How to Retrieve Request Payload Data in PHP with Ajax Store?

Request Payload Retrieval in PHP with Ajax Store

In a scenario involving PHP, ExtJS, and an ajax store, data is transmitted not via POST or GET parameters, but rather in the "Request Payload" field as JSON. While the traditional $_POST and $_GET variables remain empty, this raises the question of how to retrieve this data effectively in PHP.

The solution lies in leveraging the php://input pseudo-file. This wrapper stream provides access to raw data from the request body. To obtain the request payload, simply utilize the file_get_contents() function:

$request_body = file_get_contents('php://input');

If the payload is in JSON format, you can further decode it using json_decode():

$data = json_decode($request_body);

The resulting $data variable will now contain the decoded JSON data as a PHP array, enabling easy access and manipulation.

Note that php://input is specifically suitable for processing raw data, and is a more efficient alternative to using $HTTP_RAW_POST_DATA. Additionally, it is not supported for requests with multipart/form-data content.

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