Question

How do I get JSON data (sent by ‘func2’) in ‘func1’?

func1.php

include 'func2.php';

$data = run_method();

func2.php

function run_method() {
//...
  echo json_encode(array('f1' => $val1, 'f2' => $val2));
  die();
}

Answer 1

You need not to echo but to return data like:

function run_method() {
//...
  return json_encode(array('f1' => $val1, 'f2' => $val2));
}

UPD:

To see what you get in $data use var_dump($data); after $data = run_method();

In func1.php you have to decode json_encoded data back (unserialize it).

So the best way here is not to use json_encode and return simple array like:

return array('f1' => $val1, 'f2' => $val2);

In your case to access $val1 use $data['f1'], to access $val2 use $data['f2'].