大神仙，老神仙，不大不小中神仙，给看看呗.为何继承了就没数据值了呢。小弟我啥没理解呢

程序员文章站 2022-06-01 12:31:13

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大神仙，老神仙，不大不小中神仙，给看看呗.为何继承了就没数据值了呢。我啥没理解呢？

本帖最后由 bixuewei 于 2013-08-03 23:25:10 编辑


$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);