Description:
------------
Msqli extension work correctly in procedural mode but NON work correctly width mode OOP. EXEMPLE CODE:

<?php
// FIRST CONNECTION Procedural
$mysqli = mysqli_connect("error", "root", "dolfomon", "test");  // HOST (1)"localhost"  (2)"error"

// ===================INFO MySqli & PHP ==============
echo 'Current PHP version: ' . phpversion() . "<br>";
echo 'MySqli Client library version: ' . mysqli_get_client_version() . "<br>";
echo 'MySqli Server version: ' . mysqli_get_client_version() . "<br>";
//===============================================

if (mysqli_connect_errno($mysqli)) {
    echo "Connection failed (mode PROC)  MySQL: " . mysqli_connect_error() ."<br>"; 
} 
echo "<br>";
$res = mysqli_query($mysqli, "SELECT 'Ok connection (PROC) width test ' AS _msg FROM DUAL");
$row = mysqli_fetch_assoc($res);
echo $row['_msg'];

// second CONNECTION OOP
$my = new mysqli("error", "root", "dolfomon", "test");	// HOST (3)"localhost"  (4)"error"
// print_r($my); echo "<br>";					// (5) comment (6) active statement
echo "<br>";

if ($my->connect_errno) {
    echo "Connection failed (mode OOP) MySQL: " . $my->connect_error;
} 
echo "<br>";

$res = $my->query("SELECT 'Ok connection (OOP) width test' AS _msg FROM DUAL");
$row = $res->fetch_assoc();
echo $row['_msg'];
?> 


Test script:
---------------
COMMENT:
if HOST option (1) and  HOST option (3) and option (5)  all OK it will output:
--------------------------------------
Current PHP version: 5.4.4-11
MySqli Client library version: 50528
MySqli Server version: 50528

Ok connection (PROC) width test 

Ok connection (OOP) width test 
--------------------------------------

If HOST option (2) and  HOST option (4) and option (6)  all OK it will output:
-----------------------------------------------------------------------------
Current PHP version: 5.4.4-11
MySqli Client library version: 50528
MySqli Server version: 50528
Connection failed (mode PROC) MySQL: Unknown MySQL server host 'error' (20)

mysqli Object ( [affected_rows] => [client_info] => [client_version] => 50528 [connect_errno] => 2005 [connect_error] => Unknown MySQL server host 'error' (20) [errno] => [error] => [error_list] => [field_count] => [host_info] => [info] => [insert_id] => [server_info] => [server_version] => [stat] => [sqlstate] => [protocol_version] => [thread_id] => [warning_count] => ) 

Connection failed (mode OOP) MySQL: Unknown MySQL server host 'error' (20)
----------------------------------------------------------------------------

if HOST option (2) and  HOST option (4) and option (5)  NOT WORK will output:
-----------------------------------------------------------------------------
Host HTTP error 500 
-----------------------------------------------------------------------------

if HOST option (2) and  HOST option (3) and option (5) Procedural work OK will output:
-------------------------------------------------------------------------------
Current PHP version: 5.4.4-11
MySqli Client library version: 50528
MySqli Server version: 50528
Connection failed (mode PROC) MySQL: Unknown MySQL server host 'error' (20)

Ok connection (OOP) width test 
---------------------------------------------------------------------------