3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null++null; 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)
5.4.320.0070.03512.50
5.4.310.0060.03712.50
5.4.300.0080.03412.50
5.4.290.0080.03712.49
5.4.280.0070.03512.39
5.4.270.0040.03912.39
5.4.260.0040.03812.39
5.4.250.0030.04012.39
5.4.240.0080.03312.39
5.4.230.0050.03712.38
5.4.220.0090.03612.38
5.4.210.0060.03512.38
5.4.200.0070.03712.38
5.4.190.0060.03612.38
5.4.180.0040.03812.38
5.4.170.0100.03412.38
5.4.160.0100.05412.38
5.4.150.0080.04412.38
5.4.140.0080.05312.07
5.4.130.0080.04612.05
5.4.120.0040.03912.01
5.4.110.0060.05112.01
5.4.100.0060.04712.01
5.4.90.0110.04112.01
5.4.80.0090.04212.01
5.4.70.0040.03712.01
5.4.60.0090.03812.01
5.4.50.0090.05012.01
5.4.40.0130.06512.00
5.4.30.0130.05712.00
5.4.20.0050.05411.99
5.4.10.0100.03911.99
5.4.00.0070.04011.48
5.3.290.0080.04312.80
5.3.280.0100.04212.71
5.3.270.0110.04512.73
5.3.260.0210.07412.72
5.3.250.0100.05012.72
5.3.240.0070.05312.72
5.3.230.0090.04912.71
5.3.220.0090.04112.68
5.3.210.0100.05112.68
5.3.200.0100.04212.68
5.3.190.0100.04312.68
5.3.180.0020.04712.68
5.3.170.0080.03812.67
5.3.160.0080.03712.67
5.3.150.0130.03812.68
5.3.140.0050.04512.66
5.3.130.0110.04512.66
5.3.120.0100.04812.66
5.3.110.0060.04712.66
5.3.100.0100.03812.12
5.3.90.0110.04312.08
5.3.80.0100.04612.08
5.3.70.0020.04212.07
5.3.60.0070.04212.07
5.3.50.0040.04212.00
5.3.40.0040.04212.00
5.3.30.0050.03911.95
5.3.20.0080.04811.72
5.3.10.0060.04411.70
5.3.00.0050.04211.68
5.2.170.0080.0349.18
5.2.160.0050.0519.18
5.2.150.0050.0429.18
5.2.140.0060.0489.18
5.2.130.0050.0419.14
5.2.120.0070.0379.14
5.2.110.0060.0369.14
5.2.100.0050.0389.14
5.2.90.0050.0339.14
5.2.80.0080.0349.14
5.2.70.0090.0369.14
5.2.60.0050.0439.09
5.2.50.0110.0359.06
5.2.40.0060.0339.04
5.2.30.0060.0349.01
5.2.20.0060.0299.00
5.2.10.0090.0268.93
5.2.00.0090.0298.78
5.1.60.0030.0298.06
5.1.50.0060.0288.06
5.1.40.0030.0268.05
5.1.30.0050.0298.40
5.1.20.0050.0288.41
5.1.10.0030.0278.14
5.1.00.0040.0278.14
5.0.50.0030.0206.62
5.0.40.0040.0196.48
5.0.30.0020.0336.29
5.0.20.0020.0216.27
5.0.10.0030.0226.24
5.0.00.0050.0316.23
4.4.90.0040.0174.78
4.4.80.0040.0214.76
4.4.70.0040.0174.75
4.4.60.0050.0134.75
4.4.50.0020.0164.77
4.4.40.0030.0254.70
4.4.30.0010.0194.76
4.4.20.0020.0154.84
4.4.10.0020.0214.85
4.4.00.0010.0274.76
4.3.110.0020.0164.67
4.3.100.0020.0164.67
4.3.90.0040.0134.64
4.3.80.0010.0264.58
4.3.70.0040.0134.63
4.3.60.0020.0144.63
4.3.50.0050.0134.63
4.3.40.0010.0254.54
4.3.30.0020.0163.29
4.3.20.0020.0163.26
4.3.10.0010.0163.22
4.3.00.0030.01715.68

preferences:
281.35 ms | 1398 KiB | 8 Q