(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::getThreadId — Returns the thread ID for the current connection
$connection
   )Returns the thread ID for the current connection.
connectionMysqlnd connection handle. Do not modify!
Connection thread id.
Example #1 MysqlndUhConnection::getThreadId() example
<?php
class proxy extends MysqlndUhConnection {
 public function getThreadId($res) {
  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
  $ret = parent::getThreadId($res);
  printf("%s returns %s\n", __METHOD__, var_export($ret, true));
  return $ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());
$mysqli = new mysqli("localhost", "root", "", "test");
var_dump($mysqli->thread_id);
?>
The above example will output:
proxy::getThreadId(array ( 0 => NULL, )) proxy::getThreadId returns 27646 int(27646)