3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=2; $b=3; define("CCC","4"); $c=CCC; $b=$b*2; $d=$a+$b+$c; $f=$a.$b.$c; echo $d;</br> echo $f; ?>

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)
7.0.10.0070.04020.30
7.0.00.0000.05320.16
5.6.160.0100.05020.46
5.6.150.0070.03718.18
5.6.140.0070.07318.16
5.6.130.0070.04018.17
5.6.120.0070.07721.02
5.6.110.0030.07321.08
5.6.100.0070.06320.88
5.6.90.0130.08321.00
5.6.80.0100.07020.53
5.5.300.0100.08018.02
5.5.290.0100.07718.07
5.5.280.0000.04320.65
5.5.270.0030.05020.92
5.5.260.0100.08020.64
5.5.250.0070.08720.57
5.5.240.0330.06720.32

preferences:
146.05 ms | 1398 KiB | 7 Q