close ajax request from php before script ends

Question

How do you close an ajax request from php before the script ends? Example: user requests php.php, which has the line: echo "phpphp", and after this line, the ajax request finishes and has the data "phpphp", but the PHP script keeps on running, without using processes or forking?

Answer 1

How do i implement this scenario using PHP? has the answer. Set Connection close and Content length headers, with the flushing.

  ob_start();

  echo "111";
  header("Content-Length: ".ob_get_length());
  header("Connection: close");

  flush();
  somescript();