curl post get封装

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<?php/** * curl post get封装 * @author zhoug * @date 2012-09-11 */class curl {   /**    *     * curl Post数据     * @param $url http地址    * @param  $timeout       默认请求超时    * 成功返回字符串    */   static function curl_get_contents($url, $timeout = 5){      $userAgent ='xx5.com PHP5 (curl) ' . phpversion();       $ch = curl_init();       curl_setopt($ch, CURLOPT_URL, $url);       curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);       curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);              @curl_setopt($ch, CURLOPT_DNS_USE_GLOBAL_CACHE, true);       curl_setopt($ch, CURLOPT_DNS_CACHE_TIMEOUT, 86400); // 缓存一天       $content = curl_exec($ch);            curl_close($ch);       return $content;   }   /**    *     * curl Post数据     * @param $url http地址    * @param $data    &链接的字符串或者数组    * @param $timeout 默认请求超时    * 成功返回字符串    */   static function curl_post_contents($url, $data = array(), $timeout=10){      $userAgent ='xx5.com PHP5 (curl) ' . phpversion();      $referer = $url;      if(!is_array($data) || !$url) return '';            $ch = curl_init();      curl_setopt($ch, CURLOPT_URL, $url);            //设置访问的url地址      curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);            //设置超时      curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);   //用户访问代理 User-Agent      curl_setopt($ch, CURLOPT_REFERER, $referer);      //设置 referer      curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);      //跟踪301      curl_setopt($ch, CURLOPT_POST, 1);             //指定post数据      curl_setopt($ch, CURLOPT_POSTFIELDS, $data);      //添加变量      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);      //返回结果      $content = curl_exec($ch);      curl_close($ch);      return $content;   }      static function makeQueryString($params)   {      if (is_string($params))         return $params;               $query_string = array();       foreach ($params as $key => $value)       {              array_push($query_string, rawurlencode($key) . '=' . rawurlencode($value));       }          $query_string = join('&', $query_string);       return $query_string;   }}
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