3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A {public ?string $r = '';} class B extends A {public ?string $r;} //(new B)->r;

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)
8.3.60.0200.00318.18
8.3.50.0140.00720.34
8.3.40.0100.00319.68
8.3.30.0070.00718.39
8.3.20.0050.00324.18
8.3.10.0000.00724.66
8.3.00.0040.00426.16
8.2.180.0110.01125.92
8.2.170.0040.01118.57
8.2.160.0100.01022.96
8.2.150.0070.00025.66
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0040.00426.16
8.2.110.0030.00621.09
8.2.100.0110.00017.72
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0030.00517.50
8.2.60.0060.00317.66
8.2.50.0050.00218.10
8.2.40.0040.00418.10
8.2.30.0040.00417.98
8.2.20.0040.00419.03
8.2.10.0000.00718.02
8.2.00.0070.00019.03
8.1.280.0120.00325.92
8.1.270.0070.00024.66
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.98
8.1.230.0040.00817.42
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0000.01017.10
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0030.00618.91
8.1.160.0040.00418.91
8.1.150.0000.00718.42
8.1.140.0040.00417.36
8.1.130.0070.00018.94
8.1.120.0000.00717.18
8.1.110.0080.00017.35
8.1.100.0000.00717.31
8.1.90.0050.00517.20
8.1.80.0130.00317.20
8.1.70.0130.00317.23
8.1.60.0160.00217.32
8.1.50.0110.00717.34
8.1.40.0170.00017.29
8.1.30.0090.00917.45
8.1.20.0140.00317.38
8.1.10.0120.00617.22
8.1.00.0150.00417.30
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0030.00318.19
8.0.270.0000.00716.69
8.0.260.0040.00418.30
8.0.250.0030.00316.83
8.0.240.0000.00716.70
8.0.230.0050.00316.69
8.0.220.0070.00416.62
8.0.210.0100.00516.57
8.0.200.0050.01016.79
8.0.190.0040.01116.75
8.0.180.0150.00016.66
8.0.170.0070.00716.81
8.0.160.0080.00816.59
8.0.150.0100.00616.69
8.0.140.0110.00516.55
8.0.130.0150.00016.65
8.0.120.0120.00216.63
8.0.110.0070.00716.77
8.0.100.0150.00016.76
8.0.90.0110.00316.75
8.0.80.0120.00416.80
8.0.70.0120.00616.62
8.0.60.0090.00616.53
8.0.50.0090.00416.73
8.0.30.0060.00616.70
8.0.20.0110.00516.63
8.0.10.0160.00016.82
7.4.330.0000.00615.55
7.4.320.0000.00616.44
7.4.300.0130.00316.36
7.4.290.0120.00716.45
7.4.280.0060.00916.38
7.4.270.0120.00416.32
7.4.260.0100.00616.18
7.4.250.0130.00316.26
7.4.240.0080.00416.50
7.4.230.0000.01516.48
7.4.220.0090.00616.37
7.4.210.0150.00016.46
7.4.200.0100.00416.36
7.4.190.0100.00516.40
7.4.180.0110.00416.55
7.4.160.0070.00716.41
7.4.150.0090.00316.37
7.4.140.0090.00316.21
7.4.130.0060.00916.34
7.4.120.0140.00016.16
7.4.110.0070.00716.27
7.4.100.0090.00516.21
7.4.90.0080.00816.27
7.4.80.0130.00216.32
7.4.70.0110.00416.26
7.4.60.0120.00316.29
7.4.50.0080.00616.01
7.4.40.0140.00016.27
7.4.30.0100.00016.24
7.4.20.0140.00016.12
7.4.10.0030.01216.10
7.4.00.0110.00416.21

preferences:
55.06 ms | 401 KiB | 5 Q