ebala

<?php
//phpinfo(); exit;
header('Content-Type: text/html; charset=utf-8');
$a = array(
    array(
        "id" => 1,
        "parent_id" => 0,
        "name" => "Электротовары"
    ),
    array(
        "id" => 331,
        "parent_id" => 0,
        "name" => "Одежда"
    ),
    array(
        "id" => 2,
        "parent_id" => 1,
        "name" => "Компьтеры"
    ),
    array(
        "id" => 3,
        "parent_id" => 0,
        "name" => "Бытовая техника"
    ),
    array(
        "id" => 4,
        "parent_id" => 2,
        "name" => "Acer XD5732"
    ),
    array(
        "id" => 5,
        "parent_id" => 3,
        "name" => "Холодильник"
    ),
    array(
        "id" => 6,
        "parent_id" => 3,
        "name" => "Микроволновка"
    ),

    array(
        "id" => 7,
        "parent_id" => 0,
        "name" => "Автомобили"
    ),
    array(
        "id" => 3331,
        "parent_id" => 331,
        "name" => "Женская"
    ),
    array(
        "id" => 8,
        "parent_id" => 7,
        "name" => "Pego 206"
    )
);

function get_child($id, $data) {
    $childrens = array();
    foreach($data as $row) {
            if ($row['parent_id'] == $id) {
                echo "<select>";
                echo "<option " . " value=' " . $id . " ' > " . $row['name']."</option>";
                echo "</select>";
            $arr = array(
                "name" => $row["name"],
                "childrens" => get_child($row['id'], $data)
            );
            $childrens[] = $arr;
        }
    }
    return $childrens;
}
$aa = get_child(0, $a);
echo "<pre>";
print_r($aa);
echo "</pre>";
?>