Generators + splat operator example

example.php

<?php

function generateNumbers($limit)
{
    foreach (range(1, $limit) as $n) {
        echo $n, ':';

        yield $n;
    }
}

function doWithSplat(...$numbers)
{
    foreach ($numbers as $number) {
        echo $number * 2, PHP_EOL;
    }
}

function doWithoutSplat($numbers)
{
    foreach ($numbers as $number) {
        echo $number * 2, PHP_EOL;
    }
}

// This executes the generator all the way before passing to the function
doWithSplat(...generateNumbers(10));
// This actually works as a generator
doWithoutSplat(generateNumbers(10));