Online PHP editor | refs for VOYiT

@ 2015-04-22T06:29:34Z

<?php


function &gen($vals)
{
    $func = function ($i) {return $i; };
    
    foreach($vals as $val) {
        yield $func($val);
    }
}

$values = [1, 2, 3, 4, 5];

foreach(gen($values) as &$value) {
    $value *= 2;
}

var_dump($values);