3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function __clone() { $this->x = clone $this->x; } } $a = new A(); $a->x = new StdClass(); $b = clone $a; var_dump($a, $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)
8.3.60.0140.00318.68
8.3.50.0070.01023.04
8.3.40.0000.01418.76
8.3.30.0070.00718.86
8.3.20.0070.00020.29
8.3.10.0040.00423.66
8.3.00.0030.00619.38
8.2.180.0150.00616.63
8.2.170.0110.00422.96
8.2.160.0090.01220.52
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0140.00326.16
8.2.120.0030.00521.10
8.2.110.0100.00017.55
8.2.100.0040.00717.72
8.2.90.0050.00317.91
8.2.80.0090.00018.09
8.2.70.0060.00317.50
8.2.60.0040.00417.38
8.2.50.0030.00618.07
8.2.40.0050.00218.16
8.2.30.0050.00318.04
8.2.20.0020.00517.49
8.2.10.0080.00017.84
8.2.00.0040.00417.61
8.1.280.0070.00725.92
8.1.270.0040.00423.98
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00623.78
8.1.230.0040.00821.04
8.1.220.0000.00917.74
8.1.210.0030.00618.77
8.1.200.0090.00017.25
8.1.190.0000.00917.36
8.1.180.0000.00918.10
8.1.170.0000.00818.51
8.1.160.0000.00821.86
8.1.150.0030.00518.77
8.1.140.0030.00617.45
8.1.130.0000.00717.77
8.1.120.0070.00017.28
8.1.110.0040.00417.36
8.1.100.0000.00717.26
8.1.90.0040.00317.31
8.1.80.0050.00317.28
8.1.70.0000.00717.27
8.1.60.0060.00317.48
8.1.50.0070.00017.39
8.1.40.0040.00417.51
8.1.30.0000.00817.63
8.1.20.0040.00417.52
8.1.10.0040.00417.53
8.1.00.0000.00817.43
8.0.300.0050.00319.91
8.0.290.0040.00416.63
8.0.280.0000.00818.38
8.0.270.0030.00317.93
8.0.260.0030.00317.18
8.0.250.0030.00316.82
8.0.240.0030.00316.93
8.0.230.0030.00316.88
8.0.220.0070.00016.84
8.0.210.0030.00316.70
8.0.200.0000.00616.84
8.0.190.0040.00416.86
8.0.180.0040.00416.77
8.0.170.0050.00216.75
8.0.160.0030.00316.85
8.0.150.0040.00416.74
8.0.140.0000.00716.80
8.0.130.0040.00413.29
8.0.120.0000.00816.75
8.0.110.0040.00416.81
8.0.100.0030.00616.79
8.0.90.0040.00416.75
8.0.80.0030.01216.70
8.0.70.0000.00716.88
8.0.60.0030.00516.89
8.0.50.0000.00716.88
8.0.30.0110.01117.09
8.0.20.0140.00717.40
8.0.10.0030.00516.81
8.0.00.0100.00716.62
7.4.330.0000.00515.00
7.4.320.0060.00016.49
7.4.300.0060.00016.55
7.4.290.0070.00016.53
7.4.280.0030.00316.59
7.4.270.0030.00316.60
7.4.260.0030.00716.50
7.4.250.0030.00516.46
7.4.240.0030.00516.49
7.4.230.0000.00716.57
7.4.220.0210.00316.51
7.4.210.0030.01216.69
7.4.200.0030.00316.34
7.4.160.0060.00916.39
7.4.150.0140.01117.40
7.4.140.0100.00817.86
7.4.130.0060.01216.57
7.4.120.0090.00816.36
7.4.110.0120.00616.64
7.4.100.0050.01116.52
7.4.90.0110.00616.53
7.4.80.0100.00719.39
7.4.70.0040.01316.52
7.4.60.0030.01316.44
7.4.50.0040.00416.47
7.4.40.0060.01216.37
7.4.30.0050.01016.53
7.4.00.0060.00914.93
7.3.330.0000.00513.16
7.3.320.0050.00013.18
7.3.310.0000.00716.33
7.3.300.0040.00416.18
7.3.290.0030.01216.36
7.3.280.0070.01116.28
7.3.270.0040.01917.40
7.3.260.0090.01716.50
7.3.250.0120.00916.44
7.3.240.0030.01416.45
7.3.230.0170.00016.50
7.3.210.0060.01216.41
7.3.200.0030.01419.39
7.3.190.0090.00916.44
7.3.180.0060.01016.32
7.3.170.0100.00616.55
7.3.160.0040.01216.32
7.3.120.0070.01014.91
7.3.110.0090.00314.59
7.3.100.0080.00814.81
7.3.90.0040.01114.64
7.3.80.0000.01314.74
7.3.70.0100.00714.86
7.3.60.0040.01114.80
7.3.50.0000.01114.94
7.3.40.0030.00714.52
7.3.30.0000.01314.99
7.3.20.0070.00416.59
7.3.10.0040.00816.73
7.3.00.0060.00616.77
7.2.330.0030.01516.70
7.2.320.0170.00616.67
7.2.310.0130.00316.78
7.2.300.0150.00916.71
7.2.290.0110.01116.66
7.2.250.0090.00915.13
7.2.240.0070.01114.61
7.2.230.0070.01114.71
7.2.220.0120.00614.85
7.2.210.0060.01015.00
7.2.200.0000.01014.91
7.2.190.0030.01014.93
7.2.180.0030.01314.99
7.2.170.0030.00914.73
7.2.60.0040.00816.91
7.2.00.0040.00719.36
7.1.330.0070.00715.80
7.1.320.0060.00615.90
7.1.310.0030.01315.71
7.1.300.0040.00415.71
7.1.290.0060.00615.52
7.1.280.0060.00915.74
7.1.270.0070.00315.69
7.1.260.0030.01015.91
7.1.200.0030.01015.56
7.1.100.0300.00716.98
7.1.70.0000.02116.87
7.1.60.0150.00619.40
7.1.50.0070.00716.94
7.1.00.0000.08022.36
7.0.200.0040.00416.68
7.0.140.0130.06721.98
7.0.60.0070.08320.04
7.0.50.0000.07317.87
7.0.40.0130.07720.05
7.0.30.0370.06720.06
7.0.20.0300.04720.09
7.0.10.0070.04020.21
7.0.00.0030.09020.07
5.6.280.0070.07021.02
5.6.210.0070.05020.50
5.6.200.0100.07718.24
5.6.190.0100.03720.57
5.6.180.0300.04720.57
5.6.170.0230.04020.48
5.6.160.0100.03720.52
5.6.150.0030.05018.25
5.6.140.0130.03318.28
5.6.130.0000.05318.11
5.6.120.0130.05720.90
5.6.110.0000.04320.94
5.6.100.0130.08320.96
5.6.90.0170.05721.03
5.6.80.0130.04320.39
5.5.350.0330.04720.34
5.5.340.0070.05318.01
5.5.330.0100.08320.22
5.5.320.0330.07320.29
5.5.310.0230.03720.18
5.5.300.0100.08017.97
5.5.290.0030.04018.04
5.5.280.0070.08020.82
5.5.270.0170.05020.68
5.5.260.0070.05320.89
5.5.250.0170.07320.66
5.5.240.0070.07320.19
5.4.450.0800.05319.39
5.4.440.0730.06319.45
5.4.430.0800.06719.58
5.4.420.1000.05019.51
5.4.410.0070.06019.03
5.4.400.0500.04018.78
5.4.390.0330.04318.60
5.4.380.0030.06318.72
5.4.370.0100.04718.77
5.4.360.0100.04718.61
5.4.350.0060.04112.02
5.4.340.0090.03712.02
5.4.320.0040.03812.50
5.4.310.0070.03912.50
5.4.300.0060.04112.50
5.4.290.0040.04112.49
5.4.280.0050.03712.40
5.4.270.0080.03612.39
5.4.260.0030.03912.39
5.4.250.0040.03812.39
5.4.240.0060.03612.39
5.4.230.0050.03912.39
5.4.220.0030.03812.38
5.4.210.0090.04412.39
5.4.200.0030.03912.39
5.4.190.0050.03612.38
5.4.180.0120.04012.39
5.4.170.0100.03712.39
5.4.160.0060.04112.39
5.4.150.0070.03612.39
5.4.140.0100.04212.07
5.4.130.0030.04212.06
5.4.120.0060.03312.01
5.4.110.0070.03312.01
5.4.100.0020.03912.01
5.4.90.0060.03612.01
5.4.80.0100.03212.01
5.4.70.0030.04112.01
5.4.60.0070.03812.01
5.4.50.0070.03812.01
5.4.40.0060.03712.00
5.4.30.0050.03611.99
5.4.20.0050.03612.00
5.4.10.0070.03911.99
5.4.00.0030.04111.48
5.3.290.0070.03712.80
5.3.280.0030.03912.71
5.3.270.0050.03812.72
5.3.260.0110.03512.72
5.3.250.0040.03912.72
5.3.240.0080.04212.72
5.3.230.0080.04412.71
5.3.220.0120.03912.68
5.3.210.0050.03912.68
5.3.200.0060.04812.68
5.3.190.0090.03612.68
5.3.180.0090.03512.67
5.3.170.0100.04712.67
5.3.160.0070.04812.68
5.3.150.0090.05112.67
5.3.140.0060.03912.66
5.3.130.0060.04712.66
5.3.120.0060.04612.66
5.3.110.0060.04612.66
5.3.100.0050.03812.12
5.3.90.0030.04112.09
5.3.80.0050.03812.09
5.3.70.0060.03712.10
5.3.60.0050.03612.07
5.3.50.0080.03412.03
5.3.40.0040.03812.02
5.3.30.0070.03511.98
5.3.20.0050.03711.76
5.3.10.0070.03311.72
5.3.00.0080.03411.72
5.2.170.0050.0319.22
5.2.160.0050.0319.22
5.2.150.0100.0269.22
5.2.140.0050.0339.22
5.2.130.0040.0299.18
5.2.120.0020.0329.18
5.2.110.0040.0319.18
5.2.100.0070.0279.17
5.2.90.0080.0309.18
5.2.80.0030.0329.17
5.2.70.0060.0299.17
5.2.60.0060.0299.13
5.2.50.0040.0399.09
5.2.40.0020.0329.07
5.2.30.0030.0319.05
5.2.20.0080.0269.03
5.2.10.0050.0308.94
5.2.00.0050.0288.80
5.1.60.0040.0238.09
5.1.50.0080.0258.09
5.1.40.0040.0248.07
5.1.30.0040.0268.41
5.1.20.0060.0278.43
5.1.10.0050.0278.16
5.1.00.0080.0308.16
5.0.50.0070.0176.64
5.0.40.0030.0196.50
5.0.30.0040.0306.32
5.0.20.0070.0156.27
5.0.10.0070.0206.25
5.0.00.0040.0356.24
4.4.90.0050.0234.78
4.4.80.0030.0154.75
4.4.70.0010.0184.75
4.4.60.0030.0154.75
4.4.50.0010.0204.77
4.4.40.0040.0284.71
4.4.30.0040.0194.76
4.4.20.0040.0144.84
4.4.10.0030.0154.85
4.4.00.0040.0304.76
4.3.110.0030.0204.67
4.3.100.0070.0104.67
4.3.90.0040.0174.63
4.3.80.0030.0234.58
4.3.70.0030.0144.63
4.3.60.0040.0214.63
4.3.50.0020.0164.63
4.3.40.0020.0254.54
4.3.30.0020.0163.30
4.3.20.0060.0183.28
4.3.10.0010.0173.24
4.3.00.0130.0206.98

preferences:
46.95 ms | 401 KiB | 5 Q