3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a1 = array('a1','a2','a3','a4'); $result=implode(",\n",$a1)."<br/>"; echo $result;
based on qAF39
Output for 4.3.0 - 7.2.0
a1, a2, a3, a4<br/>