3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [2015 => '2015'], [2016 => '2016'], [2017 => '2017'], [2018 => '2018'], [2019 => '2019'], [2020 => '2020'], [2021 => '2021'], [2022 => '2022'], [2023 => '2023'] ]; var_export(array_merge(...$array));

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)
8.4.140.0130.00917.24
8.4.130.0040.00419.63
8.4.120.0030.01020.52
8.4.110.0060.00324.19
8.4.100.0090.00917.65
8.4.90.0100.00117.52
8.4.80.0150.00517.67
8.4.70.0130.00817.71
8.4.60.0150.00717.56
8.4.50.0100.00819.36
8.4.40.0060.00317.47
8.4.30.0150.00418.60
8.4.20.0130.00725.93
8.4.10.0060.00323.57
8.3.270.0130.00616.42
8.3.260.0130.00416.63
8.3.250.0120.00618.64
8.3.240.0120.00716.38
8.3.230.0040.00416.57
8.3.220.0080.00817.01
8.3.210.0060.00616.44
8.3.200.0100.00918.59
8.3.190.0090.00716.38
8.3.180.0060.01216.64
8.3.170.0120.00618.93
8.3.160.0140.00416.60
8.3.150.0120.00920.44
8.3.140.0030.00618.85
8.3.130.0060.00318.30
8.3.120.0160.00318.67
8.3.110.0090.01216.38
8.3.100.0090.00624.06
8.3.90.0060.00926.77
8.3.80.0030.00617.97
8.3.70.0000.01518.30
8.3.60.0090.00616.75
8.3.50.0180.00416.34
8.3.40.0100.01020.04
8.3.30.0110.00318.54
8.3.20.0000.00724.18
8.3.10.0040.00424.66
8.3.00.0060.00326.16
8.2.290.0070.00320.32
8.2.280.0090.00216.66
8.2.270.0070.01017.03
8.2.260.0040.00418.14
8.2.250.0090.00016.67
8.2.240.0090.00018.94
8.2.230.0050.00320.94
8.2.220.0030.00537.54
8.2.210.0140.00426.77
8.2.200.0000.00918.42
8.2.190.0150.00416.58
8.2.180.0070.01116.38
8.2.170.0090.00918.75
8.2.160.0130.00722.96
8.2.150.0080.00025.66
8.2.140.0080.00024.66
8.2.130.0000.01326.16
8.2.120.0060.00326.16
8.2.110.0040.00822.16
8.2.100.0030.00917.79
8.2.90.0030.00519.10
8.2.80.0040.00417.97
8.2.70.0090.00017.25
8.2.60.0030.00617.90
8.2.50.0090.00018.07
8.2.40.0080.00019.89
8.2.30.0050.00317.93
8.2.20.0030.00319.16
8.2.10.0120.00617.57
8.2.00.0140.00417.67
8.1.330.0120.00616.82
8.1.320.0100.01115.96
8.1.310.0100.00016.38
8.1.300.0000.00920.24
8.1.290.0050.00530.84
8.1.280.0070.01425.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0040.00423.96
8.1.230.0070.00317.52
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0050.00317.23
8.1.180.0000.00818.10
8.1.170.0050.00219.02
8.1.160.0000.00818.91
8.1.150.0000.00718.46
8.1.140.0110.00817.29
8.1.130.0090.00917.42
8.1.120.0150.00417.36
8.1.110.0120.00517.44
8.1.100.0190.00017.56
8.1.90.0050.01117.36
8.1.80.0120.00517.44
8.1.70.0120.00817.40
8.1.60.0170.00317.54
8.1.50.0200.00017.40
8.1.40.0160.00317.47
8.1.30.0140.00217.50
8.1.20.0180.00017.50
8.1.10.0100.01017.33
8.1.00.0200.00017.44
8.0.300.0000.00818.77
8.0.290.0070.00016.63
8.0.280.0040.00418.42
8.0.270.0080.00816.72
8.0.260.0090.00616.66
8.0.250.0090.00516.83
8.0.240.0070.00716.73
8.0.230.0110.00816.84
8.0.220.0110.00516.82
8.0.210.0160.00016.78
8.0.200.0120.00316.79
8.0.190.0040.00916.70
8.0.180.0120.00316.80
8.0.170.0040.00916.70
8.0.160.0140.00016.83
8.0.150.0130.00016.68
8.0.140.0060.01016.61
8.0.130.0070.00716.60
8.0.120.0080.00816.79
8.0.110.0180.00016.63
8.0.100.0090.00416.62
8.0.90.0120.00316.66
8.0.80.0110.00516.70
8.0.70.0120.00616.74
8.0.60.0170.00016.76
8.0.50.0160.00316.72
8.0.30.0050.01116.73
8.0.20.0100.00516.74
8.0.10.0120.00416.74

preferences:
73.12 ms | 403 KiB | 5 Q