3v4l.org

run code in 300+ PHP versions simultaneously
<?php function factorial(&$number) { return $number*2; } $a echo factorial($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)
5.4.320.0060.04512.52
5.4.310.0060.03912.52
5.4.300.0070.04012.52
5.4.290.0050.04112.52
5.4.280.0110.03812.41
5.4.270.0100.03712.41
5.4.260.0130.04812.41
5.4.250.0070.04212.41
5.4.240.0070.03612.41
5.4.230.0090.03512.41
5.4.220.0050.03812.41
5.4.210.0070.03412.40
5.4.200.0090.03712.41
5.4.190.0090.03712.40
5.4.180.0030.04512.40
5.4.170.0050.03712.41
5.4.160.0060.04112.40
5.4.150.0120.03612.40
5.4.140.0070.04412.09
5.4.130.0060.04112.07
5.4.120.0080.03312.04
5.4.110.0040.04412.03
5.4.100.0060.04412.03
5.4.90.0060.04112.04
5.4.80.0070.04312.03
5.4.70.0080.03112.03
5.4.60.0100.03612.03
5.4.50.0060.04812.03
5.4.40.0070.03412.02
5.4.30.0060.03912.01
5.4.20.0040.03612.01
5.4.10.0080.03912.01
5.4.00.0080.03811.50
5.3.290.0060.03912.80
5.3.280.0060.03812.71
5.3.270.0130.04012.72
5.3.260.0060.05012.72
5.3.250.0080.03912.72
5.3.240.0080.04412.72
5.3.230.0080.03812.71
5.3.220.0030.03812.68
5.3.210.0050.04412.68
5.3.200.0040.03712.68
5.3.190.0090.04612.68
5.3.180.0100.03812.68
5.3.170.0060.04512.67
5.3.160.0070.04912.67
5.3.150.0070.04012.68
5.3.140.0090.04412.66
5.3.130.0040.04112.66
5.3.120.0080.03812.65
5.3.110.0110.04412.66
5.3.100.0090.04012.12
5.3.90.0050.03812.10
5.3.80.0060.03612.09
5.3.70.0050.03712.09
5.3.60.0090.03412.08
5.3.50.0080.03512.02
5.3.40.0100.04312.02
5.3.30.0070.03711.98
5.3.20.0060.03611.76
5.3.10.0070.03411.73
5.3.00.0060.03611.71
5.2.170.0080.0349.21
5.2.160.0050.0379.21
5.2.150.0090.0379.21
5.2.140.0070.0399.21
5.2.130.0060.0349.18
5.2.120.0060.0349.18
5.2.110.0080.0309.18
5.2.100.0060.0369.18
5.2.90.0060.0299.18
5.2.80.0060.0289.17
5.2.70.0080.0279.18
5.2.60.0020.0329.13
5.2.50.0030.0319.10
5.2.40.0020.0369.07
5.2.30.0070.0379.05
5.2.20.0030.0319.04
5.2.10.0030.0308.95
5.2.00.0050.0318.80
5.1.60.0040.0328.09
5.1.50.0050.0268.08
5.1.40.0060.0278.07
5.1.30.0070.0288.42
5.1.20.0070.0278.44
5.1.10.0030.0348.16
5.1.00.0100.0278.16
5.0.50.0080.0216.64
5.0.40.0060.0206.50
5.0.30.0000.0376.31
5.0.20.0030.0256.28
5.0.10.0040.0286.25
5.0.00.0030.0316.25
4.4.90.0010.0184.78
4.4.80.0020.0174.75
4.4.70.0040.0194.76
4.4.60.0030.0154.75
4.4.50.0020.0164.77
4.4.40.0030.0244.71
4.4.30.0030.0154.76
4.4.20.0020.0164.84
4.4.10.0040.0144.85
4.4.00.0000.0274.76
4.3.110.0040.0144.67
4.3.100.0010.0174.67
4.3.90.0030.0174.64
4.3.80.0030.0284.58
4.3.70.0050.0184.63
4.3.60.0030.0184.63
4.3.50.0020.0184.63
4.3.40.0070.0234.54
4.3.30.0030.0183.30
4.3.20.0010.0183.27
4.3.10.0030.0193.23
4.3.00.0030.02716.39

preferences:
142.46 ms | 1398 KiB | 7 Q