3v4l.org

run code in 300+ PHP versions simultaneously
<?php function nek($fek) { if($fek = 0) { return $fek; } else { return nek($fek--) + nek($fek--); } } echo nek(6);

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)
8.3.60.0490.02072.75
8.3.50.0660.01873.20
8.3.40.0230.01744.59
8.3.30.0330.00744.91
8.3.20.0190.00446.34
8.3.10.0090.00949.38
8.3.00.0130.00945.08
8.2.180.0530.02372.22
8.2.170.0300.02044.75
8.2.160.0360.00346.38
8.2.150.0190.00345.14
8.2.140.0170.00345.90
8.2.130.0100.01750.13
8.2.120.0160.00347.20
8.2.110.0130.00748.48
8.2.100.0170.01443.91
8.2.90.0160.00345.17
8.2.80.0170.00343.38
8.2.70.0100.01043.25
8.2.60.0200.00343.79
8.2.50.0100.01443.38
8.2.40.0100.01046.54
8.2.30.0170.00744.18
8.2.20.0130.01043.42
8.2.10.0130.00743.97
8.2.00.0130.01343.59
8.1.280.0570.02772.13
8.1.270.0140.00749.67
8.1.260.0200.01746.48
8.1.250.0400.01048.99
8.1.240.0210.00348.91
8.1.230.0250.00744.96
8.1.220.0030.01743.66
8.1.210.0140.00743.35
8.1.200.0070.01543.22
8.1.190.0190.00343.10
8.1.180.0190.00643.23
8.1.170.0180.00444.64
8.1.160.0130.00747.89
8.1.150.0120.00844.56
8.1.140.0170.00743.39
8.1.130.0090.00943.85
8.1.120.0070.01143.37
8.1.110.0120.01243.41
8.1.100.0090.00943.42
8.1.90.0250.00343.36
8.1.80.0230.00043.45
8.1.70.0130.00743.32
8.1.60.0230.01043.63
8.1.50.0100.01043.55
8.1.40.0170.01043.59
8.1.30.0130.01043.51
8.1.20.0130.00743.64
8.1.10.0380.01073.13
8.1.00.0100.02373.05
8.0.300.0160.01672.85
8.0.290.0170.01772.68
8.0.280.0380.00373.89
8.0.270.0300.01372.71
8.0.260.0300.01072.66
8.0.250.0230.00772.31
8.0.240.0310.00672.44
8.0.230.0140.01772.50
8.0.220.0200.01272.43
8.0.210.0250.00672.21
8.0.200.0280.00972.49
8.0.190.0350.00772.43
8.0.180.0270.01772.39
8.0.170.0330.00772.38
8.0.160.0150.02172.34
8.0.150.0260.01972.44
8.0.140.0130.02372.25
8.0.130.0550.014121.75
8.0.120.0280.01472.38
8.0.110.0200.01372.30
8.0.100.0170.01472.41
8.0.90.0140.02172.39
8.0.80.0420.03372.35
8.0.70.0260.01372.18
8.0.60.0210.01072.19
8.0.50.0230.01372.38
8.0.30.0610.02372.65
8.0.20.0670.02072.48
8.0.10.0310.00372.42
8.0.00.0550.03172.27
7.4.330.0330.00369.94
7.4.320.0100.02071.96
7.4.300.0240.01771.97
7.4.290.0410.00372.05
7.4.280.0290.01471.99
7.4.270.0330.01072.02
7.4.260.0280.00771.91
7.4.250.0200.01772.12
7.4.240.0260.01072.04
7.4.230.0220.01271.98
7.4.220.0470.04072.11
7.4.210.0400.03272.06
7.4.200.0220.01071.88
7.4.190.0290.00372.16
7.4.160.0500.02872.15
7.4.150.0680.01971.88
7.4.140.0610.02972.12
7.4.130.0500.03371.91
7.4.120.0560.02871.90
7.4.110.0630.02072.18
7.4.100.0540.03272.18
7.4.90.0490.03272.01
7.4.80.0620.04671.80
7.4.70.0590.02671.89
7.4.60.0570.04171.95
7.4.50.0380.00372.15
7.4.40.0630.02272.01
7.4.30.0460.03471.82
7.4.00.0260.02370.61
7.3.330.0430.013121.68
7.3.320.0620.019121.66
7.3.310.0220.01471.64
7.3.300.0200.01371.61
7.3.290.0560.05771.73
7.3.280.0590.03671.75
7.3.270.0690.02071.84
7.3.260.0630.02572.01
7.3.250.0710.02771.83
7.3.240.0560.03071.89
7.3.230.0750.03071.73
7.3.210.0660.03371.99
7.3.200.0480.03972.11
7.3.190.0690.01971.94
7.3.180.0600.02271.97
7.3.170.0570.03771.73
7.3.160.0510.02971.78
7.3.120.0140.03470.32
7.2.330.0710.02071.84
7.2.320.0630.03471.80
7.2.310.0660.05372.26
7.2.300.0500.03471.91
7.2.290.0630.02871.93
7.2.60.1400.02078.81
7.2.00.0070.02081.44
7.1.200.1210.00777.45
7.1.100.0270.02080.00
7.1.70.0540.00579.00
7.1.60.0230.03079.32
7.1.50.0820.02378.94
7.1.00.0130.09084.48
7.0.200.8050.01372.69
7.0.140.0100.08784.00
7.0.80.0800.07775.63
7.0.70.2300.06075.53
7.0.60.1530.08075.55
7.0.50.2300.04376.02
7.0.40.0130.04320.08
7.0.30.0170.04020.14
7.0.20.0070.06020.18
7.0.10.0100.05019.95
7.0.00.0170.03320.11
5.6.280.0270.09385.75
5.6.230.0400.09085.38
5.6.220.0130.07085.39
5.6.210.0330.09085.36
5.6.200.0300.11085.67
5.6.190.0230.05785.67
5.6.180.0300.05385.89
5.6.170.0170.05785.77
5.6.160.0100.06785.75
5.6.150.0200.04785.72
5.6.140.0330.04385.75
5.6.130.0200.05385.78
5.6.120.0200.05385.77
5.6.110.0330.06385.73
5.6.100.0130.07085.64
5.6.90.0270.05385.63
5.6.80.0270.05785.13
5.6.70.0200.07385.17
5.6.60.0330.04385.18
5.6.50.0270.05085.05
5.6.40.0200.06785.09
5.6.30.0200.05785.02
5.6.20.0230.05385.20
5.6.10.0130.09085.02
5.6.00.0230.07785.17
5.5.370.0370.10085.20
5.5.360.0300.10385.09
5.5.350.0230.06085.05
5.5.340.0270.09385.46
5.5.330.0330.04785.48
5.5.320.0270.07785.44
5.5.310.0270.05385.50
5.5.300.0370.07085.46
5.5.290.0230.07085.44
5.5.280.0170.07385.48
5.5.270.0200.06085.50
5.5.260.0170.09385.57
5.5.250.0270.05085.35
5.5.240.0300.05084.93
5.5.230.0230.05784.86
5.5.220.0230.04784.81
5.5.210.0230.05784.71
5.5.200.0200.08384.86
5.5.190.0170.06384.79
5.5.180.0200.05084.94
5.5.160.0430.10084.91
5.5.150.0270.09084.98
5.5.140.0230.11084.79
5.5.130.0230.06384.96
5.5.120.0270.10084.78
5.5.110.0430.09384.98
5.5.100.0270.09784.76
5.5.90.0400.08784.82
5.5.80.0400.10384.78
5.5.70.0430.08084.86
5.5.60.0200.07784.83
5.5.50.0530.08084.81
5.5.40.0300.09384.64
5.5.30.0170.11084.85
5.5.20.0170.05784.66
5.5.10.0270.04784.80
5.5.00.0230.08784.68
5.4.450.0330.04783.96
5.4.440.0330.05783.98
5.4.430.0200.05384.17
5.4.420.0270.05383.81
5.4.410.0200.10083.94
5.4.400.0200.06383.59
5.4.390.0100.06383.63
5.4.380.0300.04383.53
5.4.370.0270.07783.85
5.4.360.0330.04383.63
5.4.350.0130.05783.68
5.4.340.0230.05383.82
5.4.320.0270.07083.49
5.4.310.0270.07083.66
5.4.300.0300.05783.63
5.4.290.0530.08383.73
5.4.280.0230.06783.54
5.4.270.0300.05383.63
5.4.260.0370.08783.67
5.4.250.0170.10783.66
5.4.240.0370.09083.70
5.4.230.0370.04783.74
5.4.220.0270.07383.75
5.4.210.0400.03783.64
5.4.200.0330.08783.52
5.4.190.0300.06083.66
5.4.180.0230.10783.69
5.4.170.0500.08383.53
5.4.160.0370.10083.73
5.4.150.0430.08083.64
5.4.140.0400.07381.18
5.4.130.0470.09380.88
5.4.120.0370.05081.06
5.4.110.0530.07780.96
5.4.100.0330.07781.10
5.4.90.0300.05781.05
5.4.80.0230.09081.13
5.4.70.0270.09781.14
5.4.60.0270.10081.02
5.4.50.0400.04781.12
5.4.40.0400.09381.08
5.4.30.0270.10781.12
5.4.20.0330.08381.12
5.4.10.0300.09781.02
5.4.00.0300.05080.63
5.3.290.0230.09378.52
5.3.280.0430.07778.34
5.3.270.0270.11778.34
5.3.260.0370.11378.34
5.3.250.0400.11078.34
5.3.240.0230.08778.37
5.3.230.0470.09078.32
5.3.220.0200.09378.26
5.3.210.0400.11378.47
5.3.200.0370.09078.25
5.3.190.0430.09778.42
5.3.180.0170.12078.39
5.3.170.0470.08078.59
5.3.160.0430.10778.25
5.3.150.0270.11778.26
5.3.140.0370.11078.43
5.3.130.0230.08078.45
5.3.120.0370.10778.23
5.3.110.0200.11078.24
5.3.100.0270.10377.92
5.3.90.0200.12377.75
5.3.80.0400.05777.83
5.3.70.0400.08077.68
5.3.60.0200.06777.82
5.3.50.0430.09377.63
5.3.40.0330.10377.65
5.3.30.0370.10777.58
5.3.20.0170.11077.47
5.3.10.0230.11077.40
5.3.00.0270.09777.33
5.2.170.0100.06723.52
5.2.160.0100.07023.39
5.2.150.0230.05023.46
5.2.140.0100.04723.49
5.2.130.0070.07723.50
5.2.120.0070.07723.61
5.2.110.0200.05723.60
5.2.100.0130.06323.58
5.2.90.0030.07323.56
5.2.80.0100.07323.30
5.2.70.0100.07023.55
5.2.60.0100.04023.47
5.2.50.0070.04023.85
5.2.40.0070.03323.94
5.2.30.0130.06023.95
5.2.20.0130.05323.96
5.2.10.0130.06023.94
5.2.00.0170.06323.70
5.1.60.0130.05323.81
5.1.50.0130.04024.04
5.1.40.0230.05023.92
5.1.30.0100.06324.36
5.1.20.0070.07324.39
5.1.10.0000.07024.09
5.1.00.0100.05324.08
5.0.50.0130.05021.50
5.0.40.0000.03321.32
5.0.30.0100.06021.13
5.0.20.0070.02721.10
5.0.10.0100.05021.13
5.0.00.0230.06341.57
4.4.90.0100.03314.98
4.4.80.0030.03314.96
4.4.70.0030.03714.97
4.4.60.0070.04314.93
4.4.50.0030.02315.00
4.4.40.0070.03714.90
4.4.30.0030.02314.96
4.4.20.0070.02014.93
4.4.10.0130.03715.04
4.4.00.0030.05014.91
4.3.110.0100.04016.43
4.3.100.0070.04016.29
4.3.90.0100.03316.37
4.3.80.0030.03724.74
4.3.70.0100.01316.25
4.3.60.0030.02016.25
4.3.50.0000.04316.34
4.3.40.0030.04016.77
4.3.30.0100.02015.57
4.3.20.0030.03713.61
4.3.10.0100.02715.51
4.3.00.0100.03315.41

preferences:
43.65 ms | 401 KiB | 5 Q