3v4l.org

run code in 300+ PHP versions simultaneously
<?php function fib($number) { if ($number == 0 || $number == 0) { return $number; } return fib($number - 1) + fib($number - 2); } echo fib(8);

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)
8.3.60.0640.02072.38
8.3.50.0860.02672.26
8.3.40.0480.01644.89
8.3.30.0330.00744.67
8.3.20.0220.00046.43
8.3.10.0160.00349.26
8.3.00.0200.00743.92
8.2.180.0620.01473.15
8.2.170.0240.01744.88
8.2.160.0300.01746.51
8.2.150.0240.00044.82
8.2.140.0160.00646.46
8.2.130.0090.00947.59
8.2.120.0250.00443.38
8.2.110.0060.01349.67
8.2.100.0240.00743.68
8.2.90.0070.01445.05
8.2.80.0250.00743.63
8.2.70.0120.00943.49
8.2.60.0140.01043.68
8.2.50.0130.01043.50
8.2.40.0160.00645.39
8.2.30.0150.00446.50
8.2.20.0180.00443.41
8.2.10.0130.00643.84
8.2.00.0160.00343.92
8.1.280.0130.01979.65
8.1.270.0090.00950.68
8.1.260.0160.00646.13
8.1.250.0160.00648.18
8.1.240.0100.01448.05
8.1.230.0200.01043.52
8.1.220.0150.00643.68
8.1.210.0100.01343.25
8.1.200.0180.01443.10
8.1.190.0070.01443.23
8.1.180.0120.00643.51
8.1.170.0150.00645.03
8.1.160.0100.01048.00
8.1.150.0170.00744.89
8.1.140.0200.00045.56
8.1.130.0100.01043.64
8.1.120.0100.01043.45
8.1.110.0110.01143.43
8.1.100.0150.00443.34
8.1.90.0160.00643.44
8.1.80.0140.00743.32
8.1.70.0190.00043.45
8.1.60.0090.01243.52
8.1.50.0190.00643.41
8.1.40.0210.00743.53
8.1.30.0190.00643.48
8.1.20.0180.00643.57
8.1.10.0320.00773.13
8.1.00.0100.02472.95
8.0.300.0210.01073.43
8.0.290.0280.00672.38
8.0.280.0330.02073.89
8.0.270.0300.00772.70
8.0.260.0260.00672.79
8.0.250.0210.01172.48
8.0.240.0220.01072.42
8.0.230.0320.01372.45
8.0.220.0300.01072.34
8.0.210.0280.00972.29
8.0.200.0290.01072.42
8.0.190.0260.01372.36
8.0.180.0200.01772.48
8.0.170.0290.01072.39
8.0.160.0250.01372.38
8.0.150.0250.01372.30
8.0.140.0190.01672.26
8.0.130.0550.020121.70
8.0.120.0220.01672.27
8.0.110.0260.01372.27
8.0.100.0170.01772.42
8.0.90.0230.01072.28
8.0.80.0560.02072.31
8.0.70.0190.01672.21
8.0.60.0280.01072.40
8.0.50.0270.01372.38
8.0.30.0590.01972.54
8.0.20.0660.02772.50
8.0.10.0070.02872.48
8.0.00.0560.03872.19
7.4.330.0290.01969.30
7.4.320.0270.01372.06
7.4.300.0290.01071.93
7.4.290.0340.01072.00
7.4.280.0200.02072.00
7.4.270.0370.00771.88
7.4.260.0160.02372.06
7.4.250.0190.01972.01
7.4.240.0210.01571.94
7.4.230.0230.01671.88
7.4.220.0580.04671.98
7.4.210.0490.02972.02
7.4.200.0270.00771.80
7.4.160.0690.03671.90
7.4.150.0590.02572.22
7.4.140.0700.02772.12
7.4.130.0640.05571.82
7.4.120.0460.03672.03
7.4.110.0750.04371.88
7.4.100.0710.02372.07
7.4.90.0600.02072.13
7.4.80.0560.05272.14
7.4.70.0720.03371.91
7.4.60.0690.02772.11
7.4.50.0270.01771.80
7.4.40.0440.03872.16
7.4.30.0790.01371.99
7.4.00.0430.01870.77
7.3.330.0740.016121.65
7.3.320.0660.010121.77
7.3.310.0220.00971.63
7.3.300.0190.01671.91
7.3.290.0260.01371.83
7.3.280.0570.04171.81
7.3.270.0690.02671.86
7.3.260.0570.02671.92
7.3.240.0570.04271.82
7.3.230.0540.03772.14
7.3.210.0810.04271.87
7.3.200.0500.04771.91
7.3.190.0590.02671.89
7.3.180.0420.04272.05
7.3.170.0690.04071.79
7.3.160.0700.02071.95
7.3.10.0860.01778.57
7.3.00.0610.02078.63
7.2.330.0590.03672.02
7.2.320.0620.02672.27
7.2.310.0640.04472.27
7.2.300.0580.02672.25
7.2.290.0550.05571.92
7.2.130.0690.01878.80
7.2.120.1340.03678.39
7.2.110.0850.02278.38
7.2.100.1940.01778.61
7.2.90.1970.01378.59
7.2.80.1380.03579.02
7.2.70.1900.03078.69
7.2.60.1380.01878.87
7.2.50.1980.00778.55
7.2.40.1000.02478.52
7.2.30.0910.02678.74
7.2.20.0690.02878.84
7.2.10.0930.01778.80
7.2.00.1380.01380.04
7.1.250.1020.03077.36
7.1.200.1050.01377.31
7.1.101.0340.01065.42
7.1.70.1280.01078.77
7.1.60.0200.03379.13
7.1.50.0520.01478.59
7.1.00.0200.08784.27
7.0.202.5140.01067.60
7.0.60.0270.04375.74
7.0.50.0270.08773.74
7.0.40.0130.06020.11
7.0.30.0300.07020.23
7.0.20.0370.07020.33
7.0.10.0500.08020.24
7.0.00.0170.09720.14
5.6.280.0200.06785.62
5.6.210.0300.04385.41
5.6.200.0400.09082.87
5.6.190.0370.09784.92
5.6.180.0500.06085.11
5.6.170.0530.08385.13
5.6.160.0170.07785.15
5.6.150.0230.05082.84
5.6.140.0400.10382.88
5.6.130.0330.10782.80
5.6.120.0370.05085.74
5.6.110.0230.08385.73
5.6.100.0170.07385.68
5.6.90.0230.05785.79
5.6.80.0200.05385.08
5.6.70.0270.09085.08
5.5.350.0430.08785.12
5.5.340.0330.10082.66
5.5.330.0300.11084.88
5.5.320.0130.06084.88
5.5.310.0570.09084.87
5.5.300.0330.06782.64
5.5.290.0400.06782.67
5.5.280.0370.10085.44
5.5.270.0470.09085.55
5.5.260.0400.04385.43
5.5.250.0370.09785.27
5.5.240.0400.05084.84
5.4.450.0630.06784.01
5.4.440.0430.09083.98
5.4.430.0400.08384.09
5.4.420.0570.07083.98
5.4.410.0670.08383.94
5.4.400.0930.07783.81
5.4.390.1030.06783.79
5.4.380.1000.08083.79
5.4.370.1000.08383.61
5.4.360.1170.07083.75
5.4.350.0900.06383.44
5.4.340.1270.06383.68
5.4.320.1170.06783.92
5.4.310.0930.07083.90
5.4.300.1100.07783.45
5.4.290.1030.06783.89
5.4.280.0830.08383.79
5.4.270.0930.07383.91
5.4.260.1000.07383.45
5.4.250.1070.06083.75
5.4.240.0870.08383.79
5.4.230.0930.07083.65
5.4.220.0870.08083.44
5.4.210.1000.08383.77
5.4.200.1130.07083.77
5.4.190.1100.07083.67
5.4.180.1070.07383.91
5.4.170.1200.06383.65
5.4.160.0430.07783.77
5.4.150.0500.07383.77
5.4.140.0500.07381.17
5.4.130.0770.07781.05
5.4.120.1200.06080.98
5.4.110.0970.08781.11
5.4.100.0930.08780.86
5.4.90.1130.06381.29
5.4.80.1000.07780.91
5.4.70.1130.07781.30
5.4.60.0830.08080.89
5.4.50.0870.07381.19
5.4.40.1000.06381.29
5.4.30.1000.06381.18
5.4.20.1000.06780.90
5.4.10.0870.08081.16
5.4.00.0970.06780.66

preferences:
67.44 ms | 401 KiB | 5 Q