3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class x { function test($z, x $x) { var_dump($x); } } class y extends x { function test($z, $x = null) { parent::test($x, $x); } } (new y)->test(null);

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)
8.3.60.0090.00918.68
8.3.50.0260.01021.02
8.3.40.0040.01118.79
8.3.30.0110.00418.54
8.3.20.0030.01020.21
8.3.10.0050.00221.65
8.3.00.0080.00019.80
8.2.180.0070.01118.66
8.2.170.0120.00322.96
8.2.160.0120.00420.45
8.2.150.0050.00324.18
8.2.140.0070.01124.66
8.2.130.0080.00026.16
8.2.120.0090.00317.50
8.2.110.0100.00020.57
8.2.100.0040.00817.75
8.2.90.0040.00419.05
8.2.80.0030.00517.97
8.2.70.0040.00417.63
8.2.60.0080.00018.04
8.2.50.0040.00418.07
8.2.40.0050.00219.38
8.2.30.0030.00320.63
8.2.20.0040.00417.77
8.2.10.0000.00817.91
8.2.00.0070.00018.04
8.1.280.0040.01125.92
8.1.270.0120.00623.96
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.86
8.1.230.0110.00017.42
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.13
8.1.190.0000.00817.00
8.1.180.0080.00018.10
8.1.170.0000.00818.58
8.1.160.0050.00221.88
8.1.150.0040.00418.66
8.1.140.0040.00417.43
8.1.130.0030.00617.57
8.1.120.0000.00817.23
8.1.110.0030.00517.26
8.1.100.0000.00717.23
8.1.90.0000.00717.33
8.1.80.0050.00317.32
8.1.70.0000.00717.28
8.1.60.0000.00817.55
8.1.50.0060.00617.44
8.1.40.0040.00417.35
8.1.30.0040.00417.59
8.1.20.0040.00417.48
8.1.10.0030.00617.45
8.1.00.0020.00517.45
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00718.37
8.0.270.0000.00717.20
8.0.260.0030.00317.11
8.0.250.0070.00016.99
8.0.240.0040.00416.96
8.0.230.0040.00416.97
8.0.220.0030.00616.79
8.0.210.0040.00416.77
8.0.200.0000.00616.84
8.0.190.0070.00316.95
8.0.180.0040.00416.95
8.0.170.0020.00516.82
8.0.160.0050.00216.80
8.0.150.0000.00716.80
8.0.140.0040.00816.75
8.0.130.0030.00313.36
8.0.120.0040.00416.83
8.0.110.0040.00416.88
8.0.100.0040.00416.91
8.0.90.0070.00016.89
8.0.80.0030.01216.95
8.0.70.0050.00316.88
8.0.60.0040.00416.99
8.0.50.0000.00716.77
8.0.30.0110.00716.99
8.0.20.0120.00717.40
8.0.10.0080.00016.84
8.0.00.0090.01016.80
7.4.330.0060.00015.08
7.4.320.0000.00716.45
7.4.300.0050.00316.60
7.4.290.0060.00316.57
7.4.280.0040.00416.59
7.4.270.0000.00616.45
7.4.260.0000.00716.46
7.4.250.0040.00416.45
7.4.240.0030.00416.57
7.4.230.0030.00316.46
7.4.220.0120.00616.37
7.4.210.0120.00316.42
7.4.200.0030.00616.53
7.4.160.0090.01216.26
7.4.150.0090.00917.40
7.4.140.0120.01117.86
7.4.130.0070.01016.64
7.4.120.0120.00716.43
7.4.110.0070.01116.71
7.4.100.0120.00616.31
7.4.90.0090.00916.48
7.4.80.0080.00819.39
7.4.70.0060.01216.29
7.4.60.0060.01016.44
7.4.50.0040.00416.38
7.4.40.0060.01216.63
7.4.30.0060.01516.41
7.4.00.0070.01214.87
7.3.330.0000.00613.27
7.3.320.0000.00613.39
7.3.310.0000.00716.36
7.3.300.0020.00516.28
7.3.290.0080.00616.34
7.3.280.0130.00716.33
7.3.270.0170.00017.40
7.3.260.0140.01016.57
7.3.250.0100.00916.38
7.3.240.0100.00716.38
7.3.230.0110.01116.57
7.3.210.0130.00316.24
7.3.200.0170.00016.45
7.3.190.0100.00616.24
7.3.180.0110.00716.30
7.3.170.0090.00616.29
7.3.160.0090.00916.56
7.3.120.0070.01014.98
7.3.110.0100.00714.89
7.3.100.0080.00814.97
7.3.90.0090.00314.70
7.3.80.0070.00714.94
7.3.70.0000.01614.88
7.3.60.0030.01014.70
7.3.50.0000.00914.94
7.3.40.0000.01314.50
7.3.30.0000.01114.65
7.3.20.0060.00316.60
7.3.10.0100.00316.69
7.3.00.0100.00316.32
7.2.330.0100.00716.27
7.2.320.0110.00616.50
7.2.310.0040.01216.52
7.2.300.0070.01016.67
7.2.290.0150.00416.38
7.2.250.0060.01314.67
7.2.240.0030.01515.00
7.2.230.0030.00615.02
7.2.220.0070.00314.91
7.2.210.0140.00014.48
7.2.200.0080.00414.83
7.2.190.0070.00714.63
7.2.180.0030.01014.91
7.2.170.0000.01714.96
7.2.60.0090.00316.75
7.2.00.0060.00819.18
7.1.330.0000.01415.71
7.1.320.0070.00715.56
7.1.310.0100.00315.43
7.1.300.0060.00615.70
7.1.290.0070.00715.70
7.1.280.0070.00315.75
7.1.270.0030.01015.67
7.1.260.0030.01015.73
7.1.200.0120.00315.33
7.1.100.0070.00717.98
7.1.70.0000.01417.09
7.1.60.0140.01019.19
7.1.50.0110.01116.93
7.1.00.0100.07022.33
7.0.200.0000.00816.67
7.0.60.0330.07719.95
7.0.50.0030.04317.89
7.0.40.0000.04720.09
7.0.30.0230.05020.25
7.0.20.0300.08020.18
7.0.10.0070.07320.15
7.0.00.0070.07320.16
5.6.280.0030.07320.92
5.6.210.0070.08020.51
5.6.200.0070.07018.20
5.6.190.0000.09020.68
5.6.180.0270.04020.41
5.6.170.0200.03720.59
5.6.160.0070.06020.52
5.6.150.0070.04018.14
5.6.140.0170.06718.15
5.6.130.0130.05018.19
5.6.120.0100.08320.91
5.6.110.0070.04021.12
5.6.100.0030.07321.13
5.6.90.0100.08021.14
5.6.80.0170.07320.40
5.5.350.0230.05720.47
5.5.340.0130.08018.02
5.5.330.0070.04320.28
5.5.320.0670.04720.39
5.5.310.0330.05320.35
5.5.300.0030.08318.08
5.5.290.0200.07018.08
5.5.280.0030.08320.76
5.5.270.0100.08020.77
5.5.260.0070.04320.77
5.5.250.0170.08320.69
5.5.240.0100.07320.29
5.4.450.3830.04019.26
5.4.440.0070.05319.57
5.4.430.2100.03719.54
5.4.420.3900.04019.51
5.4.410.4230.02319.37
5.4.400.3600.04019.13
5.4.390.3470.03719.21
5.4.380.3100.04319.16
5.4.370.3200.04019.13
5.4.360.3730.04018.97
5.4.350.3830.04019.21
5.4.340.3870.03319.18
5.4.320.4130.03719.22
5.4.310.3570.03719.17
5.4.300.3830.03319.24
5.4.290.4270.04719.13
5.4.280.4600.03319.12
5.4.270.4830.04019.23
5.4.260.4570.03719.06
5.4.250.4600.03018.93
5.4.240.4600.03719.00
5.4.230.3800.03319.05
5.4.220.3630.03718.96
5.4.210.3870.04319.12
5.4.200.5430.03319.05
5.4.190.4000.03718.92
5.4.180.3900.02719.20
5.4.170.4000.04019.05
5.4.160.4100.03719.02
5.4.150.4030.04319.11
5.4.140.4400.03716.56
5.4.130.4300.04016.54
5.4.120.3500.03316.40
5.4.110.4030.03316.53
5.4.100.4070.03716.50
5.4.90.3970.03716.50
5.4.80.3870.04016.39

preferences:
62.69 ms | 401 KiB | 5 Q