3v4l.org

run code in 300+ PHP versions simultaneously
<?php $iterator = new IteratorIterator( new EmptyIterator() ); var_dump($iterator instanceof SeekableIterator); var_dump(method_exists($iterator, 'seek'); $iterator = new NoRewindIterator( new EmptyIterator() ); var_dump(method_exists($iterator, 'seek');

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)
5.4.80.0270.06316.44
5.4.70.0170.04316.39
5.4.60.0200.07016.56
5.4.50.0170.04016.16
5.4.40.0230.07316.43
5.4.30.0170.06716.34
5.4.20.0200.03316.38
5.4.10.0270.04716.34
5.4.00.0230.07015.76
5.3.180.0170.07014.54
5.3.170.0300.07314.40
5.3.160.0200.07314.42
5.3.150.0230.05714.41
5.3.140.0270.07314.60
5.3.130.0200.06014.48
5.3.120.0270.07314.45
5.3.110.0230.07314.39
5.3.100.0230.05313.88
5.3.90.0270.07013.86
5.3.80.0200.05314.07
5.3.70.0270.04013.97
5.3.60.0270.06313.91
5.3.50.0200.04313.99
5.3.40.0300.06313.82
5.3.30.0170.07314.00
5.3.20.0100.04713.56
5.3.10.0230.06313.75
5.3.00.0170.07013.48

preferences:
141.67 ms | 1394 KiB | 7 Q