3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "b"; echo ++$a;  echo "\n"; $a = "abc"; echo ++$a  . "\n"; $a = "a4"; echo ++$a . "\n"; $a = "a4b1"; echo ++$a  . "\n";

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)
5.4.310.0020.04112.49
5.4.300.0060.03512.50
5.4.290.0040.03812.49
5.4.280.0080.03712.39
5.4.270.0060.03512.39
5.4.260.0090.03512.39
5.4.250.0040.03912.39
5.4.240.0050.03512.39
5.4.230.0070.03612.38
5.4.220.0050.03612.38
5.4.210.0030.03812.38
5.4.200.0040.03912.38
5.4.190.0050.03612.38
5.4.180.0060.04112.38
5.4.170.0070.03412.39
5.4.160.0050.03612.38
5.4.150.0060.03612.38
5.4.140.0090.03412.07
5.4.130.0060.04912.05
5.4.120.0130.04512.02
5.4.110.0080.04912.01
5.4.100.0080.04412.01
5.4.90.0060.03912.01
5.4.80.0070.03812.01
5.4.70.0050.03712.01
5.4.60.0080.03412.00
5.4.50.0050.03612.01
5.4.40.0070.03511.99
5.4.30.0060.03611.99
5.4.20.0060.03411.98
5.4.10.0050.03511.99
5.4.00.0060.04811.48
5.3.280.0060.03712.71
5.3.270.0050.04012.72
5.3.260.0070.04012.72
5.3.250.0070.03912.72
5.3.240.0070.03712.72
5.3.230.0100.04312.71
5.3.220.0080.03612.68
5.3.210.0070.03712.68
5.3.200.0070.03512.68
5.3.190.0090.03712.68
5.3.180.0090.03312.67
5.3.170.0040.04212.67
5.3.160.0070.03712.67
5.3.150.0110.04012.68
5.3.140.0100.03312.66
5.3.130.0050.03912.65
5.3.120.0070.03712.66
5.3.110.0070.03912.66
5.3.100.0030.04412.11
5.3.90.0070.03412.08
5.3.80.0050.04512.07
5.3.70.0060.03512.07
5.3.60.0050.03812.06
5.3.50.0050.03712.00
5.3.40.0090.03412.00
5.3.30.0080.03211.95
5.3.20.0060.03511.73
5.3.10.0070.03411.70
5.3.00.0060.03611.69
5.2.170.0040.0309.18
5.2.160.0050.0289.18
5.2.150.0060.0299.18
5.2.140.0050.0309.17
5.2.130.0050.0299.14
5.2.120.0040.0289.14
5.2.110.0030.0319.14
5.2.100.0030.0309.14
5.2.90.0040.0299.14
5.2.80.0030.0329.14
5.2.70.0050.0299.14
5.2.60.0030.0319.09
5.2.50.0090.0259.06
5.2.40.0020.0309.04
5.2.30.0040.0309.02
5.2.20.0040.0299.00
5.2.10.0020.0308.93
5.2.00.0030.0308.78
5.1.60.0020.0268.07
5.1.50.0030.0258.07
5.1.40.0060.0228.05
5.1.30.0010.0298.40
5.1.20.0040.0278.42
5.1.10.0030.0278.14
5.1.00.0020.0278.14
5.0.50.0050.0196.63
5.0.40.0030.0196.48
5.0.30.0030.0316.29
5.0.20.0050.0186.27
5.0.10.0030.0206.24
5.0.00.0030.0376.23
4.4.90.0030.0234.78
4.4.80.0040.0184.75
4.4.70.0040.0144.75
4.4.60.0020.0154.76
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0030.0154.76
4.4.20.0050.0134.85
4.4.10.0030.0154.85
4.4.00.0020.0264.76
4.3.110.0030.0154.67
4.3.100.0010.0164.66
4.3.90.0030.0144.64
4.3.80.0030.0244.58
4.3.70.0030.0154.63
4.3.60.0020.0164.63
4.3.50.0020.0164.63
4.3.40.0030.0254.54
4.3.30.0030.0153.28
4.3.20.0010.0173.26
4.3.10.0010.0173.22
4.3.00.0200.01015.29

preferences:
141.19 ms | 1386 KiB | 7 Q