3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array('Hello','World!','Beautiful','Day!'); echo implode(" ",$arr)."<br>"; echo implode("+",$arr)."<br>"; echo implode("-",$arr)."<br>"; echo implode("X",$arr); ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Hello World! Beautiful Day!<br>Hello+World!+Beautiful+Day!<br>Hello-World!-Beautiful-Day!<br>HelloXWorld!XBeautifulXDay!