- array_unshift: documentation ( source)
- array_walk_recursive: documentation ( source)
<?php
$data = array(10, 20, 30, array("lorem", "ipsum", "dolor", array(42, 37), "sit"), 40, 50);
array_unshift($data, -10);
$data[] = 60;
unset($data[3][1]);
function p($v) {
echo $v;
}
array_walk_recursive($data, 'p');