Online PHP editor | refs for LF0CR

<?php $my_array = ['a','b','c']; $array_main[] = &$my_array; $array_main[] = [1, 2]; $array_main[] = [4, 5]; $array_main[] = ['etc', 'bla']; $iterations = count($array_main); for ($i = 1; $i < $iterations; $i++) { $array_main[0] = array_merge( $array_main[0], $array_main[$i] ); } echo '<pre>'; print_r($my_array);