3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = unserialize("O:1:"B":0:{}");

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)
7.0.00.0070.05320.06
5.6.160.0100.06720.39
5.6.150.0070.08018.18
5.6.140.0030.04018.18
5.6.130.0000.04318.18
5.6.120.0100.08021.12
5.6.110.0100.08021.08
5.6.100.0070.07721.10
5.6.90.0030.04320.97
5.6.80.0000.04720.40
5.5.300.0070.05017.99
5.5.290.0070.08017.94
5.5.280.0030.04320.98
5.5.270.0100.05020.83
5.5.260.0130.06720.75
5.5.250.0000.06320.68
5.5.240.4100.04020.15

preferences:
140.15 ms | 1394 KiB | 7 Q