Online PHP editor | refs for 3AqJb

@ 2020-05-25T11:08:10Z

<?php

    $a = function () {
        yield from range('a', 'z');
    };
    $b = function () use ($a) {
        yield from $a();
    };
    
    foreach ($b() as $i => $v) {
        echo "$i: $v\n";
    }