How to ensure that my response from server has `Content-Length` header with PHP? -

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this how response server:

include('../connection.php'); connection(); mysql_query('set names utf8');  $response = array(); $words = array();   $query = "select * `$table` order `created_at` desc"; $result = mysql_query($query);  while ($row = mysql_fetch_assoc($result)) {      $row['id'] = intval($row['id']);     array_push($words, $row); }  $response['words'] = $words;  echo json_encode($response);

but need here content-length header. how can check or add/create such header?

php handles if enable output buffeting. when write output stream (via buffer) php knows how you've written , sets header value before sending response body.


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