How Can I Encapsulate JSON Output within an 'item' Object in PHP?

Encapsulating JSON Output within an "Item" Object

When attempting to generate a JSON object from a PHP array, it may be necessary to encapsulate the resulting JSON code within an additional "item" object. Let's explore how to achieve this.

The JSON Structure

The desired JSON structure is as follows:

{
    "item": {
        ... JSON CODE HERE ...
    }
}

Encapsulating the JSON Output

Initially, a common approach to encode a PHP array into JSON is using the json_encode function, as seen below:

$post_data = json_encode($post_data);

To encapsulate the output within an "item" object, we can modify the code as follows:

$post_data = json_encode(array('item' => $post_data));

However, this may not produce the desired output with curly braces ("{}"). To force the encoding of an object, we can specify the JSON_FORCE_OBJECT constant:

$post_data = json_encode(array('item' => $post_data), JSON_FORCE_OBJECT);

JSON Specification

It's worth noting that "{}".

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