3v4l.org

run code in 300+ PHP versions simultaneously
<?php public function foo(\DateTime $a, \DateTime $b = null) { return; } foo(null, null);

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)
5.4.340.0040.03912.01
5.4.320.0040.03912.50
5.4.310.0120.04712.49
5.4.300.0080.03912.50
5.4.290.0120.03612.49
5.4.280.0060.04612.39
5.4.270.0130.04412.39
5.4.260.0040.04012.39
5.4.250.0050.04412.39
5.4.240.0100.03412.39
5.4.230.0070.04312.38
5.4.220.0060.04112.38
5.4.210.0090.03912.38
5.4.200.0060.04212.38
5.4.190.0050.03812.38
5.4.180.0060.03912.38
5.4.170.0070.03912.38
5.4.160.0030.04212.38
5.4.150.0050.04512.38
5.4.140.0090.04612.07
5.4.130.0070.03312.05
5.4.120.0040.03612.01
5.4.110.0050.04012.01
5.4.100.0020.04012.02
5.4.90.0090.03912.01
5.4.80.0040.04712.01
5.4.70.0130.04212.00
5.4.60.0040.04112.01
5.4.50.0070.03812.01
5.4.40.0070.03512.00
5.4.30.0080.03511.99
5.4.20.0110.03711.99
5.4.10.0110.04111.99
5.4.00.0080.03611.48
5.3.290.0070.04012.80
5.3.280.0110.03712.71
5.3.270.0030.04312.72
5.3.260.0080.03712.72
5.3.250.0120.03712.72
5.3.240.0080.03912.72
5.3.230.0070.03612.71
5.3.220.0080.03612.68
5.3.210.0060.03812.68
5.3.200.0050.03812.68
5.3.190.0040.03912.68
5.3.180.0030.03812.67
5.3.170.0070.03812.66
5.3.160.0050.03712.67
5.3.150.0050.03712.67
5.3.140.0100.03312.66
5.3.130.0080.03612.66
5.3.120.0040.04012.66
5.3.110.0050.03912.65
5.3.100.0040.03912.12
5.3.90.0060.03612.08
5.3.80.0060.03612.08
5.3.70.0080.03712.07
5.3.60.0110.03912.06
5.3.50.0100.03612.00
5.3.40.0060.03612.00
5.3.30.0080.03911.95
5.3.20.0090.03111.73
5.3.10.0110.02811.70
5.3.00.0050.03611.68
5.2.170.0040.0309.18
5.2.160.0070.0389.18
5.2.150.0070.0279.18
5.2.140.0090.0279.18
5.2.130.0090.0339.14
5.2.120.0070.0299.14
5.2.110.0030.0369.15
5.2.100.0050.0279.14
5.2.90.0050.0329.14
5.2.80.0060.0389.14
5.2.70.0040.0369.14
5.2.60.0050.0319.09
5.2.50.0070.0299.06
5.2.40.0040.0289.04
5.2.30.0040.0329.01
5.2.20.0040.0299.00
5.2.10.0050.0278.93
5.2.00.0060.0278.78
5.1.60.0060.0288.07
5.1.50.0090.0238.06
5.1.40.0050.0288.04
5.1.30.0060.0288.40
5.1.20.0050.0268.42
5.1.10.0030.0298.14
5.1.00.0050.0258.14
5.0.50.0070.0176.63
5.0.40.0040.0186.48
5.0.30.0050.0306.29
5.0.20.0030.0206.26
5.0.10.0010.0226.24
5.0.00.0040.0316.23
4.4.90.0030.0154.78
4.4.80.0050.0124.76
4.4.70.0030.0164.75
4.4.60.0020.0164.76
4.4.50.0010.0174.77
4.4.40.0020.0254.71
4.4.30.0040.0144.76
4.4.20.0010.0224.84
4.4.10.0010.0214.85
4.4.00.0040.0244.76
4.3.110.0040.0194.67
4.3.100.0050.0144.66
4.3.90.0040.0184.63
4.3.80.0020.0274.58
4.3.70.0040.0134.63
4.3.60.0020.0164.63
4.3.50.0020.0164.62
4.3.40.0040.0234.54
4.3.30.0040.0143.28
4.3.20.0020.0163.26
4.3.10.0010.0173.21
4.3.00.0030.01712.08

preferences:
137.95 ms | 1394 KiB | 7 Q