3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str1= '082307'; echo substr(chunk_split($str1, 2, ':'), 0, -1); ?> - See more at: http://www.w3resource.com/php-exercises/php-string-exercises.php#sthash.bzfnf2JW.dpuf
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
08:23:07 - See more at: http://www.w3resource.com/php-exercises/php-string-exercises.php#sthash.bzfnf2JW.dpuf