Online PHP editor | refs for jmqZl

<?php $arr = ['one', 'two', 'three', 'four', 'five']; echo 'foreach on $arr' . PHP_EOL; foreach($arr as $elem) { var_dump(current($arr)); } echo PHP_EOL . 'foreach on $refArr' . PHP_EOL; $refArr = &$arr; foreach($refArr as $elem) { var_dump(current($arr)); } echo PHP_EOL . 'substituting array during iteration' . PHP_EOL; $refArr = &$arr; foreach($refArr as $elem) { if ($elem == 'three') { $arr = [1, 2, 3, 4, 5]; } echo $elem . PHP_EOL; }