Are mysqli_result::free and mysqli_stmt::free_result the same?

Question

I wrote this code :

$stmt = $link->prepare($statement_string);

// [...]

$result_m = $stmt->result_metadata();
if ($result_m) {
  $stmt->store_result();

  // [...]

  $stmt->free_result();
  $result_m->free();
}

Is that code right ?

I read the doc mysqli-stmt.result-metadata and mysqli-result.free doc . I also read this post : ...free-mysql-result-after-storing-it but I didn't find my answer.

EDIT :

What I want to know is : will the $stmt->free_result(); just liberate some memory allocation done by $stmt->store_result(); or clearly free the memory of the mysqli_result object built by $stmt->result_metadata(); ?

Answer 1

according to these pages:

mysqli-free-result

mysqli-stmt-free-result

meta data and actual statement data (rows) are different objects so you must clear them both separately.

exactly as you did in your code.