3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=[1=>['a','b'],2=>'c']; var_dump(array_keys($a));

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)
8.3.60.0070.00716.75
8.3.50.0130.00721.94
8.3.40.0130.00718.59
8.3.30.0070.00719.02
8.3.20.0040.00420.21
8.3.10.0000.00823.57
8.3.00.0000.01019.25
8.2.180.0090.01216.50
8.2.170.0140.00022.96
8.2.160.0180.00320.57
8.2.150.0110.00724.18
8.2.140.0050.00324.66
8.2.130.0090.00626.16
8.2.120.0030.00522.14
8.2.110.0060.00322.26
8.2.100.0080.00417.72
8.2.90.0040.00419.09
8.2.80.0000.00717.97
8.2.70.0060.00317.50
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0080.00019.76
8.2.30.0050.00219.70
8.2.20.0000.00817.68
8.2.10.0000.00718.04
8.2.00.0030.00617.65
8.1.280.0180.00325.92
8.1.270.0040.00423.83
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0080.00023.96
8.1.230.0110.00019.10
8.1.220.0070.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0050.00217.40
8.1.180.0000.01118.10
8.1.170.0040.00418.51
8.1.160.0050.00521.83
8.1.150.0080.00018.54
8.1.140.0070.00017.25
8.1.130.0000.00717.73
8.1.120.0040.00417.39
8.1.110.0040.00417.42
8.1.100.0000.00717.36
8.1.90.0070.00017.27
8.1.80.0050.00317.36
8.1.70.0070.00017.28
8.1.60.0040.00417.47
8.1.50.0000.00817.32
8.1.40.0040.00417.45
8.1.30.0000.00917.50
8.1.20.0040.00417.61
8.1.10.0000.00817.46
8.1.00.0080.00017.41
8.0.300.0070.00019.09
8.0.290.0040.00417.05
8.0.280.0030.00318.28
8.0.270.0070.00017.23
8.0.260.0030.00317.06
8.0.250.0030.00316.95
8.0.240.0050.00316.89
8.0.230.0000.01016.84
8.0.220.0000.00716.83
8.0.210.0030.00316.84
8.0.200.0030.00316.86
8.0.190.0040.00416.78
8.0.180.0000.00716.88
8.0.170.0000.00716.70
8.0.160.0040.00316.94
8.0.150.0070.00016.79
8.0.140.0000.01016.72
8.0.130.0000.00613.28
8.0.120.0050.00316.77
8.0.110.0000.00816.87
8.0.100.0070.00016.79
8.0.90.0040.00316.74
8.0.80.0060.01316.75
8.0.70.0000.00716.80
8.0.60.0070.00016.73
8.0.50.0040.00416.88
8.0.30.0120.00817.00
8.0.20.0060.01317.40
8.0.10.0000.00716.89
8.0.00.0110.00616.71
7.4.330.0000.00515.00
7.4.320.0030.00316.52
7.4.300.0060.00016.37
7.4.290.0030.00316.43
7.4.280.0080.00016.36
7.4.270.0000.00816.45
7.4.260.0000.00616.48
7.4.250.0040.00416.40
7.4.240.0020.00516.41
7.4.230.0030.00316.42
7.4.220.0070.01016.44
7.4.210.0040.01216.41
7.4.200.0070.00016.51
7.4.190.0070.00016.65
7.4.160.0090.00616.52
7.4.150.0140.00417.40
7.4.140.0080.00817.86
7.4.130.0050.01116.46
7.4.120.0030.01316.42
7.4.110.0120.00916.42
7.4.100.0150.00616.37
7.4.90.0170.00016.35
7.4.80.0110.00619.39
7.4.70.0070.00916.52
7.4.60.0040.01216.39
7.4.50.0000.00416.34
7.4.40.0030.01422.77
7.4.30.0090.00616.24
7.4.00.0050.01014.62
7.3.330.0020.00213.00
7.3.320.0060.00013.13
7.3.310.0040.00415.98
7.3.300.0060.00016.14
7.3.290.0060.01316.15
7.3.280.0110.01016.12
7.3.270.0140.00417.40
7.3.260.0080.01516.09
7.3.250.0170.00416.03
7.3.240.0110.00616.50
7.3.230.0070.01016.39
7.3.210.0130.00716.27
7.3.200.0050.01819.39
7.3.190.0070.01416.25
7.3.180.0040.01116.48
7.3.170.0120.00316.27
7.3.160.0160.00616.42
7.3.120.0030.01014.54
7.3.110.0040.01114.74
7.3.100.0090.00914.59
7.3.90.0060.00914.70
7.3.80.0040.01115.05
7.3.70.0000.01614.52
7.3.60.0090.00314.82
7.3.50.0040.01114.68
7.3.40.0120.00614.66
7.3.30.0080.00614.78
7.3.20.0110.00416.54
7.3.10.0090.00616.31
7.3.00.0090.00616.67
7.2.330.0110.00816.31
7.2.320.0120.00616.46
7.2.310.0170.00716.58
7.2.300.0160.00716.34
7.2.290.0130.01016.49
7.2.250.0070.01314.69
7.2.240.0100.00714.75
7.2.230.0070.01115.00
7.2.220.0090.00614.73
7.2.210.0030.01014.86
7.2.200.0030.01314.66
7.2.190.0030.01314.87
7.2.180.0070.00714.82
7.2.170.0070.01014.64
7.1.330.0040.01215.79
7.1.320.0000.01715.63
7.1.310.0090.00615.73
7.1.300.0000.01415.68
7.1.290.0090.00315.93
7.1.280.0120.00415.91
7.1.270.0070.00715.69
7.1.260.0070.00715.71
7.1.70.0120.00316.91
7.1.60.0140.01019.46
7.1.50.0100.01016.73
7.1.00.0000.07722.40
7.0.200.0000.00816.70
7.0.140.0030.07022.00
7.0.60.0030.04319.96
7.0.50.0100.04317.89
7.0.40.0130.04720.04
7.0.30.0430.03720.18
7.0.20.0270.04020.12
7.0.10.0030.05720.13
7.0.00.0030.05020.14
5.6.280.0000.07720.92
5.6.210.0030.04020.64
5.6.200.0100.07318.18
5.6.190.0200.06720.77
5.6.180.0200.04320.67
5.6.170.0170.04320.50
5.6.160.0130.07720.37
5.6.150.0070.08318.13
5.6.140.0100.08318.11
5.6.130.0030.08318.12
5.6.120.0070.04720.82
5.6.110.0030.04021.01
5.6.100.0030.09320.96
5.6.90.0100.06020.99
5.6.80.0130.06720.52
5.5.350.0200.06020.40
5.5.340.0030.05717.88
5.5.330.0070.04020.43
5.5.320.0370.07320.32
5.5.310.0300.06020.10
5.5.300.0070.08317.98
5.5.290.0030.07717.93
5.5.280.0100.08320.76
5.5.270.0030.07720.71
5.5.260.0030.08320.82
5.5.250.0030.07020.58
5.5.240.4130.04320.18
5.4.450.0730.04319.46
5.4.440.1270.03319.10
5.4.430.0600.05019.20
5.4.420.0530.04019.42
5.4.410.0070.03719.35
5.4.400.0800.03018.81
5.4.390.0430.04319.10
5.4.380.0400.05018.61
5.4.370.0470.05018.49
5.4.360.0300.05318.57
5.4.350.0270.05318.59
5.4.340.0500.04718.73
5.4.320.0070.03412.45
5.4.310.0070.04212.45
5.4.300.0070.03512.45
5.4.290.0060.04512.43
5.4.280.0070.03712.33
5.4.270.0060.03612.33
5.4.260.0050.04912.33
5.4.250.0160.07212.33
5.4.240.0120.05912.33
5.4.230.0110.05712.32
5.4.220.0110.03712.32
5.4.210.0100.04112.32
5.4.200.0050.04112.32
5.4.190.0060.03912.32
5.4.180.0080.04312.32
5.4.170.0090.04512.33
5.4.160.0070.04612.32
5.4.150.0080.03812.32
5.4.140.0060.04112.01
5.4.130.0080.04212.00
5.4.120.0080.04511.95
5.4.110.0070.04211.95
5.4.100.0120.04111.95
5.4.90.0100.05711.95
5.4.80.0040.04311.95
5.4.70.0070.03711.94
5.4.60.0030.04111.94
5.4.50.0060.03711.95
5.4.40.0040.03711.93
5.4.30.0030.03911.93
5.4.20.0050.03711.93
5.4.10.0050.03711.93
5.4.00.0050.03911.42
5.3.290.0030.04112.80
5.3.280.0090.03712.71
5.3.270.0100.05212.72
5.3.260.0060.05912.72
5.3.250.0110.05012.72
5.3.240.0060.05512.72
5.3.230.0110.03912.71
5.3.220.0070.04212.68
5.3.210.0090.03812.68
5.3.200.0070.03712.68
5.3.190.0140.04312.68
5.3.180.0080.05812.67
5.3.170.0120.07212.67
5.3.160.0140.06112.67
5.3.150.0070.05412.67
5.3.140.0080.05112.66
5.3.130.0050.05112.66
5.3.120.0070.05612.66
5.3.110.0060.05812.66
5.3.100.0070.03712.12
5.3.90.0070.03712.09
5.3.80.0070.03712.07
5.3.70.0090.03412.07
5.3.60.0110.04012.06
5.3.50.0060.04312.00
5.3.40.0060.03612.00
5.3.30.0080.03211.95
5.3.20.0020.03911.72
5.3.10.0090.03311.70
5.3.00.0060.03811.68
5.2.170.0030.0339.18
5.2.160.0070.0289.18
5.2.150.0050.0329.18
5.2.140.0070.0289.18
5.2.130.0070.0299.14
5.2.120.0060.0299.14
5.2.110.0030.0349.14
5.2.100.0080.0269.14
5.2.90.0080.0269.14
5.2.80.0070.0349.14
5.2.70.0040.0319.14
5.2.60.0040.0319.09
5.2.50.0090.0269.06
5.2.40.0030.0379.04
5.2.30.0100.0339.01
5.2.20.0060.0309.01
5.2.10.0080.0288.92
5.2.00.0050.0328.78
5.1.60.0050.0238.07
5.1.50.0050.0248.07
5.1.40.0050.0248.05
5.1.30.0040.0268.40
5.1.20.0080.0228.41
5.1.10.0040.0258.14
5.1.00.0020.0278.14
5.0.50.0060.0216.62
5.0.40.0030.0206.48
5.0.30.0030.0326.29
5.0.20.0050.0256.27
5.0.10.0050.0226.24
5.0.00.0010.0346.23
4.4.90.0020.0164.78
4.4.80.0040.0154.75
4.4.70.0050.0144.75
4.4.60.0020.0224.75
4.4.50.0050.0214.77
4.4.40.0040.0244.71
4.4.30.0010.0194.76
4.4.20.0020.0194.85
4.4.10.0010.0184.84
4.4.00.0030.0254.76
4.3.110.0040.0164.67
4.3.100.0020.0164.66
4.3.90.0020.0234.63
4.3.80.0010.0344.58
4.3.70.0050.0144.63
4.3.60.0010.0194.63
4.3.50.0020.0154.62
4.3.40.0020.0244.54
4.3.30.0030.0143.29
4.3.20.0010.0163.26
4.3.10.0010.0173.21
4.3.00.0070.01313.17

preferences:
43.1 ms | 401 KiB | 5 Q