$data['users'] = {something from databases};
$this->load->view('home/index',$data);

<div ng-controller="loadData">
   <ul>
    <!--1. 初始化的时候我们需要使用下面这句-->
    <?php foreach(users as user):?>
    <li><?=$user->name?>:<?=$user->email?><li>
    <?php endforeach?>
    <!--2. 但是结束后 我们需要使用这句 通过ajax 更新 -->
    <li ng-repeat="user in users">{{user.name}}:{{user.email}}</li>
  </ul>
</div>

<script>
 var usersPrefetch = [
  <?php foreach(users as user):?>
  {"name": "<?=$user->name?>", "email": "<?=$user->email?>"},
  <?php endforeach?>
 ];
</script>

<ul ng-if="!users">
 <?php foreach(users as user):?>
 <li><?=$user->name?>:<?=$user->email?><li>
 <?php endforeach?>
</ul>
<ul ng-if="users">
 <li ng-repeat="user in users">{{user.name}}:{{user.email}}</li>
</ul>