3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(0 => 100, "color" => "red","colors" => "red"); $keys = array_keys($array); print_r($keys[2]); ?>

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)
8.3.60.0110.01116.48
8.3.50.0070.01122.83
8.3.40.0090.00618.63
8.3.30.0000.01419.04
8.3.20.0050.00220.09
8.3.10.0050.00323.69
8.3.00.0080.00019.38
8.2.180.0060.00918.25
8.2.170.0170.00322.96
8.2.160.0070.00720.52
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0150.00426.16
8.2.120.0060.00321.04
8.2.110.0030.00720.97
8.2.100.0110.00017.91
8.2.90.0080.00019.05
8.2.80.0080.00017.97
8.2.70.0030.00517.50
8.2.60.0070.00018.05
8.2.50.0030.00518.10
8.2.40.0070.00020.60
8.2.30.0000.00719.09
8.2.20.0040.00417.74
8.2.10.0000.00818.11
8.2.00.0000.00717.60
8.1.280.0070.01025.92
8.1.270.0060.00323.81
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00320.99
8.1.230.0120.00017.83
8.1.220.0000.00717.79
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0070.00317.13
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0080.00018.75
8.1.150.0020.00520.03
8.1.140.0050.00217.39
8.1.130.0030.00317.80
8.1.120.0030.00317.42
8.1.110.0040.00417.40
8.1.100.0000.00717.36
8.1.90.0040.00317.41
8.1.80.0040.00417.33
8.1.70.0000.00717.37
8.1.60.0000.00917.42
8.1.50.0050.00317.43
8.1.40.0050.00217.43
8.1.30.0080.00017.55
8.1.20.0030.00517.59
8.1.10.0000.00717.55
8.1.00.0040.00417.35
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.25
8.0.270.0040.00417.22
8.0.260.0050.00317.10
8.0.250.0040.00416.89
8.0.240.0040.00716.81
8.0.230.0030.00316.88
8.0.220.0000.00616.84
8.0.210.0030.00316.73
8.0.200.0040.00416.77
8.0.190.0070.00016.81
8.0.180.0070.00016.86
8.0.170.0040.00416.74
8.0.160.0040.00416.86
8.0.150.0030.00316.79
8.0.140.0050.00216.71
8.0.130.0040.00413.21
8.0.120.0000.00816.80
8.0.110.0050.00316.84
8.0.100.0050.00216.69
8.0.90.0040.00416.81
8.0.80.0060.00916.76
8.0.70.0000.00916.86
8.0.60.0050.00216.87
8.0.50.0050.00316.86
8.0.30.0090.00917.08
8.0.20.0100.00817.40
8.0.10.0040.00416.94
8.0.00.0060.01216.69
7.4.330.0020.00215.14
7.4.320.0000.00616.44
7.4.300.0000.00616.54
7.4.290.0030.00316.45
7.4.280.0040.00416.53
7.4.270.0070.00016.43
7.4.260.0000.00716.56
7.4.250.0000.00716.35
7.4.240.0030.00516.47
7.4.230.0070.00016.63
7.4.220.0090.01516.46
7.4.210.0070.00716.60
7.4.200.0070.00016.54
7.4.160.0040.01116.26
7.4.150.0130.00917.40
7.4.140.0080.00817.86
7.4.130.0120.00516.46
7.4.120.0130.00416.47
7.4.110.0120.00916.24
7.4.100.0190.00416.57
7.4.90.0040.01416.30
7.4.80.0090.00919.39
7.4.70.0130.00616.46
7.4.60.0160.00616.52
7.4.50.0000.00816.06
7.4.40.0030.01416.43
7.4.30.0130.00316.17
7.4.00.0070.01014.80
7.3.330.0050.00013.11
7.3.320.0020.00212.99
7.3.310.0000.00716.33
7.3.300.0030.00316.14
7.3.290.0090.00516.14
7.3.280.0050.01316.22
7.3.270.0130.01017.40
7.3.260.0100.00716.32
7.3.250.0120.00816.23
7.3.240.0110.01016.30
7.3.230.0140.00316.41
7.3.210.0110.00616.50
7.3.200.0090.00919.39
7.3.190.0080.01616.26
7.3.180.0100.00716.11
7.3.170.0120.00316.41
7.3.160.0100.00616.36
7.3.120.0120.00614.46
7.3.110.0000.01914.88
7.3.100.0100.00714.93
7.3.90.0070.01014.59
7.3.80.0040.01114.98
7.3.70.0030.01214.77
7.3.60.0040.00414.67
7.3.50.0120.00314.79
7.3.40.0040.01114.50
7.3.30.0140.00314.75
7.3.20.0000.01216.51
7.3.10.0030.01216.38
7.3.00.0100.00316.55
7.2.330.0070.01616.61
7.2.320.0140.00716.30
7.2.310.0140.00616.37
7.2.300.0070.01016.21
7.2.290.0090.01516.35
7.2.250.0060.01014.65
7.2.240.0070.01014.94
7.2.230.0090.00614.87
7.2.220.0060.00615.15
7.2.210.0060.00915.00
7.2.200.0090.00614.95
7.2.190.0060.01014.44
7.2.180.0030.00714.97
7.2.170.0000.01514.92
7.1.330.0070.00715.59
7.1.320.0030.00715.72
7.1.310.0060.00615.61
7.1.300.0000.01115.82
7.1.290.0030.01015.75
7.1.280.0040.01215.54
7.1.270.0030.01415.88
7.1.260.0030.00815.64
7.1.70.0080.00817.20
7.1.60.0070.01719.40
7.1.50.0110.00734.83
7.1.00.0030.07722.46
7.0.200.0070.00016.77
7.0.140.0030.07022.09
7.0.60.0030.04019.95
7.0.50.0070.08317.90
7.0.40.0130.07020.20
7.0.30.0300.06020.02
7.0.20.0230.05720.35
7.0.10.0100.08320.17
7.0.00.0070.06720.09
5.6.280.0130.06021.13
5.6.210.0100.07020.50
5.6.200.0000.08718.16
5.6.190.0100.06320.28
5.6.180.0370.07720.56
5.6.170.0330.06320.48
5.6.160.0030.04320.44
5.6.150.0100.06318.12
5.6.140.0070.03318.15
5.6.130.0070.05718.18
5.6.120.0030.06320.98
5.6.110.0130.07021.10
5.6.100.0100.08020.93
5.6.90.0070.07721.10
5.6.80.0130.07320.43
5.5.350.0070.08020.37
5.5.340.0000.08317.96
5.5.330.0030.07720.06
5.5.320.0370.07020.41
5.5.310.0170.04720.21
5.5.300.0100.07717.91
5.5.290.0030.08717.97
5.5.280.0030.04020.75
5.5.270.0030.06020.76
5.5.260.0100.08020.87
5.5.250.0030.06720.71
5.5.240.0230.07720.03
5.4.450.0570.04019.39
5.4.440.0170.04719.24
5.4.430.0130.05019.14
5.4.420.0170.05719.45
5.4.410.0400.04319.00
5.4.400.0500.02719.14
5.4.390.0500.03719.25
5.4.380.0730.05018.61
5.4.370.0570.05318.52
5.4.360.0030.06018.63
5.4.350.0200.04718.61
5.4.340.0130.05718.73
5.4.320.0060.03712.45
5.4.310.0070.04612.45
5.4.300.0050.03712.45
5.4.290.0060.03712.45
5.4.280.0040.03712.35
5.4.270.0040.03712.34
5.4.260.0090.03312.35
5.4.250.0080.03512.34
5.4.240.0070.03512.34
5.4.230.0110.03212.34
5.4.220.0060.03612.34
5.4.210.0040.03712.34
5.4.200.0090.04212.34
5.4.190.0070.04112.34
5.4.180.0030.03912.33
5.4.170.0090.03312.34
5.4.160.0050.03612.34
5.4.150.0070.03412.34
5.4.140.0050.03612.02
5.4.130.0040.03612.01
5.4.120.0030.03711.97
5.4.110.0080.03211.96
5.4.100.0060.03411.96
5.4.90.0070.03511.96
5.4.80.0030.03811.96
5.4.70.0050.03411.96
5.4.60.0080.03211.96
5.4.50.0080.03411.96
5.4.40.0050.03511.95
5.4.30.0050.03611.95
5.4.20.0070.03411.95
5.4.10.0060.03411.95
5.4.00.0050.03711.43
5.3.290.0050.04112.80
5.3.280.0060.03812.71
5.3.270.0060.04212.72
5.3.260.0080.03712.72
5.3.250.0110.03312.72
5.3.240.0080.04212.72
5.3.230.0090.03512.71
5.3.220.0050.03712.68
5.3.210.0080.03612.68
5.3.200.0050.03612.68
5.3.190.0050.03812.68
5.3.180.0080.03412.67
5.3.170.0060.03712.67
5.3.160.0080.04012.67
5.3.150.0070.03912.68
5.3.140.0070.03512.66
5.3.130.0060.03812.66
5.3.120.0040.04012.66
5.3.110.0050.04712.66
5.3.100.0070.03512.11
5.3.90.0050.03612.08
5.3.80.0050.03612.07
5.3.70.0050.03712.07
5.3.60.0080.03812.07
5.3.50.0080.03512.00
5.3.40.0070.03512.00
5.3.30.0070.03411.95
5.3.20.0050.03611.72
5.3.10.0040.03611.69
5.3.00.0080.03311.68
5.2.170.0060.0299.18
5.2.160.0050.0289.18
5.2.150.0040.0309.18
5.2.140.0030.0319.17
5.2.130.0040.0299.14
5.2.120.0030.0299.14
5.2.110.0030.0309.14
5.2.100.0050.0279.14
5.2.90.0030.0299.14
5.2.80.0040.0309.14
5.2.70.0040.0309.13
5.2.60.0050.0299.08
5.2.50.0020.0329.05
5.2.40.0050.0289.04
5.2.30.0040.0309.00
5.2.20.0040.0318.99
5.2.10.0040.0298.91
5.2.00.0060.0288.77
5.1.60.0020.0278.06
5.1.50.0000.0288.05
5.1.40.0040.0238.04
5.1.30.0040.0258.39
5.1.20.0030.0288.41
5.1.10.0050.0248.13
5.1.00.0080.0278.13
5.0.50.0030.0206.62
5.0.40.0050.0186.47
5.0.30.0030.0316.29
5.0.20.0030.0206.26
5.0.10.0010.0236.23
5.0.00.0040.0306.23
4.4.90.0050.0144.77
4.4.80.0020.0164.75
4.4.70.0040.0144.75
4.4.60.0020.0164.75
4.4.50.0010.0164.77
4.4.40.0020.0284.71
4.4.30.0030.0194.76
4.4.20.0030.0154.84
4.4.10.0040.0144.85
4.4.00.0020.0254.75
4.3.110.0020.0164.67
4.3.100.0030.0144.66
4.3.90.0020.0154.64
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0020.0164.63
4.3.40.0050.0214.54
4.3.30.0030.0153.28
4.3.20.0040.0143.26
4.3.10.0020.0153.22
4.3.00.0000.01715.95

preferences:
48.67 ms | 401 KiB | 5 Q