<?php
function dobrar_array($dobrar){
foreach($dobrar as $lista){
echo $lista*2 . "<br>";
}
}
$resposta = dobrar_array
(array(3, 15, 23)); echo $resposta;
//https://pt.stackoverflow.com/q/52903/101
IDw/cGhwCmZ1bmN0aW9uIGRvYnJhcl9hcnJheSgkZG9icmFyKXsKICAgIGZvcmVhY2goJGRvYnJhciBhcyAkbGlzdGEpewogICAgICAgIGVjaG8gJGxpc3RhKjIgLiAiPGJyPiI7CiAgICB9Cn0KJHJlc3Bvc3RhID0gZG9icmFyX2FycmF5KGFycmF5KDMsIDE1LCAyMykpOwplY2hvICRyZXNwb3N0YTsKCi8vaHR0cHM6Ly9wdC5zdGFja292ZXJmbG93LmNvbS9xLzUyOTAzLzEwMQ==