3v4l.org

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

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)
8.3.60.0120.00318.31
8.3.50.0180.00320.23
8.3.40.0070.00719.61
8.3.30.0030.01218.39
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0060.00326.16
8.2.180.0110.00425.92
8.2.170.0090.00618.84
8.2.160.0110.00422.96
8.2.150.0040.00425.66
8.2.140.0070.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00026.16
8.2.110.0000.00820.53
8.2.100.0100.00017.66
8.2.90.0000.00817.63
8.2.80.0030.00518.70
8.2.70.0000.00917.50
8.2.60.0000.00717.50
8.2.50.0080.00018.04
8.2.40.0000.00818.11
8.2.30.0060.00317.92
8.2.20.0070.00019.12
8.2.10.0000.00717.85
8.2.00.0040.00418.98
8.1.280.0180.00025.92
8.1.270.0040.00424.66
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00623.73
8.1.230.0070.00321.02
8.1.220.0000.00718.43
8.1.210.0050.00318.77
8.1.200.0000.00817.22
8.1.190.0060.00316.88
8.1.180.0000.00818.10
8.1.170.0050.00317.62
8.1.160.0000.01018.82
8.1.150.0040.00418.41
8.1.140.0000.00717.22
8.1.130.0030.00318.97
8.1.120.0000.00717.32
8.1.110.0000.00817.30
8.1.100.0040.00417.20
8.1.90.0000.00917.21
8.1.80.0140.00317.21
8.1.70.0110.00517.20
8.1.60.0180.00017.44
8.1.50.0150.00317.26
8.1.40.0140.00317.25
8.1.30.0170.00017.42
8.1.20.0130.00417.47
8.1.10.0130.00517.47
8.1.00.0190.00017.34
8.0.300.0040.00418.77
8.0.290.0000.00916.63
8.0.280.0000.00718.38
8.0.270.0000.00716.75
8.0.260.0000.00618.37
8.0.250.0030.00316.91
8.0.240.0030.00316.85
8.0.230.0040.00416.72
8.0.220.0040.00416.74
8.0.210.0110.00416.70
8.0.200.0090.00616.75
8.0.190.0140.00016.75
8.0.180.0090.00616.72
8.0.170.0140.00516.64
8.0.160.0110.00416.59
8.0.150.0110.00416.75
8.0.140.0120.00316.63
8.0.130.0050.01016.58
8.0.120.0140.00016.71
8.0.110.0070.00716.76
8.0.100.0070.00716.68
8.0.90.0030.01016.70
8.0.80.0100.00516.61
8.0.70.0110.00416.64
8.0.60.0120.00316.60
8.0.50.0000.01216.73
8.0.30.0070.00716.75
8.0.20.0160.00016.73
8.0.10.0130.00316.87
7.4.330.0030.00316.83
7.4.320.0000.00716.44
7.4.300.0070.01116.36
7.4.290.0100.00816.35
7.4.280.0150.00016.28
7.4.270.0080.00516.35
7.4.260.0130.00416.31
7.4.250.0130.00316.27
7.4.240.0060.00616.33
7.4.230.0100.00516.45
7.4.220.0160.00016.30
7.4.210.0090.00616.43
7.4.200.0140.00016.33
7.4.190.0060.00916.39
7.4.180.0100.00516.43
7.4.160.0000.01316.56
7.4.150.0090.00316.29
7.4.140.0000.01316.22
7.4.130.0120.00316.24
7.4.120.0090.00616.17
7.4.110.0140.00016.11
7.4.100.0110.00416.39
7.4.90.0130.00316.32
7.4.80.0110.00416.34
7.4.70.0110.00416.38
7.4.60.0110.00416.30
7.4.50.0030.01116.19
7.4.40.0110.00416.16
7.4.30.0080.00316.16
7.4.20.0140.00016.26
7.4.10.0110.00416.06
7.4.00.0070.00716.29

preferences:
53.81 ms | 400 KiB | 5 Q