How Do I Access a JSON POST Body in PHP?

Accessing JSON POST Body in PHP

In PHP, accessing the JSON body of a POST request requires a specific method. While $_POST cannot handle JSON data, the php://input stream can be utilized to retrieve it.

To obtain the body of a JSON POST request, follow these steps:

1. Fetch the Raw Request Body:
   Use file_get_contents('php://input') or stream_get_contents(STDIN) to access the request body.

$requestBody = file_get_contents('php://input'); // or stream_get_contents(STDIN)

2. Parse the JSON Body:
   Decode the JSON string using a JSON parser to extract the desired data.

$data = json_decode($requestBody);

3. Access the Data:
   You can now access the data from the decoded JSON object.

$value = $data->a; // In your example, this would be 1

Note:

• The php://input stream can only be read once, so it's advisable to store it in a temporary stream if necessary.
• This method is not suitable for multipart/form-data requests, as the data is already parsed into $_POST.

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