Description:
------------
Hello

The problem is that exception are not catching connection problems when instanciate the mysqli class.

Reproduce code:
---------------
<?php

/* Create custom exception classes */ 
class ConnectException extends Exception {} 
class QueryException extends Exception {} 


class example_mysqli extends mysqli 
{ 
  function __construct($adr, $login, $mdp, $nom_bd) 
  { 
try{
  /* Pass all arguments passed to the constructor on to the parent's constructor */ 
    $args = func_get_args(); 
    // OK if(!@parent::__construct($adr, $login, $mdp, $nom_bd))
    if(!parent::__construct($adr, $login, $mdp, $nom_bd))
    {
      throw new ConnectException(mysqli_connect_error(), mysqli_connect_errno());    	
    }

   /* Throw an error if the connection fails */ 
    if(mysqli_connect_error()){ 
      throw new ConnectException(mysqli_connect_error(), mysqli_connect_errno()); 
    } 
   }
   catch (Exception $e)
   {
   	throw new ConnectException(mysqli_connect_error(), mysqli_connect_errno()); 
   }
  } 

  function query($query) 
  { 
    $result = parent::query($query); 
    if(mysqli_error($this)){ 
      throw new QueryException(mysqli_error($this), mysqli_errno($this)); 
    } 
    return $result; 
  } 
} 

try { 
  $my = new example_mysqli('loclhost','root', '', 'test'); 
  $result = $my->query("SELCT NOW()"); 

} 
catch(Exception $exception) { 
  echo "Connection Error\n"; 
 
} 
catch(QueryException $exception) { 
  echo "Query Error\n"; 

} 
/* Handle exceptions that we weren't expecting */ 
catch(Exception $exception) { 
  echo "Who was that masked exception?\n"; 

} 

$result->close(); 
$my->close(); 

?>


Expected result:
----------------
it should print me "connection Error" 



Actual result:
--------------
it always return this error : 


 mysqli::mysqli() [function.mysqli]: Unknown MySQL server host 'loclhost' (11001) in c:\wamp\www\wmi\mysqli.php on line 16

Connection Error

With exception php error should NOT be display only the message in the "catch" should appear !