An updated version of array_merge_recursive without overwriting numeric keys from martyniuk :
function array_merge_recursive_new()
{
$arrays = func_get_args();
$base = array_shift($arrays);
foreach ($arrays as $array) {
reset($base); //important
while (list($key, $value) = @each($array)) {
if (is_array($value) && @is_array($base[$key])) {
$base[$key] = array_merge_recursive_new($base[$key], $value);
} else {
if(isset($base[$key]) && is_int($key)) {
$key++;
}
$base[$key] = $value;
}
}
}
return $base;
}
