3v4l.org

run code in 300+ PHP versions simultaneously
<?php $y[0] = 'Good'; $y[1] = ' morning!'; echo "${y[0]}$[y[1]}"; echo ${y[0]}${y[1]};

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)
7.0.10.0070.04020.20
7.0.00.0070.06320.23
5.6.160.0030.04720.44
5.6.150.0070.03718.14
5.6.140.0030.05318.15
5.6.130.0070.04318.29
5.6.120.0130.08020.98
5.6.110.0100.04021.04
5.6.100.0030.08021.08
5.6.90.0130.04021.18
5.6.80.0100.05320.36
5.5.300.0070.08317.98
5.5.290.0070.08318.06
5.5.280.0070.09020.64
5.5.270.0100.08320.76
5.5.260.0100.07720.83
5.5.250.0070.08320.79
5.5.240.0130.06320.34

preferences:
127.26 ms | 1398 KiB | 7 Q