セッション練習

これは知識点の小さな練習です.

sessionTest     ";}

	public function initSession(){
		//  (GC)"     "   "      "    PHP.INI  
		//    
		ini_set('session.gc_probability','1');//   /  
		ini_set('session.gc_divisor','1');//  /  
		//    
		ini_set('session.gc_maxlifetime','1440');//      

		//  session   
		
		session_set_save_handler(
			array($this,'uBegin'), 
			array($this,'uEnd'), 
			array($this,'uRead'), 
			array($this,'uWrite'), 
			array($this,'uDelete'), 
			array($this,'uGC')
		);

		ini_set('session.save_handler', 'user');

		//  
		session_start();
	}
	//1.  
	//       :session_start();
	//      bool
	public function ubegin(){echo "
begin";return true;}

	//2.  
	//      bool
	public function uEnd(){echo "
end";return true;}

	//3. 
	//       :session_start();
	//   :            
	public function uRead($sess_id){
		echo "
read sess_id : ".$sess_id;
		//return '$sess_id';
		//    OR
		return '';
	}

	//       :session_start();
	//      bool
	public function uWrite($sess_id,$sess_content){
		echo "
Write ID : ".$sess_id." / content : ".$sess_content;
		return true;
	}


	//       :     ----session_destroy();
	//      bool
	public function uDelete($sess_id){echo "
delete";return true;}


	//       :session_start();       
	//         session_gc();
	//      bool
	public function uGC(){echo "
UC";return true;}
}

$op=new sessionTest();
$op->initSession();

$_SESSION['date']='a2018/05/05';

//session_start();
//echo "
";
var_dump($_SESSION);
//echo "
 ";
//session_destroy();