使用PHP做移动端 接口开发工具方法

<?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 $v){
            if((!isset($_POST[$v]))||(empty($_POST[$v]))){
                if($_POST[$v]!==0 && $_POST[$v]!=='0'){
                    returnApiError($v.'值为空！');
                }
            }
        }
        unset($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 $v){
            if((!isset($_GET[$v]))||(empty($_GET[$v]))){
                if($_GET[$v]!==0 && $_GET[$v]!=='0'){
                    returnApiError($v.'值为空！');
                }
            }
        }
        unset($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"
        ]
    }
}

{"flag":"success","message":"","responseList":{"id":"2","fruit_name":"\u82f9\u679c","high_price":"8.0","low_price":"5.0","address":"\u5929\u6d25\u5c0f\u767d\u697c\u6c34\u679c\u5e02\u573a","size":"2.0","weight":"2.0","remark":"\u6025\u9700...","fruit_pic":["http:\/\/fruit.txunda.com\/Uploads\/Release\/201508\/55599e7514815.png","http:\/\/fruit.txunda.com\/Uploads\/Release\/201508\/554f2dc45b526.jpg"]}}