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)
5.4.310.0080.03512.49
5.4.300.0110.04312.49
5.4.290.0070.04012.49
5.4.280.0080.03312.39
5.4.270.0050.03712.39
5.4.260.0080.03512.39
5.4.250.0050.03812.39
5.4.240.0060.03512.39
5.4.230.0070.03612.38
5.4.220.0090.03512.38
5.4.210.0030.03812.38
5.4.200.0030.04112.38
5.4.190.0060.03612.38
5.4.180.0070.03512.38
5.4.170.0050.03912.38
5.4.160.0060.03712.38
5.4.150.0030.04012.38
5.4.140.0060.04212.07
5.4.130.0070.03512.05
5.4.120.0050.03612.02
5.4.110.0040.03712.01
5.4.100.0030.03812.01
5.4.90.0050.03712.01
5.4.80.0060.03612.01
5.4.70.0060.03412.00
5.4.60.0040.03612.01
5.4.50.0070.03412.01
5.4.40.0070.03412.00
5.4.30.0050.03611.99
5.4.20.0080.03911.98
5.4.10.0070.03311.99
5.4.00.0120.04111.49
5.3.280.0040.04612.71
5.3.270.0050.03912.73
5.3.260.0070.03812.72
5.3.250.0050.03912.72
5.3.240.0050.04012.72
5.3.230.0080.04112.71
5.3.220.0090.03412.68
5.3.210.0040.04112.68
5.3.200.0020.04112.68
5.3.190.0080.03512.68
5.3.180.0090.03312.67
5.3.170.0080.03512.67
5.3.160.0060.03712.67
5.3.150.0080.03612.67
5.3.140.0060.03812.66
5.3.130.0040.04012.66
5.3.120.0070.04412.66
5.3.110.0050.04112.66
5.3.100.0130.03112.12
5.3.90.0050.03812.08
5.3.80.0060.03512.07
5.3.70.0010.04112.07
5.3.60.0030.04012.06
5.3.50.0070.03512.00
5.3.40.0050.03812.00
5.3.30.0080.04411.95
5.3.20.0060.03611.72
5.3.10.0070.03511.70
5.3.00.0080.04511.68
5.2.170.0050.0309.18
5.2.160.0020.0329.18
5.2.150.0060.0299.18
5.2.140.0040.0319.18
5.2.130.0070.0369.14
5.2.120.0090.0379.14
5.2.110.0040.0379.15
5.2.100.0040.0289.14
5.2.90.0070.0279.14
5.2.80.0050.0309.14
5.2.70.0040.0319.14
5.2.60.0040.0319.09
5.2.50.0050.0299.06
5.2.40.0020.0339.03
5.2.30.0070.0379.02
5.2.20.0050.0289.00
5.2.10.0060.0418.93
5.2.00.0050.0358.78
5.1.60.0050.0228.07
5.1.50.0060.0228.06
5.1.40.0050.0258.05
5.1.30.0040.0268.40
5.1.20.0030.0278.42
5.1.10.0050.0258.14
5.1.00.0080.0238.14
5.0.50.0050.0216.62
5.0.40.0070.0246.48
5.0.30.0080.0366.29
5.0.20.0070.0246.27
5.0.10.0050.0246.24
5.0.00.0060.0306.23
4.4.90.0010.0174.78
4.4.80.0030.0154.76
4.4.70.0020.0174.76
4.4.60.0030.0154.75
4.4.50.0010.0174.77
4.4.40.0020.0274.70
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0040.0184.85
4.4.00.0030.0254.76
4.3.110.0040.0144.67
4.3.100.0020.0164.66
4.3.90.0030.0144.63
4.3.80.0010.0264.58
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0030.0154.63
4.3.40.0010.0254.54
4.3.30.0020.0163.29
4.3.20.0010.0173.27
4.3.10.0020.0153.21
4.3.00.0130.02315.29

preferences:
140.07 ms | 1394 KiB | 7 Q