3v4l.org

run code in 300+ PHP versions simultaneously
<?php isset(isset('8') + isset('2'))

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)
5.4.350.0080.03112.01
5.4.340.0040.04212.01
5.4.320.0080.04412.49
5.4.310.0060.04112.49
5.4.300.0090.03512.50
5.4.290.0080.03612.49
5.4.280.0100.03312.39
5.4.270.0060.04012.39
5.4.260.0040.04612.39
5.4.250.0070.03712.39
5.4.240.0040.03712.39
5.4.230.0080.03712.38
5.4.220.0030.03812.38
5.4.210.0070.03412.38
5.4.200.0070.03512.38
5.4.190.0050.03812.38
5.4.180.0100.03312.38
5.4.170.0070.03612.38
5.4.160.0110.03312.38
5.4.150.0090.03312.38
5.4.140.0060.03912.07
5.4.130.0060.03512.05
5.4.120.0080.03512.01
5.4.110.0080.03212.01
5.4.100.0060.03712.01
5.4.90.0050.04412.01
5.4.80.0060.05012.01
5.4.70.0060.03312.01
5.4.60.0050.03712.00
5.4.50.0070.03412.01
5.4.40.0070.03711.99
5.4.30.0060.03911.99
5.4.20.0040.03611.99
5.4.10.0070.04212.00
5.4.00.0050.04511.48
5.3.290.0090.03912.80
5.3.280.0060.04312.71
5.3.270.0060.05012.73
5.3.260.0090.03712.72
5.3.250.0070.04012.72
5.3.240.0100.03712.72
5.3.230.0040.03912.71
5.3.220.0060.03612.68
5.3.210.0040.04412.68
5.3.200.0050.04012.68
5.3.190.0050.04012.68
5.3.180.0090.03512.67
5.3.170.0030.03912.67
5.3.160.0070.03512.67
5.3.150.0060.03612.67
5.3.140.0040.03812.66
5.3.130.0060.03812.66
5.3.120.0040.04112.66
5.3.110.0100.03512.65
5.3.100.0060.03712.12
5.3.90.0070.03612.08
5.3.80.0060.03612.07
5.3.70.0030.03812.08
5.3.60.0080.03412.06
5.3.50.0110.03612.00
5.3.40.0060.03712.00
5.3.30.0050.04111.95
5.3.20.0130.03211.73
5.3.10.0080.03211.70
5.3.00.0120.04411.68
5.2.170.0110.0299.18
5.2.160.0090.0309.18
5.2.150.0030.0359.18
5.2.140.0050.0329.18
5.2.130.0050.0349.14
5.2.120.0010.0329.14
5.2.110.0060.0289.14
5.2.100.0060.0319.14
5.2.90.0060.0289.14
5.2.80.0050.0309.14
5.2.70.0050.0319.14
5.2.60.0080.0389.09
5.2.50.0050.0339.05
5.2.40.0040.0309.03
5.2.30.0070.0269.02
5.2.20.0050.0319.01
5.2.10.0080.0488.92
5.2.00.0080.0318.78
5.1.60.0050.0288.07
5.1.50.0040.0248.06
5.1.40.0040.0248.04
5.1.30.0080.0258.39
5.1.20.0110.0208.41
5.1.10.0030.0308.14
5.1.00.0070.0288.14
5.0.50.0060.0186.63
5.0.40.0040.0216.48
5.0.30.0040.0326.29
5.0.20.0080.0176.27
5.0.10.0030.0246.23
5.0.00.0010.0336.23
4.4.90.0020.0164.78
4.4.80.0040.0144.76
4.4.70.0020.0164.76
4.4.60.0050.0144.76
4.4.50.0040.0154.77
4.4.40.0050.0244.71
4.4.30.0020.0174.76
4.4.20.0020.0174.84
4.4.10.0020.0194.85
4.4.00.0040.0264.76
4.3.110.0020.0194.67
4.3.100.0030.0164.67
4.3.90.0040.0144.63
4.3.80.0020.0254.58
4.3.70.0040.0144.63
4.3.60.0020.0174.63
4.3.50.0040.0234.63
4.3.40.0030.0264.54
4.3.30.0030.0213.29
4.3.20.0020.0183.26
4.3.10.0020.0163.22
4.3.00.0170.0236.76

preferences:
142.6 ms | 1394 KiB | 7 Q