3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new ArrayObject(array(), ArrayObject::ARRAY_AS_PROPS | ArrayObject::STD_PROP_LIST); $obj = array(); var_dump(isset($obj['name']), unset($obj['name']));

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)
5.4.40.0110.03611.99
5.4.30.0120.03911.98
5.4.20.0110.03711.98
5.4.10.0100.03811.98
5.4.00.0170.05311.48
5.3.140.0090.04112.66
5.3.130.0110.04212.66
5.3.120.0100.04712.66
5.3.110.0110.04612.66
5.3.100.0100.04412.12
5.3.90.0100.04812.08
5.3.80.0170.05912.08
5.3.70.0090.04312.08
5.3.60.0090.04512.06
5.3.50.0120.04412.00
5.3.40.0100.04112.00
5.3.30.0120.04011.95
5.3.20.0110.04011.73
5.3.10.0110.03911.70
5.3.00.0100.03811.68

preferences:
143.63 ms | 1394 KiB | 7 Q