Online PHP editor | refs for bgaQt

<?php $nu_array = null; $callback = function ( $item ) use(&$callback, &$nu_array) { if (!is_array($item)) { $nu_array[] = $item; } else if ( is_array( $item ) ) { foreach( array_values($item) as $v) { if ( !(is_array($v))) { $nu_array[] = $v; } else { $callback( $v ); continue; } } } }; $array = array('alpha',array(1,2,3),'beta',array(7,8,array(9,10))); array_walk_recursive($array, $callback); print_r($nu_array); $output = array(); array_walk_recursive($array, function ($current) use (&$output) { $output[] = $current; }); print_r($output); print "\n...................................\n"; $output = array(); array_walk($array, function ($current) use (&$output) { $output[] = $current; }); print_r($output); print "\n\n...................................\n"; $output = iterator_to_array(new RecursiveIteratorIterator( new RecursiveArrayIterator($array)), FALSE); print_r($output);