?php
namespace curl;
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2017/6/16
 * Time: 9:54
 */
class ApiClient
{
//請求的token
 const token='token_str';
 //請求url
 private $url;
 //請求的類型
 private $requestType;
 //請求的數據
 private $data;
 //curl實例
 private $curl;
 public $status;
 private $headers = array();
 /**
  * [__construct 構造方法, 初始化數據]
  * @param [type] $url  請求的服務器地址
  * @param [type] $requestType 發送請求的方法
  * @param [type] $data 發送的數據
  * @param integer $url_model 路由請求方式
  */
 public function __construct($url, $data = array(), $requestType = 'get') {
  //url是必須要傳的,并且是符合PATHINFO模式的路徑
  if (!$url) {
   return false;
  }
  $this->requestType = strtolower($requestType);
  $paramUrl = '';
  // PATHINFO模式
  if (!empty($data)) {
   foreach ($data as $key => $value) {
    $paramUrl.= $key . '=' . $value.'';
   }
   $url = $url .'?'. $paramUrl;
  }
  //初始化類中的數據
  $this->url = $url;
  $this->data = $data;
  try{
   if(!$this->curl = curl_init()){
    throw new Exception('curl初始化錯誤：');
   };
  }catch (Exception $e){
   echo 'pre>';
   print_r($e->getMessage());
   echo '/pre>';
  }
  curl_setopt($this->curl, CURLOPT_URL, $this->url);
  curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, 1);
  //curl_setopt($this->curl, CURLOPT_HEADER, 1);
 }
 /**
  * [_post 設置get請求的參數]
  * @return [type] [description]
  */
 public function _get() {
 }
 /**
  * [_post 設置post請求的參數]
  * post 新增資源
  * @return [type] [description]
  */
 public function _post() {
  curl_setopt($this->curl, CURLOPT_POST, 1);
  curl_setopt($this->curl, CURLOPT_POSTFIELDS, $this->data);
 }
 /**
  * [_put 設置put請求]
  * put 更新資源
  * @return [type] [description]
  */
 public function _put() {
  curl_setopt($this->curl, CURLOPT_CUSTOMREQUEST, 'PUT');
 }
 /**
  * [_delete 刪除資源]
  * delete 刪除資源
  * @return [type] [description]
  */
 public function _delete() {
  curl_setopt($this->curl, CURLOPT_CUSTOMREQUEST, 'DELETE');
 }
 /**
  * [doRequest 執行發送請求]
  * @return [type] [description]
  */
 public function doRequest() {
  //發送給服務端驗證信息
  if((null !== self::token)  self::token){
   $this->headers = array(
    'Client-Token:'.self::token,//此處不能用下劃線
    'Client-Code:'.$this->setAuthorization()
   );
  }
  //發送頭部信息
  $this->setHeader();
  //發送請求方式
  switch ($this->requestType) {
   case 'post':
    $this->_post();
    break;
   case 'put':
    $this->_put();
    break;
   case 'delete':
    $this->_delete();
    break;
   default:
    curl_setopt($this->curl, CURLOPT_HTTPGET, TRUE);
    break;
  }
  //執行curl請求
  $info = curl_exec($this->curl);
  //獲取curl執行狀態信息
  $this->status = $this->getInfo();
  return json_decode($info);
 }
 /**
  * 設置發送的頭部信息
  */
 private function setHeader(){
  curl_setopt($this->curl, CURLOPT_HTTPHEADER, $this->headers);
 }
 /**
  * 生成授權碼
  * @return string 授權碼
  */
 private function setAuthorization(){
  $authorization = md5(substr(md5(self::token), 8, 24).self::token);
  return $authorization;
 }
 /**
  * 獲取curl中的狀態信息
  */
 public function getInfo(){
  return curl_getinfo($this->curl);
 }
 /**
  * 關閉curl連接
  */
 public function __destruct(){
  curl_close($this->curl);
 }
}