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run code in 300+ PHP versions simultaneously
<?php class A { protected $test1; protected $test2; public function __construct () { var_dump(array_keys(get_class_vars(get_class($this)))); } } $a = new A();

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)
8.3.70.0150.00316.63
8.3.60.0090.00916.25
8.3.50.0080.01121.99
8.3.40.0090.00618.54
8.3.30.0090.00618.96
8.3.20.0050.00320.21
8.3.10.0050.00322.09
8.3.00.0040.00422.52
8.2.190.0070.00716.58
8.2.180.0110.01116.50
8.2.170.0100.00722.96
8.2.160.0100.00320.95
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0060.00319.11
8.2.110.0040.00719.45
8.2.100.0060.00617.72
8.2.90.0030.00519.05
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0060.00317.93
8.2.50.0000.01118.10
8.2.40.0050.00318.16
8.2.30.0040.00417.98
8.2.20.0040.00417.64
8.2.10.0000.00817.61
8.2.00.0040.00417.60
8.1.280.0090.00925.92
8.1.270.0040.00422.21
8.1.260.0090.00026.35
8.1.250.0050.00328.09
8.1.240.0050.00519.45
8.1.230.0040.00817.70
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0000.00917.35
8.1.190.0040.00417.10
8.1.180.0070.00018.10
8.1.170.0040.00418.47
8.1.160.0000.00721.86
8.1.150.0030.00518.56
8.1.140.0070.00017.38
8.1.130.0030.00617.78
8.1.120.0040.00417.33
8.1.110.0000.00917.43
8.1.100.0040.00417.31
8.1.90.0030.00517.29
8.1.80.0030.00317.38
8.1.70.0030.00317.36
8.1.60.0040.00417.45
8.1.50.0070.00017.54
8.1.40.0060.00317.53
8.1.30.0030.00617.65
8.1.20.0040.00417.62
8.1.10.0020.00517.55
8.1.00.0000.00817.38
8.0.300.0040.00418.77
8.0.290.0080.00016.75
8.0.280.0000.00818.29
8.0.270.0040.00417.11
8.0.260.0030.00716.65
8.0.250.0000.00816.77
8.0.240.0030.00316.81
8.0.230.0030.00316.76
8.0.220.0000.00716.68
8.0.210.0030.00316.75
8.0.200.0000.00916.77
8.0.190.0040.00416.76
8.0.180.0000.00716.85
8.0.170.0040.00416.87
8.0.160.0050.00316.72
8.0.150.0030.00316.73
8.0.140.0050.00216.80
8.0.130.0000.00513.25
8.0.120.0040.00416.69
8.0.110.0080.00016.70
8.0.100.0000.00816.82
8.0.90.0050.00316.89
8.0.80.0130.00316.88
8.0.70.0030.00516.77
8.0.60.0040.00416.79
8.0.50.0000.00716.71
8.0.30.0150.00617.06
8.0.20.0080.01017.40
8.0.10.0000.00716.77
8.0.00.0070.00916.69
7.4.330.0020.00215.00
7.4.320.0060.00016.50
7.4.300.0030.00316.57
7.4.290.0000.00716.50
7.4.280.0000.00816.60
7.4.270.0000.00716.40
7.4.260.0080.00416.60
7.4.250.0070.00016.41
7.4.240.0000.00816.56
7.4.230.0030.00316.67
7.4.220.0090.01316.54
7.4.210.0050.00916.51
7.4.200.0020.00516.39
7.4.190.0050.00216.65
7.4.160.0110.00816.32
7.4.150.0100.00717.40
7.4.140.0080.01317.86
7.4.130.0070.01416.36
7.4.120.0070.01016.57
7.4.110.0100.00716.47
7.4.100.0110.00616.57
7.4.90.0140.00316.47
7.4.80.0030.01419.39
7.4.70.0120.00616.64
7.4.60.0100.00616.49
7.4.50.0040.00416.34
7.4.40.0030.01122.77
7.4.30.0160.00016.51
7.4.00.0130.00315.09
7.3.330.0000.00513.00
7.3.320.0000.00513.23
7.3.310.0000.00716.26
7.3.300.0000.00616.25
7.3.290.0060.00916.25
7.3.280.0070.01016.26
7.3.270.0160.00017.40
7.3.260.0100.00616.55
7.3.250.0040.01316.32
7.3.240.0140.00416.20
7.3.230.0140.00416.43
7.3.210.0130.00316.34
7.3.200.0060.01419.39
7.3.190.0100.00716.40
7.3.180.0060.01016.12
7.3.170.0070.01116.27
7.3.160.0100.00616.10
7.3.120.0030.01414.95
7.2.330.0160.00816.54
7.2.320.0090.01416.67
7.2.310.0110.00516.50
7.2.300.0200.00416.53
7.2.290.0170.00016.63
7.2.60.0050.00516.88
7.2.00.0060.00319.38
7.1.200.0070.01115.72
7.1.100.0000.01118.14
7.1.70.0070.00016.86
7.1.60.0070.01819.82
7.1.50.0080.00816.89
7.1.00.0000.08322.46
7.0.200.0000.00816.41
7.0.140.0000.07722.13
7.0.60.0100.07319.92
7.0.50.0070.04017.75
7.0.40.0130.07720.40
7.0.30.0130.04720.34
7.0.20.0200.04720.09
7.0.10.0100.05020.34
7.0.00.0030.05720.22
5.6.280.0030.07320.89
5.6.210.0170.07020.61
5.6.200.0030.04318.14
5.6.190.0130.08020.48
5.6.180.0270.06320.33
5.6.170.0270.03720.44
5.6.160.0170.05320.50
5.6.150.0130.03718.16
5.6.140.0070.03718.14
5.6.130.0000.05718.23
5.6.120.0070.08021.04
5.6.110.0170.06021.14
5.6.100.0100.03321.01
5.6.90.0130.07021.07
5.6.80.0130.07720.32
5.5.350.0270.07320.39
5.5.340.0070.05317.96
5.5.330.0100.08020.43
5.5.320.0230.07720.25
5.5.310.0330.04320.27
5.5.300.0000.08717.99
5.5.290.0100.08317.95
5.5.280.0030.07720.80
5.5.270.0100.08720.96
5.5.260.0070.07020.68
5.5.250.0170.07720.80
5.5.240.0000.04020.28
5.4.450.0830.05019.70
5.4.440.0770.06319.30
5.4.430.0130.05019.52
5.4.420.0130.08319.64
5.4.410.0070.05318.70
5.4.400.0100.05718.84
5.4.390.0070.05318.63
5.4.380.0100.05318.76
5.4.370.0570.05318.63
5.4.360.0300.04718.56
5.4.350.0270.05718.48
5.4.340.0170.06318.61
5.4.320.0070.03512.50
5.4.310.0020.04912.50
5.4.300.0050.04012.50
5.4.290.0070.03712.50
5.4.280.0070.03312.39
5.4.270.0090.03312.39
5.4.260.0100.07319.09
5.4.250.0000.08318.83
5.4.240.0100.05018.94
5.4.230.0100.06318.99
5.4.220.0070.07318.93
5.4.210.0070.05318.99
5.4.200.0030.05718.90
5.4.190.0070.06019.04
5.4.180.0100.07718.96
5.4.170.0170.05318.99
5.4.160.0100.05319.10
5.4.150.0170.05718.93
5.4.140.0130.06716.63
5.4.130.0100.05016.39
5.4.120.0100.05316.42
5.4.110.0100.05716.52
5.4.100.0130.05016.56
5.4.90.0230.04716.62
5.4.80.0200.06316.51
5.4.70.0170.06016.50
5.4.60.0130.07016.49
5.4.50.0070.05016.59
5.4.40.0070.05316.65
5.4.30.0030.05716.59
5.4.20.0000.07316.30
5.4.10.0000.05716.48
5.4.00.0070.04715.84
5.3.290.0050.04112.80
5.3.280.0170.04314.68
5.3.270.0100.06014.58
5.3.260.0130.06014.69
5.3.250.0170.04714.50
5.3.240.0000.06014.43
5.3.230.0100.05314.81
5.3.220.0030.06014.70
5.3.210.0130.05314.55
5.3.200.0170.06014.65
5.3.190.0070.05314.54
5.3.180.0070.05714.65
5.3.170.0070.07314.55
5.3.160.0030.05714.62
5.3.150.0070.05014.64
5.3.140.0130.04314.69
5.3.130.0100.06314.77
5.3.120.0070.05714.53
5.3.110.0170.04714.77
5.3.100.0200.04014.21
5.3.90.0030.07014.09
5.3.80.0100.04714.19
5.3.70.0170.04313.98
5.3.60.0000.05714.22
5.3.50.0130.06314.03
5.3.40.0070.05314.11
5.3.30.0130.04313.89
5.3.20.0030.05013.70
5.3.10.0030.05313.65
5.3.00.0070.05013.62
5.2.170.0000.05311.11
5.2.160.0130.04011.22
5.2.150.0000.04711.32
5.2.140.0000.05011.11
5.2.130.0070.03711.18
5.2.120.0070.03711.18
5.2.110.0000.04311.19
5.2.100.0100.03711.28
5.2.90.0030.04011.19
5.2.80.0100.04311.31
5.2.70.0030.04311.09
5.2.60.0070.04311.13
5.2.50.0030.05711.00
5.2.40.0070.04711.06
5.2.30.0030.04311.05
5.2.20.0100.04010.94
5.2.10.0070.03711.03
5.2.00.0030.06310.89
5.1.60.0030.03710.19
5.1.50.0030.03710.06
5.1.40.0130.0309.89
5.1.30.0070.04710.49
5.1.20.0000.05710.32
5.1.10.0000.04010.14
5.1.00.0000.04310.02
5.0.50.0030.0308.79
5.0.40.0030.0308.38
5.0.30.0030.0478.22
5.0.20.0000.0308.23
5.0.10.0030.0338.26
5.0.00.0000.0438.24
4.4.90.0000.0236.87
4.4.80.0030.0336.87
4.4.70.0000.0276.87
4.4.60.0000.0336.87
4.4.50.0000.0336.87
4.4.40.0130.0236.87
4.4.30.0030.0206.87
4.4.20.0030.0206.87
4.4.10.0100.0136.87
4.4.00.0030.0336.87
4.3.110.0000.0236.87
4.3.100.0070.0176.87
4.3.90.0000.0236.87
4.3.80.0030.0336.87
4.3.70.0000.0236.87
4.3.60.0030.0206.87
4.3.50.0000.0276.87
4.3.40.0030.0306.87
4.3.30.0000.0236.87
4.3.20.0030.0206.87
4.3.10.0030.0206.87
4.3.00.0170.0176.86

preferences:
51.97 ms | 401 KiB | 5 Q