Question

我有一个这样的数组：

SELECT ((date_trunc('day', (m.last_mailing AT TIME ZONE 'UTC')::timestamp) + 
         interval ('1 day') +
         (m.email_delivery_hour::int::text || ':00:00')::time
        )::timestamptz AT TIME ZONE t.timezone
       )::timestamptz AT TIME ZONE 'UTC'
FROM acts2301_membership.member_subscriptions m 
JOIN acts2301_email_queue.timezone t ON m.timezone_reference = t.reference
WHERE m.subscription_reference = '514';

我正试图获得这种格式：

Array
(
 [0] => Chat Show 
 [1] => Non-fiction 
 [2] => Inspirational
)

但是我得到这样的东西：

     "genres": [
        {
            "name": "Chat Show"
        },
        {
            "name": "Non-fiction"
        },
        {
            "name": "Inspirational"
        }
   ]

这就是我在做的事情：

genres": [
    "Chat Show",
    "Non-fiction",
    "Inspirational"
]

然后这是更大阵列的一部分

while($row = mysqli_fetch_array($Data))
{
 $Genres = explode('/', filter_var(rtrim($row['genres'], '/'), FILTER_SANITIZE_URL));
}

Answer 1

print_r(
  json_encode(["genres" => array_map(
                              function($v) { return ['name' => $v]; },
                              $Genres)]));

结果

{"genres":[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Inspirational"}]}

Answer 2

例如，这是PHP中的数组

$var = array(
                "Chat Show",
                "Non-fiction" ,
                "Inspirational"
            );

没有钥匙＆＃34;名称＆＃34;。您应该创建一个新数组并将每个元素作为数组推送到新数组。

$result = array();
foreach($var as $name)
{
    $arr = array("name"=>$name);
    array_push($result, $arr);
}

之后，使用$result

对json_encode进行编码

$json = json_encode($result,true);
echo $json;

以下是echo $json的输出结果。

[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Inspirational"}]

Answer 3

试试这个：

$Genres=array("Chat Show","Non-fiction","Non-fiction");
    $new["genres"]=array();
    foreach($Genres as $key => $name){
        $new["genres"][$key] = ['name' => $name];
    }
    echo json_encode($new);

<强>输出 {"genres":[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Non-fiction"}]}

Answer 4

您在此处发布的json字符串不是有效的json，或者是json的一部分。

所以，你的javascript中可能已经有genres了，想要得到剩下的东西，这是

[  
    { "name": "Chat Show" },
    { "name": "Non-fiction" },
    { "name": "Inspirational" }
]

您当前的PHP $Genres看起来像这样，因为您正在爆炸字符串

$Genres = [ 'Chat Show', 'Non-fiction', 'Inspirational' ];

应用此选项可更改当前$Genres

的值

array_walk($Genres, function(&$v){ $v = ['name'=>$v]; });

在您的javascript中使用它，

"genres": <?php json_encode($Genres)?>

Answer 5

试试这个：
$genres_new['name']=$Genres; echo json_encode($genres_new);

Answer 6

你的问题是，你有简单的字符串数组，但你想要一个关联的多级数组。这是一个相对简单的操作。首先让我们用一些代码说明问题：

// That is what you have, an :
$Genres = [
    "Chat Show",
    "Non-fiction",
    "Inspirational",
];

// or the same for php > 5.4:
 $Genres = array(
    "Chat Show",
    "Non-fiction",
    "Inspirational",
);

这将产生以下json字符串（echo json_encode($Genres);）：

 ["Chat Show","Non-fiction","Inspirational"]

但是如果你想要这样的输出：

[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Inspirational"}]

您必须将字符串转换为数组。你可以用那个（或类似的循环）来做到这一点：

foreach($Genres as $key => $name){
    $Genres[$key] = ['name' => $name];
}

之后你的数组看起来像这样：

Array (
  0 => 
  array (
    'name' => 'Chat Show',
  ),
  1 => 
  array (
    'name' => 'Non-fiction',
  ),
  2 => 
  array (
    'name' => 'Inspirational',
  ),
)

把事情放在一起你会得到类似的东西：

<?php

// Do whatever is necessary to build your Genres array ...
$Genres = [
    "Chat Show",
    "Non-fiction",
    "Inspirational",
];

// Convert the array into an array of arrays
foreach($Genres as $key => $name){
    $Genres[$key] = ['name' => $name];
}

echo json_encode($Genres);

/**
Now you will get this output:
[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Inspirational"}]
*/

// After that you can add it to the bigger array:
$biggerArray = [];
$biggerArray['genres'] = $Genres;
echo json_encode($biggerArray);
/**
 Output:
 {"genres":[{"name":"Chat Show"},{"name":"Non-fiction"},{"name":"Inspirational"}]}
 */

如何将数组格式化为键：值？

6 个答案: