使用Thinkphp框架开发移动端接口【1】

1. [代码]使用TP框架时 放在common文件夹下文件名就叫function.php    

<?php
/**
 * Created by zhangkx
 * Email: zkx520tnhb@163.com
 * Date: 2015/8/1
 * Time: 23:15
 */
  
/*************************** api开发辅助函数 **********************/
  
/**
 * @param null $msg  返回正确的提示信息
 * @param flag success CURD 操作成功
 * @param array $data 具体返回信息
 * Function descript: 返回带参数，标志信息，提示信息的json 数组
 *
 */
function returnApiSuccess($msg = null,$data = array()){
  $result = array(
    'flag' => 'Success',
    'msg' => $msg,
    'data' =>$data
  );
  print json_encode($result);
}
  
/**
 * @param null $msg  返回具体错误的提示信息
 * @param flag success CURD 操作失败
 * Function descript:返回标志信息 ‘Error'，和提示信息的json 数组
 */
function returnApiError($msg = null){
  $result = array(
    'flag' => 'Error',
    'msg' => $msg,
  );
  print json_encode($result);
}
  
/**
 * @param null $msg  返回具体错误的提示信息
 * @param flag success CURD 操作失败
 * Function descript:返回标志信息 ‘Error'，和提示信息，当前系统繁忙，请稍后重试；
 */
function returnApiErrorExample(){
  $result = array(
    'flag' => 'Error',
    'msg' => '当前系统繁忙，请稍后重试！',
  );
  print json_encode($result);
}
  
/**
 * @param null $data
 * @return array|mixed|null
 * Function descript: 过滤post提交的参数；
 *
 */
  
 function checkDataPost($data = null){
  if(!empty($data)){
    $data = explode(',',$data);
    foreach($data as $k=>$v){
      if((!isset($_POST[$k]))||(empty($_POST[$k]))){
        if($_POST[$k]!==0 && $_POST[$k]!=='0'){
          returnApiError($k.'值为空！');
        }
      }
    }
    unset($data);
    $data = I('post.');
    unset($data['_URL_'],$data['token']);
    return $data;
  }
}
  
/**
 * @param null $data
 * @return array|mixed|null
 * Function descript: 过滤get提交的参数；
 *
 */
function checkDataGet($data = null){
  if(!empty($data)){
    $data = explode(',',$data);
    foreach($data as $k=>$v){
      if((!isset($_GET[$k]))||(empty($_GET[$k]))){
        if($_GET[$k]!==0 && $_GET[$k]!=='0'){
          returnApiError($k.'值为空！');
        }
      }
    }
    unset($data);
    $data = I('get.');
    unset($data['_URL_'],$data['token']);
    return $data;
  }
}

2. [代码]查询单个果品详细信息    

/**
  * 发布模块
  * 
  * 获取信息单个果品详细信息
  *
  */
  public function getMyReleaseInfo(){
    //检查是否通过post方法得到数据
    checkdataPost('id');
    $where['id'] = $_POST['id'];
    $field[] = 'id,fruit_name,high_price,low_price,address,size,weight,fruit_pic,remark';
    $releaseInfo = $this->release_obj->findRelease($where,$field);
    $releaseInfo['remark'] = mb_substr($releaseInfo['remark'],0,49,'utf-8').'...';
    //多张图地址按逗号截取字符串，截取后如果存在空数组则需要过滤掉
    $releaseInfo['fruit_pic'] = array_filter(explode(',', $releaseInfo['fruit_pic']));
    $fruit_pic = $releaseInfo['fruit_pic'];unset($releaseInfo['fruit_pic']);
    //为图片添加存储路径
    foreach($fruit_pic as $k=>$v ){
      $releaseInfo['fruit_pic'][] = 'http://'.$_SERVER['HTTP_HOST'].'/Uploads/Release/'.$v;
    }
    if($releaseInfo){
      returnApiSuccess('',$releaseInfo);
    }else{
      returnApiError( '什么也没查到(+_+)！');
    }
  }

3. [代码]findRelease() 方法的model    

/**
  * 查询一条数据
  */
  public function findRelease($where,$field){
    if($where['status'] == '' || empty($where['status'])){
      $where['status'] = array('neq','9');
    }
    $result = $this->where($where)->field($field)->find();
    return $result;
  }

4. [代码]app端接收到的数据（解码json之后）    

{
  "flag": "success",
  "message": "",
  "responseList": {
    "id": "2",
    "fruit_name": "苹果",
    "high_price": "8.0",
    "low_price": "5.0",
    "address": "天津小白楼水果市场",
    "size": "2.0",
    "weight": "2.0",
    "remark": "急需...",
    "fruit_pic": [
      "http://fruit.txunda.com/Uploads/Release/201508/55599e7514815.png",
      "http://fruit.txunda.com/Uploads/Release/201508/554f2dc45b526.jpg"
    ]
  }
}