3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a'=>1,'b'=>2,'c'=>3]; var_dump(array_reduce($a, function($result, $item){ $key = key($result) == 'a' ? 'a' : 'aa'; $result[$key] = $item; return $result; }));

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)
8.3.60.0040.01416.75
8.3.50.0050.01222.05
8.3.40.0070.01119.02
8.3.30.0090.00619.08
8.3.20.0040.00420.24
8.3.10.0080.00023.45
8.3.00.0080.00019.51
8.2.180.0110.00418.28
8.2.170.0090.00622.96
8.2.160.0070.00720.16
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00422.25
8.2.110.0060.00321.02
8.2.100.0060.00617.78
8.2.90.0040.00419.21
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0040.00418.03
8.2.50.0050.00318.07
8.2.40.0080.00019.82
8.2.30.0030.00519.88
8.2.20.0000.00817.69
8.2.10.0000.00718.16
8.2.00.0080.00417.84
8.1.280.0110.00725.92
8.1.270.0070.00723.91
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0090.00021.43
8.1.230.0070.00417.42
8.1.220.0080.00017.78
8.1.210.0000.00918.77
8.1.200.0040.00717.35
8.1.190.0000.00817.36
8.1.180.0030.00618.10
8.1.170.0000.00818.66
8.1.160.0000.00722.07
8.1.150.0040.00418.57
8.1.140.0040.00417.46
8.1.130.0070.00017.75
8.1.120.0070.00017.52
8.1.110.0040.00417.50
8.1.100.0000.00717.52
8.1.90.0000.00717.37
8.1.80.0030.00617.53
8.1.70.0040.00417.34
8.1.60.0040.00417.58
8.1.50.0000.00817.57
8.1.40.0040.00417.51
8.1.30.0000.00817.57
8.1.20.0040.00417.64
8.1.10.0030.00517.57
8.1.00.0000.00817.52
8.0.300.0050.00218.77
8.0.290.0090.00016.63
8.0.280.0040.00418.52
8.0.270.0000.00717.18
8.0.260.0000.00617.16
8.0.250.0000.00816.88
8.0.240.0000.00716.93
8.0.230.0030.00317.00
8.0.220.0030.00316.89
8.0.210.0000.00716.80
8.0.200.0000.00716.98
8.0.190.0030.00617.02
8.0.180.0070.00017.01
8.0.170.0000.00816.96
8.0.160.0040.00416.99
8.0.150.0040.00416.93
8.0.140.0000.00916.81
8.0.130.0000.00513.39
8.0.120.0050.00316.98
8.0.110.0030.00516.93
8.0.100.0040.00416.95
8.0.90.0000.00716.83
8.0.80.0090.00616.91
8.0.70.0080.00016.86
8.0.60.0040.00416.81
8.0.50.0030.00316.95
8.0.30.0130.00616.99
8.0.20.0090.00917.40
8.0.10.0000.00716.99
8.0.00.0080.01216.78
7.4.330.0050.00015.00
7.4.320.0030.00316.64
7.4.300.0000.00616.60
7.4.290.0070.00016.62
7.4.280.0030.00316.60
7.4.270.0040.00416.53
7.4.260.0080.00016.34
7.4.250.0040.00416.48
7.4.240.0050.00216.45
7.4.230.0030.00316.48
7.4.220.0070.01416.44
7.4.210.0020.01116.56
7.4.200.0000.00716.50
7.4.190.0000.00716.70
7.4.160.0120.00616.46
7.4.150.0060.01117.40
7.4.140.0110.00917.86
7.4.130.0100.00616.38
7.4.120.0080.00916.58
7.4.110.0060.01116.58
7.4.100.0090.01316.41
7.4.90.0080.00816.66
7.4.80.0090.00919.39
7.4.70.0060.01016.53
7.4.60.0100.00716.41
7.4.50.0020.00216.44
7.4.40.0160.00016.58
7.4.30.0160.00316.47
7.4.00.0040.01114.77
7.3.330.0060.00013.38
7.3.320.0000.00513.45
7.3.310.0030.00316.32
7.3.300.0040.00416.43
7.3.290.0070.00716.36
7.3.280.0100.00716.39
7.3.270.0070.01017.40
7.3.260.0110.00716.56
7.3.250.0050.01516.44
7.3.240.0120.00416.39
7.3.230.0030.01516.58
7.3.210.0100.00616.64
7.3.200.0140.00316.34
7.3.190.0080.00816.43
7.3.180.0030.01316.52
7.3.170.0040.01616.62
7.3.160.0100.00716.44
7.3.120.0060.00315.03
7.2.330.0230.00016.70
7.2.320.0080.00816.79
7.2.310.0110.01116.48
7.2.300.0090.00616.61
7.2.290.0080.01216.66
7.2.60.0000.01616.86
7.2.00.0070.00719.10
7.1.200.0060.00615.84
7.1.100.0030.01418.22
7.1.70.0000.01116.86
7.1.60.0100.01419.46
7.1.50.0000.01716.61
7.1.00.0000.08022.49
7.0.200.0150.00914.93
7.0.140.0030.07322.09
7.0.60.0070.04320.06
7.0.50.0130.07717.95
7.0.40.0100.08019.96
7.0.30.0330.07720.20
7.0.20.0300.07320.39
7.0.10.0100.08320.06
7.0.00.0130.07720.16
5.6.280.0030.07321.15
5.6.210.0030.08320.61
5.6.200.0070.06318.22
5.6.190.0130.08020.64
5.6.180.0500.07720.53
5.6.170.0230.07720.47
5.6.160.0070.05020.54
5.6.150.0070.07018.28
5.6.140.0170.05318.15
5.6.130.0070.08018.11
5.6.120.0100.08321.00
5.6.110.0070.03721.00
5.6.100.0100.06721.01
5.6.90.0030.04021.00
5.6.80.0000.04320.41
5.5.350.0270.08020.35
5.5.340.0100.07717.95
5.5.330.0000.04320.29
5.5.320.0270.05720.35
5.5.310.0500.07020.34
5.5.300.0170.05717.98
5.5.290.0070.03717.98
5.5.280.0070.04020.65
5.5.270.0070.09020.64
5.5.260.0100.07720.65
5.5.250.0030.04020.58
5.5.240.0030.07720.19
5.4.450.0670.06019.17
5.4.440.0070.07019.19
5.4.430.0100.06719.31
5.4.420.0070.05719.62
5.4.410.0070.06019.00
5.4.400.0100.06318.89
5.4.390.0100.05318.74
5.4.380.0100.05318.74
5.4.370.0370.04318.53
5.4.360.0430.03318.79
5.4.350.0060.04912.02
5.4.340.0070.03412.02
5.4.320.0130.04112.51
5.4.310.0070.04712.50
5.4.300.0050.03712.50
5.4.290.0100.05112.48
5.4.280.0080.04212.38
5.4.270.0090.03612.38
5.4.260.0070.04212.38
5.4.250.0110.04512.38
5.4.240.0070.05012.38
5.4.230.0090.03912.37
5.4.220.0090.03612.37
5.4.210.0080.03912.38
5.4.200.0080.03912.37
5.4.190.0070.04912.37
5.4.180.0160.08812.37
5.4.170.0420.10312.38
5.4.160.0130.06012.38
5.4.150.0090.04212.38
5.4.140.0090.04412.05
5.4.130.0230.15312.04
5.4.120.0090.03912.00
5.4.110.0090.04012.00
5.4.100.0070.04211.99
5.4.90.0120.03812.00
5.4.80.0070.04412.00
5.4.70.0080.03811.99
5.4.60.0080.06511.99
5.4.50.0150.04612.00
5.4.40.0200.07511.98
5.4.30.0220.05111.97
5.4.20.0120.04311.98
5.4.10.0210.05011.98
5.4.00.0180.09211.47
5.3.290.0070.05112.80
5.3.280.0160.04812.71
5.3.270.0140.05012.72
5.3.260.0200.05312.71
5.3.250.0190.06712.71
5.3.240.0110.04212.72
5.3.230.0300.07112.71
5.3.220.0140.05212.68
5.3.210.0120.05712.68
5.3.200.0200.07012.68
5.3.190.0110.04312.67
5.3.180.0110.05512.67
5.3.170.0090.04512.67
5.3.160.0140.07712.67
5.3.150.0120.04912.67
5.3.140.0140.06712.66
5.3.130.0210.07112.66
5.3.120.0170.06212.65
5.3.110.0150.06812.66
5.3.100.0130.06712.12
5.3.90.0110.04912.08
5.3.80.0130.04412.07
5.3.70.0140.05912.08
5.3.60.0080.03812.07
5.3.50.0110.05212.00
5.3.40.0290.05312.00
5.3.30.0120.04711.95
5.3.20.0140.04411.72
5.3.10.0120.08311.70
5.3.00.0100.05611.68
5.2.170.0090.0429.18
5.2.160.0110.0459.18
5.2.150.0080.0459.18
5.2.140.0070.0299.18
5.2.130.0080.0349.14
5.2.120.0070.0399.14
5.2.110.0060.0349.14
5.2.100.0130.0359.14
5.2.90.0090.0389.14
5.2.80.0070.0289.14
5.2.70.0110.0349.14
5.2.60.0070.0449.08
5.2.50.0090.0439.06
5.2.40.0070.0329.04
5.2.30.0060.0339.02
5.2.20.0040.0349.00
5.2.10.0110.0368.93
5.2.00.0110.0348.78
5.1.60.0060.0278.07
5.1.50.0080.0388.06
5.1.40.0050.0418.04
5.1.30.0090.0308.40
5.1.20.0090.0288.42
5.1.10.0040.0408.14
5.1.00.0090.0538.14
5.0.50.0040.0236.63
5.0.40.0040.0206.48
5.0.30.0030.0336.29
5.0.20.0030.0306.26
5.0.10.0030.0326.23
5.0.00.0040.0336.23
4.4.90.0050.0164.77
4.4.80.0030.0244.75
4.4.70.0010.0264.75
4.4.60.0050.0224.75
4.4.50.0030.0254.77
4.4.40.0040.0414.71
4.4.30.0050.0264.76
4.4.20.0030.0244.84
4.4.10.0030.0284.85
4.4.00.0090.0704.76
4.3.110.0040.0304.66
4.3.100.0040.0224.66
4.3.90.0040.0234.63
4.3.80.0070.0314.59
4.3.70.0040.0224.63
4.3.60.0060.0204.63
4.3.50.0270.0204.63
4.3.40.0240.0864.54
4.3.30.0060.0423.29
4.3.20.0020.0293.26
4.3.10.0040.0213.22
4.3.00.0100.0237.12

preferences:
52.12 ms | 401 KiB | 5 Q