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run code in 300+ PHP versions simultaneously
<?php namespace CParent { class Helper{} class Test{ /** * @var Helper */ public $helper; public function __construnct() { $this->helper = new Helper(); } } } namespace Child { class Helper{} class Test extends \CParent\Test {} } namespace { $qwe = new Child\Test(); var_dump($qwe); }

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)
8.3.60.0070.00716.63
8.3.50.0130.00821.94
8.3.40.0120.00318.40
8.3.30.0140.00418.90
8.3.20.0040.00420.37
8.3.10.0000.00823.50
8.3.00.0040.00419.26
8.2.180.0140.00718.16
8.2.170.0040.01122.96
8.2.160.0130.00020.35
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00221.90
8.2.110.0000.00921.96
8.2.100.0130.00017.72
8.2.90.0040.00418.95
8.2.80.0040.00418.04
8.2.70.0050.00317.50
8.2.60.0000.00819.63
8.2.50.0000.00918.07
8.2.40.0030.00619.76
8.2.30.0050.00319.66
8.2.20.0080.00017.61
8.2.10.0030.00517.91
8.2.00.0000.00717.61
8.1.280.0110.00425.92
8.1.270.0030.01224.01
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0060.00619.08
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0030.00617.10
8.1.190.0000.00717.41
8.1.180.0030.00618.10
8.1.170.0000.00818.55
8.1.160.0030.00621.89
8.1.150.0070.00318.45
8.1.140.0050.00317.39
8.1.130.0030.00317.87
8.1.120.0000.00717.31
8.1.110.0000.00717.39
8.1.100.0000.00717.24
8.1.90.0070.00017.41
8.1.80.0030.00517.46
8.1.70.0040.00417.40
8.1.60.0040.00417.58
8.1.50.0000.00817.48
8.1.40.0000.00717.33
8.1.30.0050.00317.45
8.1.20.0030.00617.61
8.1.10.0080.00017.47
8.1.00.0000.00817.47
8.0.300.0110.00018.77
8.0.290.0000.00817.05
8.0.280.0000.00618.29
8.0.270.0030.00317.11
8.0.260.0030.00317.23
8.0.250.0000.00716.89
8.0.240.0030.00316.78
8.0.230.0040.00416.79
8.0.220.0070.00016.74
8.0.210.0070.00016.73
8.0.200.0000.00616.85
8.0.190.0000.00916.84
8.0.180.0080.00016.86
8.0.170.0000.00816.73
8.0.160.0030.00316.83
8.0.150.0040.00416.73
8.0.140.0000.00716.69
8.0.130.0000.00613.27
8.0.120.0000.00716.69
8.0.110.0070.00016.85
8.0.100.0040.00416.70
8.0.90.0040.00416.70
8.0.80.0080.00816.78
8.0.70.0000.00716.78
8.0.60.0040.00416.94
8.0.50.0050.00216.93
8.0.30.0110.00816.86
8.0.20.0110.00817.40
8.0.10.0040.00417.04
8.0.00.0110.00716.60
7.4.330.0060.00015.08
7.4.320.0060.00016.45
7.4.300.0060.00016.35
7.4.290.0000.00716.57
7.4.280.0030.00616.57
7.4.270.0030.00316.48
7.4.260.0030.00316.44
7.4.250.0000.00816.50
7.4.240.0040.00416.48
7.4.230.0080.00016.29
7.4.220.0070.01016.39
7.4.210.0070.00716.50
7.4.200.0040.00416.61
7.4.190.0030.00316.49
7.4.160.0100.00616.34
7.4.150.0150.00917.40
7.4.140.0090.01117.86
7.4.130.0050.01716.47
7.4.120.0100.00816.51
7.4.110.0090.01216.39
7.4.100.0060.01516.52
7.4.90.0040.01316.53
7.4.80.0090.00919.39
7.4.70.0040.01116.30
7.4.60.0130.00316.31
7.4.50.0000.00916.44
7.4.40.0100.01016.36
7.4.30.0060.00916.48
7.4.00.0060.00614.76
7.3.330.0030.00513.04
7.3.320.0000.00513.18
7.3.310.0040.00416.28
7.3.300.0040.00216.12
7.3.290.0080.01216.19
7.3.280.0100.00616.17
7.3.270.0090.00917.40
7.3.260.0060.01216.24
7.3.250.0060.01216.07
7.3.240.0030.01416.32
7.3.230.0030.01416.39
7.3.210.0070.01016.30
7.3.200.0060.01619.39
7.3.190.0110.00816.19
7.3.180.0060.00916.33
7.3.170.0040.01216.27
7.3.160.0060.00916.30
7.3.120.0100.00714.38
7.3.10.0090.00616.57
7.3.00.0070.00416.46
7.2.330.0090.01116.59
7.2.320.0060.01016.60
7.2.310.0060.01216.34
7.2.300.0030.01316.43
7.2.290.0140.00916.66
7.2.130.0120.00016.66
7.2.120.0110.00316.45
7.2.110.0120.00016.51
7.2.100.0000.01516.79
7.2.90.0040.00816.77
7.2.80.0060.00616.53
7.2.70.0000.01016.77
7.2.60.0050.00916.73
7.2.50.0080.00516.72
7.2.40.0070.00416.84
7.2.30.0060.00616.66
7.2.20.0040.00716.86
7.2.10.0030.00716.65
7.2.00.0090.00616.88
7.1.250.0030.01015.41
7.1.200.0080.00815.65
7.1.100.0030.01018.02
7.1.70.0090.00016.96
7.1.60.0040.00717.28
7.1.50.0140.01116.80
7.1.00.0000.08022.28
7.0.200.0150.00416.54
7.0.140.0000.07721.95
7.0.60.0070.03720.04
7.0.50.0130.04017.89
7.0.40.0170.07720.10
7.0.30.0300.06320.11
7.0.20.0400.07020.22
7.0.10.0100.03720.30
7.0.00.0000.05720.12
5.6.280.0070.07020.86
5.6.210.0100.08020.51
5.6.200.0070.06318.16
5.6.190.0030.04320.61
5.6.180.0300.05020.41
5.6.170.0230.08020.58
5.6.160.0100.08720.46
5.6.150.0100.07718.16
5.6.140.0000.05318.18
5.6.130.0100.05018.21
5.6.120.0100.04321.01
5.6.110.0030.08721.03
5.6.100.0170.07321.11
5.6.90.0130.06721.00
5.6.80.0000.08720.40
5.5.350.0130.03720.47
5.5.340.0130.06017.98
5.5.330.0070.04720.13
5.5.320.0200.03720.34
5.5.310.0370.07020.25
5.5.300.0030.06018.01
5.5.290.0070.08017.95
5.5.280.0070.04720.77
5.5.270.0100.08020.95
5.5.260.0030.08720.77
5.5.250.0130.07320.78
5.5.240.0030.07320.26
5.4.450.0830.04319.49
5.4.440.0700.07319.56
5.4.430.0470.06319.47
5.4.420.0830.08319.30
5.4.410.0100.05019.35
5.4.400.0670.05319.27
5.4.390.0570.06019.27
5.4.380.0400.04718.75
5.4.370.0330.04718.60
5.4.360.0330.05718.56
5.4.350.0270.05718.81
5.4.340.0270.05718.76
5.4.320.0090.03612.50
5.4.310.0070.04412.50
5.4.300.0050.03912.51
5.4.290.0050.04012.49
5.4.280.0050.03712.39
5.4.270.0070.03512.39
5.4.260.0040.03912.39
5.4.250.0050.04412.39
5.4.240.0100.04212.39
5.4.230.0130.08412.38
5.4.220.0130.04312.38
5.4.210.0110.04712.38
5.4.200.0060.04412.38
5.4.190.0050.03912.38
5.4.180.0050.03812.38
5.4.170.0030.03912.39
5.4.160.0090.05512.39
5.4.150.0050.04012.38
5.4.140.0040.04312.07
5.4.130.0050.03712.05
5.4.120.0050.03612.01
5.4.110.0080.04712.01
5.4.100.0050.03912.00
5.4.90.0030.04212.00
5.4.80.0050.04312.01
5.4.70.0080.05212.00
5.4.60.0090.05112.01
5.4.50.0080.04212.00
5.4.40.0060.03511.99
5.4.30.0050.03911.99
5.4.20.0070.05811.98
5.4.10.0090.04811.99
5.4.00.0050.04911.48
5.3.290.0050.04412.80
5.3.280.0060.05012.71
5.3.270.0100.05012.73
5.3.260.0040.04112.72
5.3.250.0050.04012.71
5.3.240.0030.04112.72
5.3.230.0060.03812.71
5.3.220.0070.04412.68
5.3.210.0110.06212.68
5.3.200.0090.05212.68
5.3.190.0110.04612.68
5.3.180.0090.04512.67
5.3.170.0160.06012.67
5.3.160.0090.04512.67
5.3.150.0060.04212.68
5.3.140.0050.04212.66
5.3.130.0100.05212.66
5.3.120.0120.04912.66
5.3.110.0120.06412.66
5.3.100.0160.03912.13
5.3.90.0100.04912.11
5.3.80.0110.05212.11
5.3.70.0050.05512.11
5.3.60.0080.04412.09
5.3.50.0060.03712.04
5.3.40.0070.03912.04
5.3.30.0030.03912.00
5.3.20.0090.04711.78
5.3.10.0040.04011.74
5.3.00.0060.05311.73
5.2.170.0060.0429.18
5.2.160.0080.0409.18
5.2.150.0080.0409.18
5.2.140.0090.0419.17
5.2.130.0080.0399.14
5.2.120.0070.0399.14
5.2.110.0080.0269.15
5.2.100.0040.0319.14
5.2.90.0040.0309.14
5.2.80.0070.0319.14
5.2.70.0040.0329.14
5.2.60.0060.0299.09
5.2.50.0040.0319.06
5.2.40.0080.0289.04
5.2.30.0050.0419.01
5.2.20.0100.0369.00
5.2.10.0080.0468.93
5.2.00.0050.0428.79
5.1.60.0130.0428.06
5.1.50.0140.0418.06
5.1.40.0070.0338.05
5.1.30.0080.0538.39
5.1.20.0170.0408.41
5.1.10.0150.0568.14
5.1.00.0060.0378.14
5.0.50.0060.0276.63
5.0.40.0070.0246.48
5.0.30.0030.0426.29
5.0.20.0030.0226.26
5.0.10.0060.0276.24
5.0.00.0100.0606.23
4.4.90.0020.0244.78
4.4.80.0020.0194.75
4.4.70.0030.0164.76
4.4.60.0050.0174.75
4.4.50.0040.0184.77
4.4.40.0110.0464.71
4.4.30.0040.0204.76
4.4.20.0050.0214.85
4.4.10.0020.0214.85
4.4.00.0050.0304.76
4.3.110.0050.0254.67
4.3.100.0040.0154.66
4.3.90.0040.0354.64
4.3.80.0080.0284.59
4.3.70.0030.0284.63
4.3.60.0060.0224.63
4.3.50.0020.0244.63
4.3.40.0060.0434.54
4.3.30.0070.0253.28
4.3.20.0030.0263.26
4.3.10.0090.0333.22
4.3.00.0300.03010.55

preferences:
35.42 ms | 401 KiB | 5 Q