修改密码

}
//用于改变密码修改
public function changPsw($username,$oldpassword,$newpassword){
if($oldpassword===$newpassword){
echo "<h6>修改后的密码与原来的密码一致，无效！</h6>";
}
if(!$this->UserExit($username,$oldpassword)){
return false;
}else{
$condition['Password']=$newpassword;
$data['Username']=$username;
if($this->where($data)->save($condition)){
echo "密码更新成功！";
}else{
echo "更新失败";
}
}
}
public function UserExit($username,$oldpassword){
// echo "daoda UserExit";
$condition['Username'] = $username;
$condition['Password'] = $oldpassword;
$information=$this->where($condition)->select();
//dump($information);
//echo " daoda UserExit11";
if(!empty($information)){
return true;
}else{
return false;
}
}