之前我们讲解过使用javascript获取json数据节点路径的问题，今天我们更进一步，讲解下php获取json数据所有的节点路径
$value) { $queue[] = $field; } $head = 0; $tail = count($queue); while ($head $ph) { $tmpdata = &$tmpdata[$ph];} if (is_array($tmpdata) && !empty($tmpdata)) { $newfield = $field; foreach ($tmpdata as $curfield => $curvalue) { $newfield = $field . '/' . $curfield; $queue[$tail++] = $newfield;} } else { $retdata[] = $field; }}} return $retdata;}//测试数据$data = file_get_contents(http://restapi.ele.me/v1/restaurants?extras%5b%5d=food_activity&extras%5b%5d=restaurant_activity&extras%5b%5d=certification&fields%5b%5d=id&fields%5b%5d=name&fields%5b%5d=phone&fields%5b%5d=promotion_info&fields%5b%5d=name_for_url&fields%5b%5d=flavors&fields%5b%5d=is_time_ensure&fields%5b%5d=is_premium&fields%5b%5d=image_path&fields%5b%5d=rating&fields%5b%5d=is_free_delivery&fields%5b%5d=minimum_order_amount&fields%5b%5d=order_lead_time&fields%5b%5d=is_support_invoice&fields%5b%5d=is_new&fields%5b%5d=is_third_party_delivery&fields%5b%5d=is_in_book_time&fields%5b%5d=rating_count&fields%5b%5d=address&fields%5b%5d=month_sales&fields%5b%5d=delivery_fee&fields%5b%5d=minimum_free_delivery_amount&fields%5b%5d=minimum_order_description&fields%5b%5d=minimum_invoice_amount&fields%5b%5d=opening_hours&fields%5b%5d=is_online_payment&fields%5b%5d=status&fields%5b%5d=supports&fields%5b%5d=in_delivery_area&geohash=wx4g07j0w1v7&is_premium=0&limit=1000&offset=24&type=geohash);$ret = itertree($data);print_r($ret);
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