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phparray读取,该如何解决

时间:2021-07-01 10:21:17 帮助过:11人阅读

php array读取
Array
(
[0] => stdClass Object
(
[userName] => cheng
)

)




Array
(
[0] => stdClass Object
(
[did] => 1
[comment] => Array
(
[user_id] => 4
[userName] => Array
(
[0] => stdClass Object
(
[userName] => cheng
)
)
)
)


如何读取到userName的值
------解决思路----------------------
是不是从json字符串读出来的
json_decode($json_str, true);
这样出来的就不是基类对象了
------解决思路----------------------
1、$ar[0]->userName
2、$ar[0]->comment->userName[0]->userName

如果你是从 json 解码过来的数据,应给 json_decode 的第二个参数赋 true
$ar = json_decode($s, true)

$ar = json_decode($s, 1)
这样就全是数组了
1、$ar[0]['userName']
2、$ar[0]['comment']['userName'][0]['userName']

------解决思路----------------------
$array[0]->comment['userName'][0]->userName
------解决思路----------------------
第一个
  1. <br>$obj = new stdClass();<br>$obj->userName = 'cheng';<br>$arr = array($obj);<br><br>echo $arr[0]->userName;<br>


第二个
  1. <br>$obj1 = new stdClass();<br>$obj1->userName = 'cheng';<br><br>$obj = new stdClass();<br>$obj->did = 1;<br>$obj->comment = array('user_id'=>4,'userName'=>array($obj1));<br><br>$arr = array($obj);<br>echo $arr[0]->comment['userName'][0]->userName;<br>


如果简单点可以全部变数组
  1. <br>$obj1 = new stdClass();<br>$obj1->userName = 'cheng';<br><br>$obj = new stdClass();<br>$obj->did = 1;<br>$obj->comment = array('user_id'=>4,'userName'=>array($obj1));<br><br>$arr = array($obj);<br><br>$result = json_decode(json_encode($arr), true);<br><br>print_r($result);<br>

  1. <br>Array<br>(<br> [0] => Array<br> (<br> [did] => 1<br> [comment] => Array<br> (<br> [user_id] => 4<br> [userName] => Array<br> (<br> [0] => Array<br> (<br> [userName] => cheng<br> )<br><br> )<br><br> )<br><br> )<br><br>)<br>

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