php - PHP数组到指定的json结构

Question

我需要得到一个 JSON 结构如下：

{
   "emails": [
        {
            "sender": "[e-mail]",
            "unread_count": 2,
            "items": [
                {
                    "id": "89",
                    "email": "[e-mail]",
                    "read": "0",
                },
                {
                    "id": "32",
                    "email": "[e-mail]",
                    "read": "0",
                }
            ]
       },
       {
            "sender": "[e-mail]",
            "unread_count": 0,
            "items": [
                {
                    "id": "2",
                    "email": "[e-mail]",
                    "read": "1",
                }
            ]
       },
       {
            "sender": "[e-mail]",
            "unread_count": 1,
            "items": [
                {
                    "id": "1",
                    "email": "[e-mail]",
                    "read": "0",
                }
            ]
       }
   ]
}  

数组（$hire_email）：

在下面的数组中，我需要根据email. 并数数。未读消息（即已读 = 0）。

Array
(
[0] => Array
    (
        [id] => 89
        [email] => [e-mail]
        [read] => 0
    )

[1] => Array
    (
        [id] => 32
        [email] => [e-mail]
        [read] => 0
    )

[2] => Array
    (
        [id] => 2
        [email] => [e-mail]
        [read] => 1
    )

[3] => Array
    (
        [id] => 1
        [email] => [e-mail]
        [read] => 0
    )
)

以下是用于维护 JSON 结构的代码片段。

foreach($hire_email as $val) {
    if($val['read']==0){ $count++; }else{ $count = 0;}
    $hire_group_email[$val['email']]['sender'] = $val['email'];
    $hire_group_email[$val['email']]['unread_count'] = $count;
    $hire_group_email[$val['email']]['items'][] = $val;
}
$output["emails"][] = $hire_group_email;
echo json_encode($output);

标签： phpjsonforeach

Answer 1

这应该可以解决问题。

$hire_email =array(
    array(
        "id" => "89",
        "email" => "[e-mail]",
        "read" => "0"
    ),

    array
        (
            "id" => "32",
            "email" => "[e-mail]",
            "read" => "0"
        ),

    array
        (
            "id" => "2",
            "email" => "[e-mail]",
            "read" => "1"
        ),

    array
        (
            "id" => "1",
            "email" => "[e-mail]",
            "read" => "0"
        )
);
$tmp = array();

foreach($hire_email as $arg)
{
    $tmp[$arg['email']][] = $arg;
}

$output = array();

foreach($tmp as $type => $labels)
{
    $count = 0;
    foreach ($labels as $value) {
        if($value['read']==0){ $count++; }else{ $count = 0;}
    }
    $output[] = array(
        'sender' => $type,
        'unread_count' => $count,
        'items' => $labels
    );
}

echo json_encode($output);