3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B { protected $c = 1; } class C1 extends B { function f(B $x) { return $x->c; } } class C2 extends B { protected $c = 2; } var_dump((new C1)->f(new C2));

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)
8.4.140.0160.00417.56
8.4.130.0110.00717.53
8.4.120.0070.01220.44
8.4.110.0340.00917.88
8.4.100.0410.00817.85
8.4.90.0430.00717.59
8.4.80.0390.01117.95
8.4.70.0440.00617.75
8.4.60.0430.00717.89
8.4.50.0440.00717.79
8.4.40.0440.00917.13
8.4.30.0470.00617.48
8.4.20.0450.00817.59
8.4.10.0240.00217.63
8.3.270.0120.00716.72
8.3.260.0110.00816.36
8.3.250.0030.00618.95
8.3.240.0280.00616.96
8.3.230.0270.00616.32
8.3.220.0410.00616.28
8.3.210.0420.00716.67
8.3.200.0390.00316.47
8.3.190.0250.01016.57
8.3.180.0410.00616.43
8.3.170.0430.00716.63
8.3.160.0310.00416.48
8.3.150.0450.00616.27
8.3.140.0340.01216.66
8.3.130.0170.00416.70
8.3.120.0150.00616.61
8.3.110.0220.00516.58
8.3.100.0190.00416.64
8.3.90.0210.00216.77
8.3.80.0190.00416.55
8.3.70.0230.00616.48
8.3.60.0410.00916.71
8.3.50.0190.00616.71
8.3.40.0150.00517.36
8.3.30.0150.00417.54
8.3.20.0230.00817.33
8.3.10.0160.00517.56
8.3.00.0350.01117.41
8.2.290.0470.00316.53
8.2.280.0270.00816.80
8.2.270.0290.01016.68
8.2.260.0370.00516.82
8.2.250.0270.00516.65
8.2.240.0230.00716.02
8.2.230.0230.00816.54
8.2.220.0150.00516.88
8.2.210.0150.00416.37
8.2.200.0190.00616.64
8.2.190.0160.00316.45
8.2.180.0160.00316.47
8.2.170.0140.00617.86
8.2.160.0150.00517.71
8.2.150.0370.00517.39
8.2.140.0350.00717.49
8.2.130.0280.00317.51
8.2.120.0240.00717.69
8.2.110.0410.00517.50
8.2.100.0350.00917.47
8.2.90.0340.01117.45
8.2.80.0360.00817.56
8.2.70.0220.00817.52
8.2.60.0170.00517.54
8.2.50.0350.00817.61
8.2.40.0220.00717.55
8.2.30.0380.00717.39
8.2.20.0350.00617.58
8.2.10.0330.00717.29
8.2.00.0460.00917.63

preferences:
26.35 ms | 403 KiB | 5 Q