3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "b"; echo ++$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)
5.4.310.0040.04012.46
5.4.300.0050.03812.46
5.4.290.0070.03912.46
5.4.280.0070.03412.36
5.4.270.0110.05012.36
5.4.260.0070.04212.36
5.4.250.0080.04112.36
5.4.240.0060.04312.36
5.4.230.0130.04412.35
5.4.220.0150.04412.35
5.4.210.0070.03812.35
5.4.200.0080.04312.35
5.4.190.0070.03612.34
5.4.180.0090.03512.35
5.4.170.0090.03412.36
5.4.160.0120.04012.35
5.4.150.0080.03512.35
5.4.140.0070.05412.04
5.4.130.0060.03712.02
5.4.120.0080.03911.98
5.4.110.0050.03711.98
5.4.100.0040.03711.98
5.4.90.0070.04111.98
5.4.80.0060.04211.98
5.4.70.0080.04611.97
5.4.60.0060.04111.97
5.4.50.0030.03811.97
5.4.40.0040.03711.96
5.4.30.0050.03711.96
5.4.20.0090.03311.96
5.4.10.0070.05011.96
5.4.00.0090.03811.45
5.3.280.0080.03712.71
5.3.270.0030.04312.72
5.3.260.0060.04412.72
5.3.250.0060.03712.72
5.3.240.0100.03612.72
5.3.230.0090.03612.70
5.3.220.0040.04112.68
5.3.210.0100.04112.68
5.3.200.0070.03612.68
5.3.190.0050.04012.68
5.3.180.0050.03712.67
5.3.170.0080.03512.67
5.3.160.0020.04012.68
5.3.150.0070.04012.68
5.3.140.0050.03812.66
5.3.130.0060.03812.65
5.3.120.0110.03612.66
5.3.110.0050.03912.66
5.3.100.0060.04612.12
5.3.90.0070.03512.08
5.3.80.0070.03812.07
5.3.70.0070.03712.08
5.3.60.0060.03712.06
5.3.50.0060.03712.00
5.3.40.0060.03612.00
5.3.30.0070.03511.95
5.3.20.0050.03611.72
5.3.10.0070.04111.70
5.3.00.0050.03711.68
5.2.170.0050.0299.18
5.2.160.0040.0299.18
5.2.150.0060.0289.18
5.2.140.0070.0369.18
5.2.130.0030.0329.14
5.2.120.0060.0329.15
5.2.110.0030.0309.14
5.2.100.0050.0399.14
5.2.90.0060.0289.14
5.2.80.0060.0399.14
5.2.70.0100.0299.14
5.2.60.0080.0399.09
5.2.50.0050.0309.06
5.2.40.0080.0279.04
5.2.30.0050.0299.02
5.2.20.0040.0289.00
5.2.10.0040.0358.93
5.2.00.0050.0338.78
5.1.60.0020.0258.07
5.1.50.0020.0268.07
5.1.40.0050.0248.05
5.1.30.0050.0248.40
5.1.20.0030.0368.41
5.1.10.0040.0268.14
5.1.00.0060.0238.14
5.0.50.0030.0216.62
5.0.40.0020.0206.48
5.0.30.0040.0306.29
5.0.20.0020.0206.26
5.0.10.0030.0246.24
5.0.00.0040.0316.23
4.4.90.0030.0194.78
4.4.80.0040.0144.76
4.4.70.0000.0244.76
4.4.60.0040.0144.75
4.4.50.0030.0174.77
4.4.40.0010.0274.70
4.4.30.0040.0144.75
4.4.20.0050.0264.84
4.4.10.0040.0204.85
4.4.00.0020.0304.75
4.3.110.0030.0204.66
4.3.100.0040.0194.66
4.3.90.0040.0154.63
4.3.80.0040.0234.58
4.3.70.0030.0144.63
4.3.60.0010.0164.63
4.3.50.0030.0174.63
4.3.40.0040.0224.54
4.3.30.0020.0163.28
4.3.20.0010.0173.25
4.3.10.0020.0193.21
4.3.00.0230.01015.29

preferences:
138.52 ms | 1394 KiB | 7 Q