generators.php

<?php

// @see http://php.net/manual/en/class.generator.php
// @see http://php.net/manual/en/class.generator.php

function getRange ($max = 10) {
    for ($i = 1; $i < $max; $i++) {
        yield $k => $i;
    }
}

foreach (getRange(PHP_INT_MAX) as $range) {
    echo "Dataset {$range} <br>";
}