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 2022-06-16 11:57:10

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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);