3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $key = 'RGREGREGRE'; for($i = 0;$i<1000;$i++) { $key = sha1($key); } echo $key;
based on J4VCu
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
2e05d2f9f08dcf0b9d0ef83f61bd896c0349021c