PHP 7.3.8-1+0
20190807.43+debian91.gbp7731bf (cli) (built: Aug 7 2019 19:46:25) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.3.8, Copyright (c) 1998-2018 Zend Technologies with Zend OPcache v7.3.8-1+020190807.43+debian91.gbp7731bf, Copyright (c) 1999-2018, by Zend Technologies
Doesn't need compilation
$ time php fibonacci.php