3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo {} $foo = new Foo(); $weakMap = new WeakMap(); $weakMap[$foo] = $foo; unset($foo); foreach ($weakMap as $prop => $value) { var_dump($prop, $value); }

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)
8.5.10.0100.00819.55
8.5.00.0090.01022.82
8.4.150.0020.00014.05
8.4.140.0140.00717.69
8.4.130.0050.00318.63
8.4.120.0060.00824.06
8.4.110.0100.01118.83
8.4.100.0100.01018.89
8.4.90.0120.00820.47
8.4.80.0110.00918.95
8.4.70.0090.00617.91
8.4.60.0050.01019.08
8.4.50.0030.00620.39
8.4.40.0120.00620.52
8.4.30.0140.00722.28
8.4.20.0100.01018.06
8.4.10.0130.00723.80
8.3.280.0130.00818.27
8.3.270.0110.01016.81
8.3.260.0080.00116.71
8.3.250.0090.00918.75
8.3.240.0120.00716.98
8.3.230.0130.00716.50
8.3.220.0130.00618.93
8.3.210.0100.00616.80
8.3.200.0090.00916.63
8.3.190.0110.00717.04
8.3.180.0100.00817.36
8.3.170.0090.00919.02
8.3.160.0070.01118.11
8.3.150.0110.00717.29
8.3.140.0050.00316.49
8.3.130.0110.00018.22
8.3.120.0120.00620.84
8.3.110.0070.00718.43
8.3.100.0030.00624.06
8.3.90.0040.00426.77
8.3.80.0060.00318.56
8.3.70.0120.00316.58
8.3.60.0150.00616.50
8.3.50.0030.01316.53
8.3.40.0000.01520.47
8.3.30.0070.00720.93
8.3.20.0070.00024.18
8.3.10.0000.00724.66
8.3.00.0080.00026.16
8.2.290.0130.00520.32
8.2.280.0110.00818.64
8.2.270.0140.00417.41
8.2.260.0120.00616.61
8.2.250.0060.00316.75
8.2.240.0090.00017.26
8.2.230.0070.00020.94
8.2.220.0000.00937.54
8.2.210.0090.00026.77
8.2.200.0030.00616.50
8.2.190.0120.00916.58
8.2.180.0070.01125.92
8.2.170.0150.00418.86
8.2.160.0090.00922.96
8.2.150.0040.00425.66
8.2.140.0030.00524.66
8.2.130.0050.00226.16
8.2.120.0050.00317.50
8.2.110.0030.00620.52
8.2.100.0060.00617.72
8.2.90.0040.00417.63
8.2.80.0000.00918.77
8.2.70.0050.00317.63
8.2.60.0120.00617.38
8.2.50.0140.00517.37
8.2.40.0150.00317.38
8.2.30.0140.00317.38
8.2.20.0130.00517.50
8.2.10.0150.00317.47
8.2.00.0070.01117.50
8.1.330.0120.00621.86
8.1.320.0080.01417.91
8.1.310.0070.00416.14
8.1.300.0050.00320.19
8.1.290.0080.00330.84
8.1.280.0150.00025.92
8.1.270.0080.00024.66
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0110.00322.13
8.1.230.0090.00320.95
8.1.220.0080.00018.62
8.1.210.0040.00418.77
8.1.200.0060.00317.48
8.1.190.0130.00416.88
8.1.180.0100.00717.11
8.1.170.0100.00617.13
8.1.160.0120.00417.13
8.1.150.0100.00717.23
8.1.140.0140.00217.13
8.1.130.0120.00517.13
8.1.120.0100.01017.13
8.1.110.0110.00717.13
8.1.100.0110.00517.13
8.1.90.0160.00017.35
8.1.80.0170.00017.25
8.1.70.0000.01617.00
8.1.60.0130.00417.38
8.1.50.0140.00317.13
8.1.40.0090.00917.22
8.1.30.0180.00017.50
8.1.20.0110.00717.38
8.1.10.0140.00317.38
8.1.00.0140.00417.46
8.0.300.0030.00518.77
8.0.290.0040.00416.75
8.0.280.0090.00616.73
8.0.270.0130.00316.52
8.0.260.0100.00516.52
8.0.250.0060.00916.52
8.0.240.0080.00816.63
8.0.230.0160.00016.52
8.0.220.0160.00216.52
8.0.210.0140.00316.63
8.0.200.0150.00416.61
8.0.190.0130.00316.52
8.0.180.0130.00316.52
8.0.170.0160.00016.52
8.0.160.0080.00816.60
8.0.150.0100.00716.52
8.0.140.0140.00516.52
8.0.130.0080.00816.52
8.0.120.0160.00016.52
8.0.110.0110.00716.63
8.0.100.0090.00716.63
8.0.90.0110.00616.52
8.0.80.0080.00816.52
8.0.70.0130.00316.52
8.0.60.0090.00416.93
8.0.50.0120.00316.52
8.0.30.0130.00316.63
8.0.20.0160.00016.52
8.0.10.0100.00516.63

preferences:
101.99 ms | 403 KiB | 5 Q