3v4l.org

run code in 300+ PHP versions simultaneously
<?php function factorial(&$number) { return $number*2; } $a=5; print factorial($a+1); echo $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)
8.3.60.0100.01018.68
8.3.50.0100.00821.95
8.3.40.0060.01518.81
8.3.30.0080.00819.23
8.3.20.0070.00720.25
8.3.10.0080.00020.64
8.3.00.0040.00417.50
8.2.180.0040.01116.50
8.2.170.0090.00922.96
8.2.160.0100.00320.53
8.2.150.0100.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00422.11
8.2.110.0030.00622.26
8.2.100.0040.00418.91
8.1.280.0110.00725.92
8.1.270.0050.00323.96
8.1.260.0000.00826.35
8.1.250.0060.00328.09
8.1.240.0040.00418.62
8.1.230.0000.00918.47
5.4.320.0050.03712.51
5.4.310.0070.03612.51
5.4.300.0040.03812.52
5.4.290.0040.03912.52
5.4.280.0090.03212.41
5.4.270.0030.03912.41
5.4.260.0080.03512.41
5.4.250.0070.03612.41
5.4.240.0090.03312.41
5.4.230.0050.03912.40
5.4.220.0050.03812.40
5.4.210.0050.03712.40
5.4.200.0080.03512.40
5.4.190.0070.03412.40
5.4.180.0040.03812.39
5.4.170.0070.03612.41
5.4.160.0050.03612.40
5.4.150.0030.03912.39
5.4.140.0080.03512.08
5.4.130.0060.03612.07
5.4.120.0070.04112.02
5.4.110.0070.03512.02
5.4.100.0040.03712.02
5.4.90.0050.04012.02
5.4.80.0060.03712.02
5.4.70.0040.03612.02
5.4.60.0060.03412.02
5.4.50.0090.03212.02
5.4.40.0070.03312.00
5.4.30.0080.03712.00
5.4.20.0090.03412.01
5.4.10.0110.03012.00
5.4.00.0090.04811.49
5.3.290.0080.05512.80
5.3.280.0080.05012.71
5.3.270.0070.05112.72
5.3.260.0080.05212.72
5.3.250.0100.04912.72
5.3.240.0110.04812.71
5.3.230.0060.04012.71
5.3.220.0070.03812.68
5.3.210.0030.04212.68
5.3.200.0080.03412.68
5.3.190.0060.03812.68
5.3.180.0090.03412.67
5.3.170.0050.03712.67
5.3.160.0030.04212.68
5.3.150.0070.03912.67
5.3.140.0110.03112.66
5.3.130.0070.03812.66
5.3.120.0100.03412.66
5.3.110.0040.04112.66
5.3.100.0060.03712.13
5.3.90.0070.03512.11
5.3.80.0100.04312.09
5.3.70.0040.04012.09
5.3.60.0090.03312.08
5.3.50.0050.03712.02
5.3.40.0040.03912.02
5.3.30.0090.03111.98
5.3.20.0080.03311.76
5.3.10.0050.03611.73
5.3.00.0030.04011.71
5.2.170.0050.0339.21
5.2.160.0070.0279.21
5.2.150.0040.0329.21
5.2.140.0030.0329.21
5.2.130.0030.0309.17
5.2.120.0060.0279.17
5.2.110.0040.0299.17
5.2.100.0070.0269.17
5.2.90.0050.0349.17
5.2.80.0050.0439.17
5.2.70.0090.0379.17
5.2.60.0060.0369.13
5.2.50.0050.0319.09
5.2.40.0050.0299.07
5.2.30.0030.0319.04
5.2.20.0050.0299.04
5.2.10.0070.0268.95
5.2.00.0070.0308.80
5.1.60.0080.0208.09
5.1.50.0050.0248.08
5.1.40.0040.0248.06
5.1.30.0070.0238.42
5.1.20.0050.0268.43
5.1.10.0050.0258.16
5.1.00.0090.0218.16
5.0.50.0030.0216.64
5.0.40.0030.0196.50
5.0.30.0030.0316.30
5.0.20.0040.0186.28
5.0.10.0030.0196.26
5.0.00.0040.0286.25
4.4.90.0030.0154.77
4.4.80.0080.0094.76
4.4.70.0040.0134.75
4.4.60.0030.0154.76
4.4.50.0030.0154.77
4.4.40.0040.0234.71
4.4.30.0020.0164.76
4.4.20.0020.0164.84
4.4.10.0010.0174.85
4.4.00.0040.0234.76
4.3.110.0040.0144.67
4.3.100.0020.0154.66
4.3.90.0030.0144.63
4.3.80.0030.0234.58
4.3.70.0040.0134.63
4.3.60.0040.0134.63
4.3.50.0050.0134.63
4.3.40.0020.0244.54
4.3.30.0030.0153.30
4.3.20.0030.0173.27
4.3.10.0010.0173.24
4.3.00.0130.01316.39

preferences:
35.67 ms | 401 KiB | 5 Q