3v4l.org

run code in 300+ PHP versions simultaneously
<?php $st = new stdClass(); $st->q = new stdClass(); $st->q->k = 1; $st->q->w = 2; $kl = clone $st->q; unset($kl->k); print_r($st); print_r($kl);

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)
8.3.70.0040.01116.58
8.3.60.0070.00718.30
8.3.50.0110.00622.01
8.3.40.0110.00718.79
8.3.30.0100.00318.92
8.3.20.0040.00420.16
8.3.10.0140.00021.90
8.3.00.0000.00817.55
8.2.180.0060.01216.63
8.2.170.0150.00622.96
8.2.160.0090.00620.57
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0170.00326.16
8.2.120.0060.00320.98
8.2.110.0040.00422.26
8.2.100.0080.00417.78
8.2.90.0000.00819.03
8.2.80.0030.00517.97
8.2.70.0030.00617.38
8.2.60.0090.00017.92
8.2.50.0000.00818.07
8.2.40.0050.00318.22
8.2.30.0030.00617.95
8.2.20.0050.00217.62
8.2.10.0050.00218.08
8.2.00.0020.00517.64
8.1.280.0040.01125.92
8.1.270.0030.00622.20
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00022.19
8.1.230.0040.00819.21
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0040.00417.22
8.1.190.0000.00817.23
8.1.180.0000.00918.10
8.1.170.0000.00818.41
8.1.160.0040.00421.96
8.1.150.0040.00418.85
8.1.140.0040.00417.40
8.1.130.0000.00817.83
8.1.120.0030.00417.36
8.1.110.0030.00517.29
8.1.100.0020.00517.42
8.1.90.0000.00817.25
8.1.80.0070.00017.30
8.1.70.0040.00417.32
8.1.60.0040.00417.54
8.1.50.0000.00717.55
8.1.40.0040.00417.53
8.1.30.0040.00417.48
8.1.20.0050.00317.58
8.1.10.0040.00417.56
8.1.00.0060.00317.49
8.0.300.0020.00518.77
8.0.290.0040.00416.63
8.0.280.0030.00318.38
8.0.270.0040.00417.26
8.0.260.0050.00317.06
8.0.250.0040.00416.81
8.0.240.0000.00616.80
8.0.230.0030.00316.76
8.0.220.0040.00416.82
8.0.210.0020.00516.79
8.0.200.0030.00316.80
8.0.190.0040.00416.87
8.0.180.0070.00016.82
8.0.170.0040.00416.81
8.0.160.0050.00316.72
8.0.150.0000.00816.79
8.0.140.0000.00816.68
8.0.130.0050.00013.23
8.0.120.0040.00416.69
8.0.110.0000.00716.82
8.0.100.0070.00016.71
8.0.90.0070.00016.94
8.0.80.0130.00316.88
8.0.70.0000.00716.70
8.0.60.0040.00416.76
8.0.50.0020.00516.70
8.0.30.0100.01416.97
8.0.20.0130.00617.40
8.0.10.0070.00017.02
8.0.00.0110.00716.68
7.4.330.0020.00215.00
7.4.320.0060.00016.44
7.4.300.0040.00416.54
7.4.290.0070.00016.29
7.4.280.0030.00616.39
7.4.270.0000.00716.46
7.4.260.0050.00216.53
7.4.250.0080.00016.50
7.4.240.0000.00716.37
7.4.230.0030.00316.43
7.4.220.0100.00716.41
7.4.210.0060.00916.37
7.4.200.0030.00316.54
7.4.160.0050.01116.47
7.4.150.0110.00717.40
7.4.140.0050.01217.86
7.4.130.0130.00316.37
7.4.120.0130.00516.38
7.4.110.0100.02316.38
7.4.100.0110.00716.31
7.4.90.0070.01016.37
7.4.80.0110.00619.39
7.4.70.0130.00316.31
7.4.60.0100.00816.51
7.4.50.0000.00716.30
7.4.40.0100.00716.38
7.4.30.0040.01216.53
7.4.00.0000.01015.03
7.3.330.0040.00412.97
7.3.320.0020.00213.13
7.3.310.0000.00716.32
7.3.300.0000.00616.13
7.3.290.0090.00916.22
7.3.280.0090.01016.24
7.3.270.0130.00317.40
7.3.260.0070.01016.58
7.3.250.0100.00716.42
7.3.240.0140.00916.43
7.3.230.0070.01016.39
7.3.210.0090.00816.32
7.3.200.0130.00319.39
7.3.190.0100.01016.39
7.3.180.0120.00416.36
7.3.170.0170.00016.59
7.3.160.0090.00616.43
7.3.120.0040.01114.98
7.2.330.0030.01316.78
7.2.320.0060.01116.78
7.2.310.0120.00416.71
7.2.300.0100.00616.57
7.2.290.0070.01016.76
7.2.60.0070.00716.73
7.2.00.0060.01219.32
7.1.200.0000.01215.74
7.1.100.0000.01017.80
7.1.70.0000.01216.85
7.1.60.0100.01319.25
7.1.50.0030.01316.96
7.1.00.0030.07722.48
7.0.200.0000.00716.80
7.0.140.0000.07721.98
7.0.60.0070.04319.87
7.0.50.0070.04317.84
7.0.40.0030.07320.27
7.0.30.0170.04320.33
7.0.20.0270.07720.09
7.0.10.0030.07720.06
7.0.00.0030.07720.20
5.6.280.0030.07321.07
5.6.210.0030.08720.76
5.6.200.0130.06018.15
5.6.190.0070.05720.77
5.6.180.0200.04020.43
5.6.170.0230.08320.38
5.6.160.0070.05020.59
5.6.150.0100.07718.11
5.6.140.0070.07318.11
5.6.130.0130.08018.23
5.6.120.0030.08021.05
5.6.110.0130.08021.09
5.6.100.0200.07720.95
5.6.90.0030.04321.07
5.6.80.0030.07020.28
5.5.350.0130.07720.47
5.5.340.0070.07718.02
5.5.330.0200.07720.07
5.5.320.0070.06720.18
5.5.310.0300.06320.29
5.5.300.0070.08717.99
5.5.290.0030.05017.98
5.5.280.0070.04320.87
5.5.270.0170.06020.83
5.5.260.0070.08020.84
5.5.250.0100.07020.64
5.5.240.3830.04020.15
5.4.450.0400.03719.50
5.4.440.0170.03319.14
5.4.430.0270.04019.57
5.4.420.0370.05019.45
5.4.410.0600.04719.32
5.4.400.0300.03719.18
5.4.390.0270.05019.08
5.4.380.0130.05718.67
5.4.370.0270.06318.50
5.4.360.0070.06018.59
5.4.350.0170.06718.56
5.4.340.0100.06018.61
5.4.320.0030.03812.45
5.4.310.0070.04312.45
5.4.300.0070.04112.46
5.4.290.0030.04112.45
5.4.280.0050.04312.35
5.4.270.0070.04112.35
5.4.260.0090.03812.35
5.4.250.0070.04512.35
5.4.240.0080.03512.35
5.4.230.0030.04112.34
5.4.220.0090.04012.34
5.4.210.0070.03612.34
5.4.200.0060.03812.34
5.4.190.0060.03812.34
5.4.180.0060.03712.34
5.4.170.0110.03512.35
5.4.160.0080.03412.35
5.4.150.0040.03712.34
5.4.140.0050.03812.02
5.4.130.0050.03612.02
5.4.120.0040.03711.97
5.4.110.0080.03411.97
5.4.100.0050.03711.97
5.4.90.0040.03911.97
5.4.80.0030.04011.97
5.4.70.0060.03511.96
5.4.60.0050.03611.96
5.4.50.0060.03511.96
5.4.40.0040.03711.95
5.4.30.0020.04011.95
5.4.20.0090.03311.95
5.4.10.0040.03711.95
5.4.00.0060.03611.44
5.3.290.0080.03712.80
5.3.280.0050.04012.71
5.3.270.0040.04212.73
5.3.260.0050.04012.72
5.3.250.0080.03612.72
5.3.240.0070.03712.72
5.3.230.0060.03812.70
5.3.220.0060.03712.68
5.3.210.0050.04012.68
5.3.200.0080.03512.68
5.3.190.0070.03712.67
5.3.180.0090.03412.67
5.3.170.0050.03812.66
5.3.160.0060.03712.68
5.3.150.0070.03812.67
5.3.140.0070.04012.66
5.3.130.0080.03812.66
5.3.120.0030.04312.66
5.3.110.0090.03612.66
5.3.100.0080.03612.12
5.3.90.0070.03612.08
5.3.80.0070.03612.07
5.3.70.0060.03812.07
5.3.60.0040.04012.06
5.3.50.0050.03812.00
5.3.40.0050.03812.00
5.3.30.0080.03411.94
5.3.20.0110.03111.72
5.3.10.0080.03311.69
5.3.00.0060.03911.68
5.2.170.0040.0319.18
5.2.160.0040.0309.17
5.2.150.0060.0299.18
5.2.140.0060.0299.17
5.2.130.0050.0299.14
5.2.120.0040.0309.14
5.2.110.0020.0329.14
5.2.100.0050.0289.14
5.2.90.0050.0299.14
5.2.80.0050.0309.13
5.2.70.0060.0299.13
5.2.60.0020.0349.09
5.2.50.0060.0299.05
5.2.40.0060.0289.03
5.2.30.0030.0329.01
5.2.20.0090.0259.00
5.2.10.0040.0298.93
5.2.00.0040.0308.79
5.1.60.0060.0228.07
5.1.50.0070.0228.07
5.1.40.0030.0268.05
5.1.30.0050.0268.41
5.1.20.0050.0268.43
5.1.10.0070.0238.15
5.1.00.0040.0268.16
5.0.50.0050.0196.63
5.0.40.0080.0206.49
5.0.30.0030.0346.30
5.0.20.0020.0256.27
5.0.10.0030.0206.25
5.0.00.0060.0286.24
4.4.90.0030.0174.78
4.4.80.0040.0174.75
4.4.70.0040.0174.76
4.4.60.0030.0164.75
4.4.50.0030.0224.77
4.4.40.0030.0294.70
4.4.30.0030.0184.76
4.4.20.0050.0134.84
4.4.10.0050.0134.85
4.4.00.0020.0264.76
4.3.110.0020.0174.67
4.3.100.0020.0164.66
4.3.90.0050.0124.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0050.0134.63
4.3.50.0030.0154.63
4.3.40.0040.0224.54
4.3.30.0040.0143.29
4.3.20.0030.0153.26
4.3.10.0010.0173.22
4.3.00.0100.01015.27

preferences:
45.35 ms | 401 KiB | 5 Q