Reading json input in php

Question

php://input is working properly in localhost. But in server it returns empty. Input( request ) to my site is a json(REST - application/json typ

Answer 1

I know this is old, but it might help others:

Careful with single quotes inside your json

From the PHP documentation about json_decode:

the name and value must be enclosed in double quotes
single quotes are not valid 

$bad_json = "{ 'bar': 'baz' }";
json_decode($bad_json); // null

Answer 2

php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. php://input is not available with enctype="multipart/form-data".

See wrappers

Try this too,

....
  public function __construct(){
    parent::__construct();
    if(isset($_POST))
    {
       var_dump(file_get_contents('php://input'));
       $this->json_input_data=json_decode(file_get_contents('php://input'),TRUE);
    }
    else echo 'Not Post';
  }
....

Also check for allow_url_fopen.