public function test_mysql_connect_multi()
{
$this->skipForHHVM();
$conn = mysql_connect(static::$host, 'root');
$conn2 = mysql_connect(static::$host, 'root');
$this->assertEquals($conn, $conn2);
$result = mysql_query("SELECT CONNECTION_ID()", $conn);
$row = mysql_fetch_row($result);
$id = $row[0];
$result = mysql_query("SELECT CONNECTION_ID()", $conn2);
$row = mysql_fetch_row($result);
$id2 = $row[0];
$this->assertEquals($id, $id2);
}