PHP编程：Thinkphp框架开发移动端接口(1)

<?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;
 }
}

/**
 * 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(+_+)!');
  }
 }

/**
 * 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;
 }

{
 "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"
  ]
 }
}