3v4l.org

run code in 500+ PHP versions simultaneously
<?php function demo($array) { $debug_backtrace = []; next($array); foreach ($array as $key => &$value) { echo "{$value}\r\n"; if ($value == 3) { unset($array[$key]); continue; } $debug_backtrace[] = debug_backtrace(); } } demo([1, 2, 3]);
Output for 7.4.0 - 7.4.33, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
1 2 3
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34
1 2 3 2

preferences:
27.27 ms | 1143 KiB | 11 Q