请教用名称调用函数和传参

	class class_a	{		public $var_a	= 0;				public function fun_1 ( $var )		{			var_dump( $this->var_a + $var );		}	};		$obj_a	= new class_a();	$obj_a->var_a	= 6;		call_user_func_array( array( 'class_a', 'fun_1' ), array( 5 ) );

	class class_a	{		public $var_a	= 0;				public function fun_1 ( $var )		{			var_dump( $this->var_a + $var );		}	};		$obj_a	= new class_a();	$obj_a->var_a	= 6;		call_user_func_array( array($obj_a, 'fun_1' ), array( 5 ) );