050.00322.06
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0040.00420.96
8.1.230.0070.00419.10
8.1.220.0000.00817.74
8.1.210.0000.00718.77
8.1.200.0030.00617.23
8.1.190.0060.00317.10
8.1.180.0080.00018.10
8.1.170.0000.01118.66
8.1.160.0040.00421.87
8.1.150.0080.00018.70
8.1.140.0040.00417.24
8.1.130.0000.00717.76
8.1.120.0000.00717.34
8.1.110.0000.00817.30
8.1.100.0040.00417.22
8.1.90.0000.01017.32
8.1.80.0000.00717.34
8.1.70.0070.00017.33
8.1.60.0080.00017.54
8.1.50.0000.00817.44
8.1.40.0080.00017.44
8.1.30.0060.00317.60
8.1.20.0030.00517.49
8.1.10.0030.00617.41
8.1.00.0000.00817.36
8.0.300.0000.00818.77
8.0.290.0000.00716.63
8.0.280.0000.00718.32
8.0.270.0030.00317.20
8.0.260.0000.00617.25
8.0.250.0000.00816.99
8.0.240.0000.00816.96
8.0.230.0070.00016.85
8.0.220.0070.00016.77
8.0.210.0060.00016.87
8.0.200.0070.00016.87
8.0.190.0000.00816.87
8.0.180.0070.00016.89
8.0.170.0000.00816.86
8.0.160.0000.00716.89
8.0.150.0030.00316.79
8.0.140.0030.00316.82
8.0.130.0000.00613.30
8.0.120.0040.00416.84
8.0.110.0000.00816.70
8.0.100.0000.00716.79
8.0.90.0070.00016.82
8.0.80.0070.01316.71
8.0.70.0040.00416.71
8.0.60.0080.00016.70
8.0.50.0040.00416.82
8.0.30.0110.00817.16
8.0.20.0080.01217.40
8.0.10.0040.00416.82
8.0.00.0100.00716.62
7.4.330.0000.00515.00
7.4.320.0030.00316.39
7.4.300.0070.00016.59
7.4.290.0040.00416.46
7.4.280.0030.00316.52
7.4.270.0070.00016.50
7.4.260.0030.00416.42
7.4.250.0040.00416.50
7.4.240.0030.00516.48
7.4.230.0000.00716.43
7.4.220.0130.01316.36
7.4.210.0120.00616.46
7.4.200.0070.00016.55
7.4.160.0070.00716.69
7.4.150.0000.01817.40
7.4.140.0080.01017.86
7.4.130.0090.00916.38
7.4.120.0100.00716.61
7.4.110.0130.00516.40
7.4.100.0100.00616.59
7.4.90.0040.01316.59
7.4.80.0160.00619.39
7.4.70.0110.00616.48
7.4.60.0140.00316.55
7.4.50.0000.00516.56
7.4.40.0070.01016.54
7.4.30.0070.01016.58
7.4.00.0060.00914.78
7.3.330.0030.00313.30
7.3.320.0000.00513.31
7.3.310.0000.00716.20
7.3.300.0070.00016.32
7.3.290.0060.00916.32
7.3.280.0060.01116.33
7.3.270.0090.00917.40
7.3.260.0120.00616.38
7.3.250.0090.01016.31
7.3.240.0030.01316.24
7.3.230.0030.01316.39
7.3.210.0060.01316.19
7.3.200.0100.00616.52
7.3.190.0110.01116.31
7.3.180.0060.01216.25
7.3.170.0070.01116.38
7.3.160.0090.00916.18
7.3.120.0080.00914.48
7.3.110.0060.00914.62
7.3.100.0100.00314.74
7.3.90.0050.00914.63
7.3.80.0060.00814.94
7.3.70.0030.01214.69
7.3.60.0000.01014.65
7.3.50.0020.01214.43
7.3.40.0050.00714.63
7.3.30.0080.00414.67
7.3.20.0080.00716.59
7.3.10.0080.00616.49
7.3.00.0060.00516.56
7.2.330.0120.00616.34
7.2.320.0130.01016.27
7.2.310.0120.00616.26
7.2.300.0070.01016.43
7.2.290.0030.01316.66
7.2.250.0100.00914.54
7.2.240.0080.01014.62
7.2.230.0060.00914.92
7.2.220.0080.00814.86
7.2.210.0030.01014.70
7.2.200.0060.00814.93
7.2.190.0050.00814.69
7.2.180.0090.00614.63
7.2.170.0020.01014.85
7.2.00.0100.00319.18
7.1.330.0040.01115.63
7.1.320.0080.00715.83
7.1.310.0040.00715.65
7.1.300.0000.01215.71
7.1.290.0080.00315.53
7.1.280.0060.00615.63
7.1.270.0040.00815.46
7.1.260.0030.01015.73
7.1.200.0090.00015.88
7.1.100.0040.00418.10
7.1.70.0000.00717.06
7.1.60.0150.00619.40
7.1.50.0140.00716.81
7.1.00.0070.07322.51
7.0.200.0240.00314.45
7.0.140.0030.07022.05
7.0.60.0100.07320.05
7.0.50.0070.07017.96
7.0.40.0200.06320.39
7.0.30.0230.03720.21
7.0.20.0330.04720.27
7.0.10.0030.09020.07
7.0.00.0070.04720.15
5.6.280.0000.07720.93
5.6.210.0070.08320.48
5.6.200.0100.03718.16
5.6.190.0130.07320.75
5.6.180.0200.05720.68
5.6.170.0230.08020.58
5.6.160.0130.07020.43
5.6.150.0030.04018.28
5.6.140.0100.08018.15
5.6.130.0000.04318.22
5.6.120.0070.08020.99
5.6.110.0300.06321.03
5.6.100.0100.08320.89
5.6.90.0030.05720.98
5.6.80.0100.08020.53
5.5.350.0070.08320.45
5.5.340.0000.07018.02
5.5.330.0030.06020.29
5.5.320.0370.06320.20
5.5.310.0200.05720.26
5.5.300.0030.06018.02
5.5.290.0030.06318.00
5.5.280.0170.07720.88
5.5.270.0100.08320.84
5.5.260.0070.06020.71
5.5.250.0070.03720.68
5.5.240.0170.08020.35
5.4.450.0300.05319.64
5.4.440.0770.04019.42
5.4.430.0730.04719.56
5.4.420.0200.04319.32
5.4.410.0230.04319.20
5.4.400.0270.03719.20
5.4.390.0330.03019.08
5.4.380.0370.08018.59
5.4.370.0430.06318.76
5.4.360.0330.05318.50
5.4.350.0400.05318.56
5.4.340.0370.05718.53
5.4.320.0060.03612.50
5.4.310.0080.03512.50
5.4.300.0120.03112.50
5.4.290.0110.03312.50
5.4.280.0130.02712.39
5.4.270.0060.03412.39
5.4.260.0100.03212.39
5.4.250.0070.03612.39
5.4.240.0050.03712.39
5.4.230.0060.04012.39
5.4.220.0100.03112.38
5.4.210.0020.03712.39
5.4.200.0070.03512.39
5.4.190.0060.03412.39
5.4.180.0060.03512.38
5.4.170.0030.03812.40
5.4.160.0020.03912.39
5.4.150.0040.03712.39
5.4.140.0090.03812.07
5.4.130.0070.04112.05
5.4.120.0060.04712.01
5.4.110.0090.04612.01
5.4.100.0060.04212.01
5.4.90.0030.03812.02
5.4.80.0080.04412.01
5.4.70.0060.03312.01
5.4.60.0050.03612.01
5.4.50.0050.03512.01
5.4.40.0070.03912.00
5.4.30.0080.03311.99
5.4.20.0100.03711.99
5.4.10.0050.03412.00
5.4.00.0080.03311.48
5.3.290.0040.04012.80
5.3.280.0070.03712.71
5.3.270.0040.04112.73
5.3.260.0100.04112.72
5.3.250.0070.03612.72
5.3.240.0040.03912.72
5.3.230.0080.03712.71
5.3.220.0080.03812.68
5.3.210.0070.03812.68
5.3.200.0040.03812.68
5.3.190.0060.03912.68
5.3.180.0120.04512.67
5.3.170.0130.04312.67
5.3.160.0090.03612.67
5.3.150.0070.03512.67
5.3.140.0090.04812.66
5.3.130.0070.03612.66
5.3.120.0070.03712.66
5.3.110.0030.04012.66
5.3.100.0050.03712.12
5.3.90.0060.03512.10
5.3.80.0050.03712.09
5.3.70.0050.03612.09
5.3.60.0030.04412.08
5.3.50.0100.03812.03
5.3.40.0080.03412.02
5.3.30.0110.04811.98
5.3.20.0080.03611.77
5.3.10.0090.03611.73
5.3.00.0090.04111.71
5.2.170.0070.0289.22
5.2.160.0040.0309.22
5.2.150.0060.0299.22
5.2.140.0040.0309.22
5.2.130.0010.0329.18
5.2.120.0040.0299.18
5.2.110.0050.0289.18
5.2.100.0050.0289.18
5.2.90.0030.0309.18
5.2.80.0070.0279.17
5.2.70.0070.0329.17
5.2.60.0050.0419.13
5.2.50.0070.0399.09
5.2.40.0020.0319.07
5.2.30.0040.0309.04
5.2.20.0050.0279.03
5.2.10.0040.0288.94
5.2.00.0030.0308.80
5.1.60.0020.0258.09
5.1.50.0050.0258.09
5.1.40.0010.0278.06
5.1.30.0020.0288.41
5.1.20.0060.0368.43
5.1.10.0060.0238.16
5.1.00.0050.0248.16
5.0.50.0050.0206.59
5.0.40.0030.0196.50
5.0.30.0030.0316.31
5.0.20.0050.0196.27
5.0.10.0030.0196.26
5.0.00.0040.0306.25
4.4.90.0050.0204.78
4.4.80.0070.0214.75
4.4.70.0010.0244.75
4.4.60.0040.0164.76
4.4.50.0030.0194.77
4.4.40.0070.0204.71
4.4.30.0060.0204.76
4.4.20.0050.0314.84
4.4.10.0020.0164.85
4.4.00.0020.0274.76
4.3.110.0060.0194.67
4.3.100.0030.0194.66
4.3.90.0000.0174.64
4.3.80.0040.0294.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0040.0224.54
4.3.30.0010.0173.29
4.3.20.0030.0153.26
4.3.10.0010.0163.21
4.3.00.0030.01713.25

preferences:
39.7 ms | 400 KiB | 5 Q