3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach ([true, true] as $cond) if ($cond) : while (--$cond) { echo 'foo'; goto end; } endif; end: echo 'end';
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.23, 7.4.0 - 7.4.11, 8.0.0alpha1 - rc2
fooend