3v4l.org

run code in 300+ PHP versions simultaneously
<?php function fib($n){ if ($n == 1 || $n == 2){ return 1; } return fib($n -1) + fib($n - 2); } fib(80)

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)
5.4.320.0070.04912.52
5.4.310.0090.03912.51
5.4.300.0100.03812.52
5.4.290.0080.04112.51
5.4.280.0090.03212.41
5.4.270.0030.03712.41
5.4.260.0050.03812.41
5.4.250.0080.03812.41
5.4.240.0070.04012.41
5.4.230.0080.03612.40
5.4.220.0090.03412.40
5.4.210.0080.03612.40
5.4.200.0070.04712.40
5.4.190.0060.03612.40
5.4.180.0060.03712.40
5.4.170.0090.03412.40
5.4.160.0070.03512.40
5.4.150.0060.03512.39
5.4.140.0030.03912.08
5.4.130.0060.03412.07
5.4.120.0040.04212.03
5.4.110.0050.04212.02
5.4.100.0080.04312.03
5.4.90.0040.03712.02
5.4.80.0050.04412.03
5.4.70.0060.03412.02
5.4.60.0110.03712.03
5.4.50.0060.04012.02
5.4.40.0090.04812.01
5.4.30.0080.04212.01
5.4.20.0030.03712.00
5.4.10.0060.04012.00
5.4.00.0100.04211.50
5.3.290.0060.04512.80
5.3.280.0110.03212.71
5.3.270.0080.03812.73
5.3.260.0070.03812.72
5.3.250.0070.03612.72
5.3.240.0070.03512.72
5.3.230.0070.03612.71
5.3.220.0090.04312.68
5.3.210.0070.03712.68
5.3.200.0060.04812.68
5.3.190.0060.03612.68
5.3.180.0040.03712.68
5.3.170.0070.03512.67
5.3.160.0050.03712.68
5.3.150.0090.04112.68
5.3.140.0080.03812.66
5.3.130.0080.04512.66
5.3.120.0020.04112.66
5.3.110.0060.04412.66
5.3.100.0030.04012.12
5.3.90.0090.03412.11
5.3.80.0070.03412.09
5.3.70.0030.04512.09
5.3.60.0050.03612.08
5.3.50.0100.03112.02
5.3.40.0080.04412.02
5.3.30.0080.03211.98
5.3.20.0030.03811.76
5.3.10.0060.03411.73
5.3.00.0040.03811.71
5.2.170.0040.0319.21
5.2.160.0060.0299.21
5.2.150.0080.0349.21
5.2.140.0010.0349.21
5.2.130.0060.0309.17
5.2.120.0020.0319.18
5.2.110.0040.0299.18
5.2.100.0100.0249.18
5.2.90.0030.0319.18
5.2.80.0090.0339.17
5.2.70.0040.0329.18
5.2.60.0090.0329.13
5.2.50.0040.0319.09
5.2.40.0050.0299.07
5.2.30.0050.0309.05
5.2.20.0040.0299.04
5.2.10.0020.0308.95
5.2.00.0030.0318.80
5.1.60.0040.0248.08
5.1.50.0030.0278.08
5.1.40.0030.0268.06
5.1.30.0050.0258.42
5.1.20.0060.0248.43
5.1.10.0010.0418.16
5.1.00.0070.0268.16
5.0.50.0020.0226.64
5.0.40.0020.0206.51
5.0.30.0020.0366.31
5.0.20.0050.0256.28
5.0.10.0020.0236.26
5.0.00.0020.0326.25
4.4.90.0030.0214.78
4.4.80.0050.0174.76
4.4.70.0030.0214.76
4.4.60.0020.0154.76
4.4.50.0060.0234.77
4.4.40.0030.0254.70
4.4.30.0020.0154.76
4.4.20.0040.0144.84
4.4.10.0010.0234.85
4.4.00.0040.0234.76
4.3.110.0030.0254.67
4.3.100.0010.0164.66
4.3.90.0030.0154.63
4.3.80.0050.0264.58
4.3.70.0030.0194.63
4.3.60.0020.0204.63
4.3.50.0030.0154.63
4.3.40.0030.0244.54
4.3.30.0010.0173.30
4.3.20.0000.0173.27
4.3.10.0000.0173.24
4.3.00.0030.01719.45

preferences:
138.77 ms | 1394 KiB | 7 Q