3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $data = [0, 1,2,3,4,5,6,8,9]; foreach ($data as $item) { if ($i++ % 2 == 0) { echo "<strong>" . $item . "<strong>"; } else { echo $item; } }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.26, 8.1.0 - 8.1.13, 8.2rc1 - rc3
<strong>0<strong>1<strong>2<strong>3<strong>4<strong>5<strong>6<strong>8<strong>9<strong>

preferences:
20.89 ms | 409 KiB | 5 Q