3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'http://asas.pl/asdasd//asdads//asd.pdf'; $regexp = '/(?:[^\/\/])(\/\/)/'; echo preg_replace($regexp, '/', $str);
based on TXPmI
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
http/asas.pl/asdas/asdad/asd.pdf