3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $text = "This is a #hashtag within some #awesometext."; $newText = preg_replace("/#(\w+)/", "<a href='category.php?tag=$1'>#$1</a>", $text);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0