如何从cURL呼叫接收和处理数据

Question

I have to send a json response from a cURL call. The user send me a "test" variable to file.php.

On my php file, I use this code

$arr = array($arr = array('test' => 'ok'));
echo json_encode($arr);

And this for the cURL call

curl --request POST http://www.domain.com/WS/file.php -d '{ "test" : "12341234123412342" }'

Here is the answer

[{"test":null}]

What's the good way to get de POST variable and treat it in my php file?

Thanks

EDIT

Just in case, the problem comes from the cURL call. Here's the correct syntax:

curl -H "Content-Type: application/json" -X POST -d "{\"test\":\"12341234123412342\"}" http://www.domain.com/WS/file.php

Answer 1

Ur question is kinda confusing :)

so ur User sends u a variable in file.php and u have to curl with that variable ?

why not just

curl --request POST http://www.domain.com/WS/file.php -d '{ "test" : "$_POST['USER_INPUT_VALUE']" }'

or am i missing something ?