3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=8; function fibonacci ($n) { if ($n == 0) { return 0; } else if ($n == 1) { return 1; } else { return fibonacci( $n - 1 ) + fibonacci( $n - 2 ); } } echo "the" . $a "term is " .fibonacci($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)
5.4.340.0040.03512.03
5.4.320.0060.03512.52
5.4.310.0070.04412.52
5.4.300.0050.03612.52
5.4.290.0050.03712.52
5.4.280.0050.03812.41
5.4.270.0050.03812.41
5.4.260.0040.04012.41
5.4.250.0070.03512.41
5.4.240.0120.03012.42
5.4.230.0030.04712.41
5.4.220.0070.03812.41
5.4.210.0040.03712.41
5.4.200.0060.03812.40
5.4.190.0070.03412.40
5.4.180.0060.03512.40
5.4.170.0030.03812.41
5.4.160.0080.04012.40
5.4.150.0050.03712.39
5.4.140.0050.04212.09
5.4.130.0050.04212.07
5.4.120.0040.03512.03
5.4.110.0030.03712.03
5.4.100.0060.04012.03
5.4.90.0090.03212.03
5.4.80.0050.03712.03
5.4.70.0080.04012.03
5.4.60.0050.03512.03
5.4.50.0080.03312.03
5.4.40.0070.03912.01
5.4.30.0070.03312.01
5.4.20.0090.03912.00
5.4.10.0050.04112.02
5.4.00.0090.03611.50
5.3.290.0100.03912.80
5.3.280.0070.03712.71
5.3.270.0120.04112.72
5.3.260.0090.04212.72
5.3.250.0080.03512.71
5.3.240.0070.03512.72
5.3.230.0090.03812.71
5.3.220.0070.03512.68
5.3.210.0070.04012.68
5.3.200.0060.04012.68
5.3.190.0070.03712.68
5.3.180.0070.04212.68
5.3.170.0070.03612.67
5.3.160.0050.03712.67
5.3.150.0090.03512.67
5.3.140.0080.03412.66
5.3.130.0060.04012.66
5.3.120.0090.03712.66
5.3.110.0070.03712.66
5.3.100.0080.03512.13
5.3.90.0060.03512.10
5.3.80.0080.03412.09
5.3.70.0070.03412.09
5.3.60.0050.03712.08
5.3.50.0070.03812.02
5.3.40.0080.03412.02
5.3.30.0070.03411.98
5.3.20.0060.03611.77
5.3.10.0070.03811.73
5.3.00.0030.04411.72
5.2.170.0050.0309.21
5.2.160.0050.0349.22
5.2.150.0030.0329.22
5.2.140.0040.0319.21
5.2.130.0060.0279.18
5.2.120.0030.0309.18
5.2.110.0070.0269.18
5.2.100.0020.0319.18
5.2.90.0050.0289.18
5.2.80.0040.0319.18
5.2.70.0040.0319.18
5.2.60.0080.0279.13
5.2.50.0080.0279.10
5.2.40.0060.0299.08
5.2.30.0060.0309.05
5.2.20.0050.0289.04
5.2.10.0090.0308.94
5.2.00.0040.0298.80
5.1.60.0050.0228.09
5.1.50.0040.0268.08
5.1.40.0080.0238.07
5.1.30.0030.0288.42
5.1.20.0050.0258.43
5.1.10.0030.0318.17
5.1.00.0030.0268.16
5.0.50.0050.0236.64
5.0.40.0030.0226.50
5.0.30.0050.0346.31
5.0.20.0050.0226.28
5.0.10.0030.0216.26
5.0.00.0040.0326.25
4.4.90.0020.0164.77
4.4.80.0050.0134.75
4.4.70.0020.0174.76
4.4.60.0030.0154.75
4.4.50.0040.0214.77
4.4.40.0040.0344.71
4.4.30.0040.0144.76
4.4.20.0030.0154.84
4.4.10.0050.0194.85
4.4.00.0020.0284.76
4.3.110.0050.0144.66
4.3.100.0030.0144.66
4.3.90.0000.0174.64
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0020.0154.63
4.3.50.0020.0164.63
4.3.40.0030.0244.53
4.3.30.0040.0193.30
4.3.20.0020.0183.29
4.3.10.0050.0173.24
4.3.00.0070.01313.71

preferences:
142.5 ms | 1386 KiB | 7 Q