如何过滤 stdClass 对象答案

【问题标题】：How can I filter stdClass object如何过滤 stdClass 对象
【发布时间】：2015-05-15 12:18:10
【问题描述】：

我有下面将 JSON 放入数组的数据

stdClass Object
(
    [success] => 1
    [total] => 850
    [message] => 
    [data] => Array
        (
            [0] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 03
                    [BLOCK] => 04
                    [MATL] => ST
                    [LENGTH] => 516.492
                )

            [1] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 03
                    [BLOCK] => 05
                    [MATL] => SCP
                    [LENGTH] => 19.177
                )

            [2] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 03
                    [BLOCK] => 05
                    [MATL] => ST
                    [LENGTH] => 519.355
                )

            [3] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 03
                    [BLOCK] => 06
                    [MATL] => SCP
                    [LENGTH] => 59.713
                )

            [4] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 03
                    [BLOCK] => 06
                    [MATL] => ST
                    [LENGTH] => 476.866
                )

            [5] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 04
                    [BLOCK] => 03
                    [MATL] => SCP
                    [LENGTH] => 64.875
                )

            [6] => stdClass Object
                (
                    [BRANCH] => 01
                    [ZONE] => 04
                    [BLOCK] => 03
                    [MATL] => ST
                    [LENGTH] => 44.888
                ) ....

我想将 Array 中的数据过滤为 ZONE = '03'。
谁能给出示例代码来做到这一点？
谢谢。

【问题讨论】：

stackoverflow.com 在您向我们展示您的尝试时效果很好（阅读：粘贴代码示例）。
How to filer PHP Array stdClass Object的可能重复

标签： php arrays json filter

【解决方案1】：

你可以使用 array_filter http://php.net/manual/en/function.array-filter.php

$input = (object)array(
  'success'=>1,
  'total'=>850,
   'data'=>array(
    (object)array('ZONE'=>'01'),
    (object)array('ZONE'=>'04'),
    (object)array('ZONE'=>'04'),
    (object)array('ZONE'=>'04'),
    (object)array('ZONE'=>'03'),
    (object)array('ZONE'=>'02')
  )
);

$output = array_filter($input->data,function($object){
  return $object->ZONE == '04';
});

print_r($output);

array_filter 的工作原理是测试数组中的每个项目并返回 TRUE 或 FALSE。

【讨论】：