查询字符串并输出问题

Question

$str='{
"attr_list":[{"attr_group_name":"规格","attr_group_id":1,"attr_id":1,"attr_name":"2.5kg"}],
"goods_attr":{"id":58,"goods_id":55,"sign_id":"1","stock":400,"price":"43.00","original_price":"43.00","no":"","bar_code":"","weight":0,"pic_url":"","is_share":1,"individual_share":0,"share_type":0,"member_price":null,"integral_price":null,"use_integral":null,"discount":[],"extra":[],"goods_warehouse_id":55,"name":"升隆-波波肠","cover_pic":"20220816/f8b1b751149a3888a427c07f984f2cdf.jpg","detail":"","pic_list":[{"id":"221","pic_url":"0220816/f8b1b751149a3888a427c07f984f2cdf.jpg"}],"number":2,"goods_share_level":null,"attr_setting_type":0,"goods_type":"goods","ecard_id":0,"cost_price":"0.00"}}';

$str_arr=json_decode($str, true);
        foreach($str_arrb['attr_list'] as $key=>$val){
       $attr_name= $val['attr_name'];
       
       echo $attr_name.'<br><br>';
         }

上面是要调用的内容。现在用下面的可以调用出attr_list里面的内容，但是不能调用goods_attr里面的内容。需要同时调用出attr_list中的attr_name=2.5kg和name=升隆-波波肠
这个如何写呢？

Answer 1

需要双重foreach或者直接获取

<meta charset="utf-8">
<?php
$str='{
"attr_list":[{"attr_group_name":"规格","attr_group_id":1,"attr_id":1,"attr_name":"2.5kg"}],
"goods_attr":{"id":58,"goods_id":55,"sign_id":"1","stock":400,"price":"43.00","original_price":"43.00","no":"","bar_code":"","weight":0,"pic_url":"","is_share":1,"individual_share":0,"share_type":0,"member_price":null,"integral_price":null,"use_integral":null,"discount":[],"extra":[],"goods_warehouse_id":55,"name":"升隆-波波肠","cover_pic":"20220816/f8b1b751149a3888a427c07f984f2cdf.jpg","detail":"","pic_list":[{"id":"221","pic_url":"0220816/f8b1b751149a3888a427c07f984f2cdf.jpg"}],"number":2,"goods_share_level":null,"attr_setting_type":0,"goods_type":"goods","ecard_id":0,"cost_price":"0.00"}}';


$str_arr=json_decode($str, true);
foreach($str_arr as $key=>$val){
     if($key=='attr_list'){
       foreach($str_arr[$key] as $key1=>$val1){
          $attr_name=$val1['attr_name'];
          echo $attr_name.'<br><br>';
       }
     }
     else if($key=='goods_attr'){
        $name=$val['name'];
        echo $name.'<br><br>';
     }
}

//或者
 
echo $str_arr['attr_list'][0]['attr_name'].'<br><br>'.$str_arr['goods_attr']['name']; 
 
?>