3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $keys = array(1,2,3); function foo($key) { return sprintf(':%s', $key); } $placeholders = array_map('foo', $keys);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0