3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a'=>'A','b'=>'B']; echo key($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)
8.3.60.0060.00816.25
8.3.50.0240.00622.99
8.3.40.0110.00718.56
8.3.30.0140.00318.84
8.3.20.0070.00020.04
8.3.10.0040.00423.66
8.3.00.0030.00619.38
8.2.180.0060.00916.38
8.2.170.0110.00322.96
8.2.160.0000.01420.30
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00020.96
8.2.110.0090.00022.25
8.2.100.0060.00618.09
8.2.90.0030.00719.21
8.2.80.0000.00917.97
8.2.70.0000.00817.63
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0040.00418.34
8.2.30.0000.00718.04
8.2.20.0000.00717.61
8.2.10.0040.00417.97
8.2.00.0040.00417.67
8.1.280.0120.00625.92
8.1.270.0000.00823.66
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00024.00
8.1.230.0040.00718.97
8.1.220.0040.00417.76
8.1.210.0050.00318.77
8.1.200.0040.00817.23
8.1.190.0030.00617.23
8.1.180.0040.00418.10
8.1.170.0100.00018.47
8.1.160.0000.00721.93
8.1.150.0040.00418.88
8.1.140.0040.00417.28
8.1.130.0030.00317.75
8.1.120.0030.00317.41
8.1.110.0040.00417.23
8.1.100.0000.00717.37
8.1.90.0000.00717.43
8.1.80.0040.00417.42
8.1.70.0000.00717.32
8.1.60.0030.00717.39
8.1.50.0040.00417.35
8.1.40.0040.00417.32
8.1.30.0000.00817.54
8.1.20.0040.00417.42
8.1.10.0050.00217.59
8.1.00.0070.00017.48
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0040.00418.47
8.0.270.0000.00717.20
8.0.260.0030.00317.11
8.0.250.0000.00616.98
8.0.240.0070.00017.04
8.0.230.0000.00816.91
8.0.220.0000.00716.80
8.0.210.0030.00316.82
8.0.200.0070.00016.87
8.0.190.0040.00416.87
8.0.180.0040.00416.85
8.0.170.0040.00416.83
8.0.160.0040.00416.84
8.0.150.0030.00316.64
8.0.140.0000.00816.58
8.0.130.0050.00013.22
8.0.120.0040.00416.77
8.0.110.0080.00016.70
8.0.100.0000.00716.68
8.0.90.0040.00416.89
8.0.80.0150.00616.74
8.0.70.0040.00416.86
8.0.60.0000.00816.66
8.0.50.0040.00416.59
8.0.30.0110.00817.04
8.0.20.0110.00917.40
8.0.10.0000.00716.79
8.0.00.0090.00816.68
7.4.330.0030.00315.00
7.4.320.0000.00716.42
7.4.300.0050.00216.43
7.4.290.0070.00016.52
7.4.280.0000.00716.52
7.4.270.0030.00316.53
7.4.260.0050.00216.52
7.4.250.0000.00816.40
7.4.240.0080.00016.48
7.4.230.0030.00316.45
7.4.220.0120.00616.37
7.4.210.0070.01316.55
7.4.200.0000.00716.59
7.4.160.0100.01016.30
7.4.150.0070.01017.40
7.4.140.0090.01217.86
7.4.130.0080.00816.48
7.4.120.0080.00916.40
7.4.110.0100.00616.46
7.4.100.0060.01116.48
7.4.90.0150.00716.64
7.4.80.0070.01419.39
7.4.70.0160.00516.56
7.4.60.0120.00416.32
7.4.50.0030.00316.20
7.4.40.0100.00716.38
7.4.30.0060.00916.35
7.4.00.0080.00714.83
7.3.330.0000.00612.97
7.3.320.0000.00513.03
7.3.310.0070.00016.19
7.3.300.0000.00716.14
7.3.290.0040.01116.13
7.3.280.0080.00816.20
7.3.270.0080.00817.40
7.3.260.0060.01216.40
7.3.250.0150.00716.22
7.3.240.0100.00716.41
7.3.230.0100.00716.39
7.3.210.0090.00916.33
7.3.200.0070.01016.18
7.3.190.0150.00616.11
7.3.180.0190.00316.41
7.3.170.0120.00816.27
7.3.160.0090.00916.29
7.3.120.0070.01014.55
7.3.110.0000.01314.75
7.3.100.0030.01414.57
7.3.90.0030.01714.41
7.3.80.0030.01014.38
7.3.70.0030.00714.64
7.3.60.0060.00614.68
7.3.50.0110.00414.68
7.3.40.0080.00414.61
7.3.30.0070.00714.80
7.3.20.0030.01016.67
7.3.10.0030.01216.43
7.3.00.0040.00616.45
7.2.330.0120.00616.59
7.2.320.0060.00916.35
7.2.310.0100.00716.55
7.2.300.0070.01016.55
7.2.290.0070.01016.67
7.2.250.0030.01615.02
7.2.240.0100.00614.74
7.2.230.0060.01315.12
7.2.220.0030.01814.96
7.2.210.0060.00614.79
7.2.200.0000.01414.90
7.2.190.0000.01214.63
7.2.180.0030.00615.00
7.2.170.0040.00714.67
7.2.130.0040.01116.61
7.2.120.0060.00916.80
7.2.110.0060.00316.70
7.2.100.0070.00716.89
7.2.90.0030.01416.79
7.2.80.0030.00716.60
7.2.70.0060.01016.80
7.2.60.0080.00616.68
7.2.50.0160.00816.71
7.2.40.0060.01016.76
7.2.30.0040.00916.77
7.2.20.0080.00516.72
7.2.10.0070.00716.75
7.2.00.0060.00818.05
7.1.330.0070.00715.48
7.1.320.0070.01115.77
7.1.310.0040.01215.48
7.1.300.0040.01115.81
7.1.290.0070.01015.77
7.1.280.0030.01015.70
7.1.270.0000.01015.38
7.1.260.0070.01015.51
7.1.250.0030.01015.72
7.1.200.0040.00415.50
7.1.100.0160.00317.89
7.1.70.0030.00617.05
7.1.60.0130.01019.46
7.1.50.0160.00616.89
7.1.00.0070.07322.44
7.0.200.0040.00416.56
7.0.140.0030.07722.00
7.0.60.0030.04019.92
7.0.50.0070.04017.89
7.0.40.0130.07020.38
7.0.30.0530.07020.22
7.0.20.0270.05020.13
7.0.10.0070.05020.13
7.0.00.0030.06320.19
5.6.280.0070.06721.02
5.6.210.0070.09320.68
5.6.200.0070.03718.17
5.6.190.0200.04720.58
5.6.180.0200.04020.27
5.6.170.0270.03320.48
5.6.160.0030.04320.37
5.6.150.0070.05318.09
5.6.140.0070.05318.21
5.6.130.0070.06718.15
5.6.120.0170.06720.98
5.6.110.0070.08021.02
5.6.100.0070.03720.97
5.6.90.0030.05021.12
5.6.80.0100.07320.52
5.6.70.3300.03020.52
5.5.350.0200.06720.37
5.5.340.0070.03717.88
5.5.330.0070.04720.23
5.5.320.0100.04720.28
5.5.310.0270.08020.24
5.5.300.0070.04018.01
5.5.290.0030.04317.98
5.5.280.0030.04020.76
5.5.270.0030.07320.75
5.5.260.0130.07720.83
5.5.250.0030.06320.45
5.5.240.0170.04020.11
5.4.450.0100.04319.11
5.4.440.0130.05019.48
5.4.430.0130.04019.54
5.4.420.0330.04019.41
5.4.410.0100.04719.00
5.4.400.0400.04319.11
5.4.390.0230.05719.25
5.4.380.0330.05718.71
5.4.370.0500.05718.73
5.4.360.0400.05018.56
5.4.350.0270.06018.70
5.4.340.0330.05018.62
5.4.320.0060.04112.45
5.4.310.0090.03712.45
5.4.300.0070.03512.45
5.4.290.0100.03412.45
5.4.280.0070.03512.35
5.4.270.0040.03712.34
5.4.260.0030.03912.34
5.4.250.0070.03512.34
5.4.240.0070.03412.34
5.4.230.0040.04012.34
5.4.220.0030.03712.34
5.4.210.0120.02812.34
5.4.200.0030.04112.34
5.4.190.0070.03512.33
5.4.180.0060.03512.33
5.4.170.0050.03912.34
5.4.160.0050.03812.34
5.4.150.0050.04412.34
5.4.140.0060.04612.02
5.4.130.0090.03212.01
5.4.120.0080.03311.96
5.4.110.0040.03711.96
5.4.100.0090.03511.96
5.4.90.0050.04211.96
5.4.80.0030.04111.96
5.4.70.0060.03511.96
5.4.60.0070.03311.96
5.4.50.0040.03611.96
5.4.40.0050.03511.95
5.4.30.0060.03511.95
5.4.20.0030.03711.95
5.4.10.0090.03011.95
5.4.00.0060.03511.43
5.3.290.0080.03912.80
5.3.280.0070.03812.71
5.3.270.0060.03812.73
5.3.260.0040.04012.72
5.3.250.0070.03712.72
5.3.240.0050.03812.72
5.3.230.0060.03712.71
5.3.220.0080.03512.68
5.3.210.0090.03812.68
5.3.200.0090.03312.68
5.3.190.0050.03812.67
5.3.180.0030.03912.68
5.3.170.0070.04312.67
5.3.160.0030.03912.67
5.3.150.0070.03512.67
5.3.140.0100.03412.66
5.3.130.0080.04712.66
5.3.120.0070.04112.66
5.3.110.0080.05412.66
5.3.100.0110.04512.12
5.3.90.0120.05412.09
5.3.80.0080.04712.07
5.3.70.0100.04712.07
5.3.60.0120.04012.07
5.3.50.0140.03412.00
5.3.40.0060.04512.00
5.3.30.0070.04211.95
5.3.20.0090.04411.72
5.3.10.0100.03411.70
5.3.00.0070.03711.68
5.2.170.0120.0429.18
5.2.160.0130.0389.18
5.2.150.0020.0379.18
5.2.140.0050.0319.18
5.2.130.0060.0299.14
5.2.120.0020.0329.14
5.2.110.0090.0299.14
5.2.100.0080.0299.14
5.2.90.0050.0309.14
5.2.80.0050.0349.14
5.2.70.0090.0349.14
5.2.60.0090.0349.09
5.2.50.0060.0319.06
5.2.40.0020.0329.04
5.2.30.0050.0309.01
5.2.20.0050.0309.00
5.2.10.0020.0318.93
5.2.00.0060.0278.79
5.1.60.0040.0298.06
5.1.50.0010.0288.06
5.1.40.0050.0318.05
5.1.30.0070.0348.39
5.1.20.0060.0268.41
5.1.10.0050.0268.14
5.1.00.0060.0248.14
5.0.50.0030.0226.62
5.0.40.0050.0186.48
5.0.30.0040.0306.29
5.0.20.0040.0196.26
5.0.10.0050.0186.24
5.0.00.0060.0296.23
4.4.90.0020.0174.78
4.4.80.0070.0114.75
4.4.70.0050.0134.75
4.4.60.0030.0164.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0050.0144.76
4.4.20.0060.0184.85
4.4.10.0000.0184.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0040.0164.67
4.3.90.0040.0134.63
4.3.80.0020.0254.58
4.3.70.0000.0264.63
4.3.60.0040.0134.63
4.3.50.0050.0134.63
4.3.40.0040.0294.54
4.3.30.0030.0213.28
4.3.20.0030.0213.26
4.3.10.0040.0203.21
4.3.00.0030.01018.41

preferences:
46.89 ms | 401 KiB | 5 Q