3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $n = 'nomeexame=cisticercose---sangue&detalheexames=cistisa'; $n = preg_replace('/-+/', '-', $n); echo $n;
based on DrKtu
Output for 4.3.0 - 7.1.7
nomeexame=cisticercose-sangue&detalheexames=cistisa