配列に配列ごと要素を追加

<?php
$ary_data01[0] = "hoge1";
$ary_data01[1] = "fuga1";

$ary_data02[0] = "hoge2";
$ary_data02[1] = "fuga2";

$ary_data = array_merge_recursive($ary_data01, $ary_data02);