How to Properly Decode JSON POST Data in PHP?

Receiving JSON POST Data in PHP

Problem Overview

When attempting to receive a JSON POST request, you encounter the issue of being unable to decode the data. Various methods fail to produce any output or return null.

Solution

To successfully receive the JSON POST data, replace "operacion" with "operation" in your code.

$data = json_decode(file_get_contents('php://input'), true);
print_r($data);
echo $data["operation"];

Moreover, echo the JSON string from php://input to verify its contents:

echo file_get_contents('php://input');

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