3v4l.org

run code in 300+ PHP versions simultaneously
<?php function fib ($n) { if ($n == 0) { return 0; } if ($n == 1) { return 1; } return fib( $n - 1 ) + fib( $n - 2 ); } print fib(40);

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)
8.3.40.0031.99918.39
8.3.30.0032.00118.92
8.3.20.0002.00320.16
8.3.10.0031.99921.71
8.3.00.0131.98917.79
8.2.170.0131.99122.96
8.2.160.0032.00320.39
8.2.150.0071.99524.18
8.2.140.0032.00024.66
8.2.130.0031.99826.16
8.2.120.0031.99919.64
8.2.110.0071.98519.12
8.2.100.0032.00017.59
8.2.90.0002.00317.72
8.2.80.0002.00317.97
8.2.70.0002.00417.46
8.2.60.0071.99417.80
8.2.50.0002.00318.07
8.2.40.0032.00918.03
8.2.30.0002.00217.96
8.2.20.0071.99717.58
8.2.10.0071.99417.88
8.2.00.0031.99917.75
8.1.270.0071.99620.40
8.1.260.0032.00026.35
8.1.250.0031.99828.09
8.1.240.0031.99922.55
8.1.230.0131.98720.91
8.1.220.0002.00217.74
8.1.210.0031.99518.85
8.1.200.0071.99917.10
8.1.190.0032.00017.13
8.1.180.0071.99518.10
8.1.170.0002.00420.28
8.1.160.0002.00222.13
8.1.150.0031.99918.81
8.1.140.0031.99817.46
8.1.130.0002.00217.84
8.1.120.0002.00417.36
8.1.110.0032.00017.52
8.1.100.0002.00317.52
8.1.90.0031.99817.38
8.1.80.0071.99517.36
8.1.70.0002.00317.37
8.1.60.0032.00017.61
8.1.50.0032.00017.51
8.1.40.0101.99317.47
8.1.30.0071.99717.61
8.1.20.0032.00017.55
8.1.10.0071.99717.45
8.1.00.0071.99917.25
8.0.300.0002.00819.73
8.0.290.0071.99416.58
8.0.280.0002.00418.20
8.0.270.0031.99917.08
8.0.260.0001.99916.96
8.0.250.0071.99416.68
8.0.240.0031.99816.67
8.0.230.0002.00416.68
8.0.220.0031.99816.70
8.0.210.0002.00216.70
8.0.200.0002.00216.73
8.0.190.0032.00016.77
8.0.180.0002.00216.77
8.0.170.0002.00216.78
8.0.160.0002.00316.76
8.0.150.0002.00116.67
8.0.140.0032.00016.65
8.0.130.0031.99813.16
8.0.120.0002.00416.71
8.0.110.0032.00016.66
8.0.100.0032.00116.60
8.0.90.0002.00216.55
8.0.80.0131.98716.64
8.0.70.0071.99716.69
8.0.60.0031.99816.57
8.0.50.0101.99216.77
8.0.30.0171.98816.65
8.0.20.0081.99417.40
8.0.10.0201.98016.63
8.0.00.0161.99116.57
7.4.330.0031.99915.03
7.4.320.0071.99416.41
7.4.300.0002.00216.34
7.4.290.0031.99816.43
7.4.280.0071.99416.44
7.4.270.0031.99916.39
7.4.260.0101.99416.45
7.4.250.0071.99516.32
7.4.240.0022.00016.38
7.4.230.0002.00116.37
7.4.220.0131.98916.44
7.4.210.0131.99316.43
7.4.200.0002.00216.54
7.4.160.0201.98416.35
7.4.150.0201.98517.40
7.4.140.0131.98617.86
7.4.130.0131.98616.38
7.4.120.0291.83016.40
7.4.110.0202.37016.51
7.4.100.0102.46316.34
7.4.90.0102.45016.41
7.4.80.0132.45319.39
7.4.70.0072.46016.15
7.4.60.0202.33716.36
7.4.50.0072.49116.41
7.4.40.0202.45116.46
7.4.30.0092.46016.48
7.4.00.0072.48915.01
7.3.330.0431.95213.31
7.3.320.0101.99013.27
7.3.310.0071.99616.23
7.3.300.0002.00216.04
7.3.290.0002.00416.25
7.3.280.0211.96816.21
7.3.270.0261.97117.40
7.3.260.0131.98616.19
7.3.250.0151.99116.21
7.3.240.0091.99716.57
7.3.230.0192.40916.39
7.3.210.0232.43116.27
7.3.200.0132.44419.39
7.3.190.0102.47216.46
7.3.180.0102.43016.27
7.3.170.0162.37816.29
7.3.160.0132.42616.28
7.2.330.0362.12616.24
7.2.320.0072.44216.59
7.2.310.0232.45916.09
7.2.300.0192.42716.26
7.2.290.0062.42516.33
7.2.00.0102.49119.00
7.1.100.0032.49817.90
7.1.70.0032.49817.11
7.1.60.0072.49519.46
7.1.50.0102.49116.77
7.1.00.0102.49022.36
7.0.200.0072.49416.76
7.0.140.0102.49022.01
7.0.60.0032.49719.92
7.0.50.0132.48717.82
7.0.40.0002.50019.89
7.0.30.0232.47719.88
7.0.20.0272.47319.83
7.0.10.0032.49719.88
7.0.00.0132.48719.84
5.6.280.0072.49321.04
5.6.210.0032.49720.78
5.6.200.0072.47718.11
5.6.190.0032.47720.50
5.6.180.0102.49020.45
5.6.170.0302.47020.43
5.6.160.0032.49720.33
5.6.150.0002.50018.15
5.6.140.0072.49318.15
5.6.130.0032.49718.15
5.6.120.0002.50021.16
5.6.110.0102.49021.13
5.6.100.0132.48721.10
5.6.90.0072.49321.02
5.6.80.0132.48720.44
5.6.70.4172.08320.40
5.5.350.0172.48320.38
5.5.340.0072.49317.94
5.5.330.0002.50020.19
5.5.320.3602.14020.06
5.5.310.0272.47320.21
5.5.300.0002.50017.97
5.5.290.0102.49018.06
5.5.280.0132.48720.89
5.5.270.0102.49020.90
5.5.260.0002.50020.66
5.5.250.0132.48720.70
5.5.240.0232.47720.30
5.4.450.0302.46719.39
5.4.440.0002.49719.51
5.4.430.0472.45019.34
5.4.420.0232.47319.36
5.4.410.0302.46719.23
5.4.400.0202.47318.80
5.4.390.0232.47318.59
5.4.380.0232.47018.69
5.4.370.0102.48318.73
5.4.360.0102.48718.73
5.4.350.0232.47318.75
5.4.340.0172.48318.59
5.4.320.0232.47018.50
5.4.310.0232.47718.71
5.4.300.0132.47318.73
5.4.290.0202.47718.69
5.4.280.0132.48018.48
5.4.270.0232.47018.54
5.4.260.0232.46718.71
5.4.250.0202.47318.48
5.4.240.0272.46718.68
5.4.230.0132.48718.71
5.4.220.0232.46318.75
5.4.210.0172.48318.75
5.4.200.0072.49316.71
5.4.190.0132.48718.75
5.4.180.0172.47318.75
5.4.170.0132.48018.71
5.4.160.0202.47318.52
5.4.150.0232.44318.79
5.4.140.0272.46016.28
5.4.130.0272.45316.21
5.4.120.0102.48716.31
5.4.110.0202.47716.18
5.4.100.0202.48716.45
5.4.90.0702.40016.40
5.4.80.0702.41716.19
5.4.70.1132.38016.20
5.4.60.1032.39316.21
5.4.50.0872.41016.19
5.4.40.0672.42316.19
5.4.30.0872.40716.20
5.4.20.0672.40316.17
5.4.10.0802.28316.37

preferences:
41.58 ms | 400 KiB | 5 Q