PHP connection_aborted() Function

<?php
function check_abort()
  {
  if (connection_aborted())
  error_log ("Script $GLOBALS[SCRIPT_NAME]" .
  "$GLOBALS[SERVER_NAME] was aborted by the user.");
  }

// Some script to be executed here

// Call the check_abort function when the script ends
register_shutdown_function("check_abort");
?>