3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = 3; $middle = (pow($n, 2) + 1) / 2; echo $middle; }

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)
7.0.20.0400.07720.26
7.0.10.0100.09020.23
7.0.00.0070.08720.20
5.6.170.0400.04320.48
5.6.160.0000.04320.57
5.6.150.0030.08718.20
5.6.140.0030.04018.15
5.6.130.0030.04018.19
5.6.120.0000.04721.12
5.6.110.0070.08720.99
5.6.100.0100.06021.00
5.6.90.0100.08320.89
5.6.80.0000.04720.41
5.5.310.0370.04320.23
5.5.300.0170.05317.97
5.5.290.0170.07317.95
5.5.280.0070.08320.98
5.5.270.0070.05020.95
5.5.260.0000.04320.86
5.5.250.0030.04020.68
5.5.240.3870.03720.15

preferences:
135.65 ms | 1394 KiB | 7 Q