PHP force download json [duplicate]

Answer 1

header('Content-disposition: attachment; filename=file.json');
header('Content-type: application/json');
echo $json;

Answer 2

$json = json_encode( array( 'test' => 'test' ));

header('Content-disposition: attachment; filename=jsonFile.json');
header('Content-type: application/json');

echo( $json);