Big fairy, old fairy, not big fairy, let's see why there is no data value after inheritance. Sorry, I don't understand.

Big fairy, old fairy, not big fairy, let's see why there is no data value after inheritance. Why don't I understand? This post was last edited by bixuewei in 2013-08-0323: 25: 10 & lt ;? Php $ config & nbsp; array (); $ config [DB_HOST] localhost; $ config [DB_USE big fairy, old fairy, not too small fairy, let's take a look. why is there no data value after inheritance. Why don't I understand?

This post was last edited by bixuewei at 23:25:10

 $config = array();
$config['DB_HOST']='localhost';
$config['DB_USER']='root';
$config['DB_PASS']='';
$config['DB_NAME']='hfdb';


foreach($config as $name =>$val)
{
define($name,$val);
}
$dsn = "mysql:host=".DB_HOST.";dbname=".DB_NAME;
$dbo = new PDO($dsn,DB_USER,DB_PASS);

/*

$sql="select * from task";

$stmt =$dbo->prepare($sql);

$stmt ->execute();
$results = $stmt -> fetchALL(PDO::FETCH_ASSOC);
print_r($results); 
$stmt ->closeCursor();
*/



class DB_Connect{

public $db;


protected function __construct($dbo=NULL)
{

$dsn = "mysql:host=".DB_HOST.";dbname=".DB_NAME;
try
{
$this->db =new PDO($dsn,DB_USER,DB_PASS);
}
catch(Exception $e)
{
die($e->getMessage());
}
}
}

class Task extends DB_Connect
{
public function __construct($dbo=NULL,$useData=NULL)
{
parent::__construct($dbo);
}

private function _LoadEventTask ($id=NULL)
{
$sql="SELECT * FROM `task`";

try
{
$stmt = $this->db->prepare($sql);
$stmt ->execute();
$results = $stmt -> fetchALL(PDO::FETCH_ASSOC);
$stmt ->closeCursor();
return $results;
}
catch( Exception $e)
{
die($e->getMessage() );
}
}
}
$ssss= new Task($dbo);
var_dump ($ssss);

Inheritance

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------ Solution --------------------
Object (Task) #2 (1 ){
["Db"] =>
Object (PDO) #3 (0 ){
}
}