Online PHP editor | refs for 1A1T9

<?php function generate_ints($n){ foreach ( range(0,$n-1) as $number) { yield $number; } } $gen = generate_ints(10); // iterable object can be used in foreach foreach ($gen as $g) { echo $gen->current(); echo '<span style="color:blue">',$gen->next(),'</span>'; // even numbered output }