通过按键值过滤我的数组结果来创建新数组

Question

我有这个变量$office，它会在 print_r 时输出：{  "total": 3,  "results": [    {      "id": "4",      "blog_id": "11",      "office_name": "Japan",      "office_status": "inactive"    },    {      "id": "5",      "blog_id": "11",      "office_name": "USA",      "office_status": "active"    },    {      "id": "6",      "blog_id": "11",      "office_name": "London",      "office_status": "inactive"    },    }}现在我想创建一个新变量，其中带有office_statusof 的 变量active只会出现，我想要的输出是：{      "total": 1,      "results": [        {          "id": "5",          "blog_id": "11",          "office_name": "",          "office_status": "active"        },        }    }这是我到目前为止尝试过的，但它仍然返回所有数组：$v= "active";$k = "office_status";foreach($offices as $k => $v) {    $offices_active[$k] = array_filter($v);}print_r($offices_active);请帮忙。谢谢

Answer 1

实际上它可以通过许多不同的方式来完成，一种方法就是这样做。

<?php

$object = '{"total":3,"results":[{"id":"4","blog_id":"11","office_name":"Japan","office_status":"inactive"},{"id":"5","blog_id":"11","office_name":"USA","office_status":"active"},{"id":"6","blog_id":"11","office_name":"London","office_status":"inactive"}]}';

$offices = json_decode($object,true);

$new = array_filter($offices['results'], function ($var) {

    return ($var['office_status'] == 'active');

});

$expected['total'] = count($new);

$expected['results'] = $new;

echo json_encode($expected);

?>

工作演示： https ://3v4l.org/NXZvQ

Answer 2

此代码有助于通过状态值获取数据

<?php

$src_ar = '{"total":3,"results":[{"id":"4","blog_id":"11","office_name":"Japan","office_status":"inactive"},{"id":"5","blog_id":"11","office_name":"USA","office_status":"active"},{"id":"6","blog_id":"11","office_name":"London","office_status":"inactive"}]}';

$office_info = json_decode($src_ar,true);

$inactive_array = sort_by_office_status('inactive', $office_info['results']);

print_r($inactive_array);

$active_array = sort_by_office_status('active', $office_info['results']);

print_r($active_array);

function sort_by_office_status( $office_status, $result_array ) {

    $return_ar =array();

    if( !empty( $result_array ) ) {

        foreach( $result_array as $res ) {

            if( $res['office_status'] == $office_status ) {

                $return_ar['results'][] = $res;

            }

        }

    } else {

        $return_ar['results'] = array();

    }

    $result_count = count( $return_ar['results'] );

    $return_ar['total'] = $result_count;

    return $return_ar;

}

?>