function getEmpById($id){
$sql="select * from empmanage where id=$id";
$arr=$this->db_getAll($sql);
$emp = new Emp();
$emp->setId($arr[0]['id']);
$emp->setName($arr[0]['name']);
$emp->setGrade($arr[0]['grade']);
$emp->setEmail($arr[0]['email']);
$emp->setSalary($arr[0]['salary']);
return $emp;
}
public function updateEmp($id)
{
$sql = "select * from emp where id={$id}";
$sqlHelper = new SqlHelper();
$arr = $sqlHelper->execute_dql2($sql);
$sqlHelper->close_connect();
$emp = new Emp();
$emp->setId($arr['0']['id']);
$emp->setName($arr['0']['name']);
$emp->setGrade($arr['0']['grade']);
$emp->setEmail($arr['0']['email']);
//return $arr;
return $emp;
}
function getEmpById($id)
{
$sql = "select * from emp where id={$id}";
$sqlHelper = new SqlHelper();
$arr = $sqlHelper->execute_dql2($sql);
$sqlHelper->close_connect();
//二次封装.$arr->Emp对象实例
//创建Emp对象实例
$emp = new Emp();
$emp->setId($arr[0]['id']);
$emp->setName($arr[0]['name']);
$emp->setGrade($arr[0]['grade']);
$emp->setEmail($arr[0]['email']);
return $emp;
}