PHP教程：使用Thinkphp框架开发移动端接口

PHP实战
<?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;
  }
}

PHP实战
/**
  * 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(+_+)!');
    }
  }

PHP实战
/**
  * 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;
  }

PHP实战
{
  "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"
    ]
  }
}

PHP实战
function ismobile() {
  // 如果有HTTP_X_WAP_PROFILE则一定是移动设备
  if (isset ($_SERVER['HTTP_X_WAP_PROFILE']))
    return true;
  
  //此条摘自TPM智能切换模板引擎,适合TPM开发
  if(isset ($_SERVER['HTTP_CLIENT']) &&'PhoneClient'==$_SERVER['HTTP_CLIENT'])
    return true;
  //如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
  if (isset ($_SERVER['HTTP_VIA']))
    //找不到为flase,否则为true
    return stristr($_SERVER['HTTP_VIA'], 'wap') ? true : false;
  //判断手机发送的客户端标志,兼容性有待提高
  if (isset ($_SERVER['HTTP_USER_AGENT'])) {
    $clientkeywords = array(
      'nokia','sony','ericsson','mot','samsung','htc','sgh','lg','sharp','sie-','philips','panasonic','alcatel','lenovo','iphone','ipod','blackberry','meizu','android','netfront','symbian','ucweb','windowsce','palm','operamini','operamobi','openwave','nexusone','cldc','midp','wap','mobile'
    );
    //从HTTP_USER_AGENT中查找手机浏览器的关键字
    if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
      return true;
    }
  }
  //协议法,因为有可能不准确,放到最后判断
  if (isset ($_SERVER['HTTP_ACCEPT'])) {
    // 如果只支持wml并且不支持html那一定是移动设备
    // 如果支持wml和html但是wml在html之前则是移动设备
    if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {
      return true;
    }
  }
  return false;
 }

PHP实战
Class CommonAction extends Action{
  Public function _initialize(){
    //移动设备浏览,则切换模板
    if (ismobile()) {
      //设置默认默认主题为 Mobile
      C('DEFAULT_THEME','Mobile');
    }
    //............你的更多代码.......
  }
 }