3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = '//asak.pl/asdask//asdadk//asd.pdf'; $regexp = '/([^:]\/)\/+/'; echo preg_replace($regexp, '\1', $str);
based on HJgp3
Output for 4.3.0 - 7.1.0
//asak.pl/asdask/asdadk/asd.pdf