3v4l.org

run code in 300+ PHP versions simultaneously
<?php $heading = 'z'; echo ++$heading);

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)
5.4.310.0070.04112.49
5.4.300.0050.03912.50
5.4.290.0070.03912.49
5.4.280.0060.03512.39
5.4.270.0060.03712.39
5.4.260.0100.04212.39
5.4.250.0050.03912.39
5.4.240.0090.05212.39
5.4.230.0090.03612.38
5.4.220.0070.04612.38
5.4.210.0100.03112.38
5.4.200.0080.03612.38
5.4.190.0050.03712.38
5.4.180.0060.03912.38
5.4.170.0140.03812.39
5.4.160.0070.03812.38
5.4.150.0050.03612.38
5.4.140.0070.03612.07
5.4.130.0040.03712.05
5.4.120.0070.04612.01
5.4.110.0050.03612.01
5.4.100.0050.03812.01
5.4.90.0070.03612.01
5.4.80.0050.03912.01
5.4.70.0040.03712.01
5.4.60.0010.03912.01
5.4.50.0070.03512.01
5.4.40.0070.03611.99
5.4.30.0040.03911.99
5.4.20.0040.03811.99
5.4.10.0070.03311.99
5.4.00.0050.03711.48
5.3.280.0060.03812.71
5.3.270.0060.03912.72
5.3.260.0080.05312.72
5.3.250.0060.04712.72
5.3.240.0060.03712.72
5.3.230.0060.03812.71
5.3.220.0070.03712.68
5.3.210.0050.04012.68
5.3.200.0080.04112.68
5.3.190.0050.03812.67
5.3.180.0060.03712.67
5.3.170.0060.04012.67
5.3.160.0070.03712.67
5.3.150.0060.03812.67
5.3.140.0040.03912.66
5.3.130.0060.03912.66
5.3.120.0070.03912.66
5.3.110.0050.03912.66
5.3.100.0070.03612.12
5.3.90.0060.03812.08
5.3.80.0060.03912.07
5.3.70.0100.03312.08
5.3.60.0030.04012.06
5.3.50.0040.04012.00
5.3.40.0070.03712.00
5.3.30.0070.03411.95
5.3.20.0070.03511.72
5.3.10.0050.03511.70
5.3.00.0140.04911.68
5.2.170.0040.0319.18
5.2.160.0040.0379.18
5.2.150.0030.0369.18
5.2.140.0100.0289.18
5.2.130.0040.0329.14
5.2.120.0060.0289.14
5.2.110.0070.0269.14
5.2.100.0030.0339.14
5.2.90.0050.0299.15
5.2.80.0060.0299.14
5.2.70.0040.0329.14
5.2.60.0050.0299.09
5.2.50.0030.0349.06
5.2.40.0070.0339.04
5.2.30.0050.0309.01
5.2.20.0040.0349.00
5.2.10.0040.0288.93
5.2.00.0050.0318.78
5.1.60.0040.0248.06
5.1.50.0050.0258.06
5.1.40.0040.0258.04
5.1.30.0060.0248.40
5.1.20.0040.0288.42
5.1.10.0050.0258.14
5.1.00.0040.0268.14
5.0.50.0060.0276.62
5.0.40.0050.0276.48
5.0.30.0020.0346.29
5.0.20.0030.0196.27
5.0.10.0020.0216.24
5.0.00.0070.0276.23
4.4.90.0020.0174.78
4.4.80.0030.0174.76
4.4.70.0030.0154.76
4.4.60.0020.0164.75
4.4.50.0020.0184.77
4.4.40.0030.0254.71
4.4.30.0030.0174.76
4.4.20.0030.0164.85
4.4.10.0050.0144.85
4.4.00.0020.0264.76
4.3.110.0020.0194.67
4.3.100.0070.0154.66
4.3.90.0030.0144.64
4.3.80.0030.0254.58
4.3.70.0040.0194.63
4.3.60.0050.0134.63
4.3.50.0050.0144.63
4.3.40.0040.0244.54
4.3.30.0030.0153.29
4.3.20.0020.0193.27
4.3.10.0010.0173.22
4.3.00.0100.01715.29

preferences:
139.78 ms | 1386 KiB | 7 Q