Http.php

<?php
namespace auxiliary;
 
class Http
{

    public static function httpRequest($url, $data=[], $method='GET',$headers = []){
        $headers = self::headerDispose($headers);
        $curl = self::getCurl($url,$data,$method,$headers);
        try {
          $result = curl_exec($curl);    //执行操作
          if (curl_errno($curl)) echo curl_error($curl);
          return $result;
        } catch (Exception $e) {
          echo ("HTTP异常:".(string)$e);
        }finally{
          curl_close($curl); 
        } 
    }

      private static function arrToStr($url,$arr){
        $ret = "";
        foreach ($arr as $key => $value) {
            $ret = $ret."&".$key."=".$value;
        }
        if ($ret !== "") $url = $url . "?" . $ret;
        return $url;
      }

      private static function getCurl($url, $data, $method,$headers){
        $curl = curl_init();  // 启动一个CURL会话
        if (count($headers) >= 1) curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
        if($method=='GET') $url = $url."?".self::arrToStr($url, $data);
        curl_setopt($curl, CURLOPT_URL, $url);  // 要访问的地址
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);  // 对认证证书来源的检查
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);  // 从证书中检查SSL加密算法是否存在
        //curl_setopt($curl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);  // 模拟用户使用的浏览器
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1); // 使用自动跳转 
        curl_setopt($curl, CURLOPT_AUTOREFERER, 1);  // 自动设置Referer
        if($method=='POST'){
            curl_setopt($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求
            if ($data != '')  curl_setopt($curl, CURLOPT_POSTFIELDS, $data);  // Post提交的数据包
        }
        curl_setopt($curl, CURLOPT_TIMEOUT, 5);  // 设置超时限制防止死循环
        curl_setopt($curl, CURLOPT_HEADER, 0);  // 显示返回的Header区域内容
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);   // 获取的信息以文件流的形式返回
        return $curl;
      }


      private static function headerDispose($headers){
        $headerDisposeCurl = [];
        if (!isset($headers['X-FORWARDED-FOR'])) {
            $ipArr = [mt_rand(1, 255), mt_rand(1, 255), mt_rand(1, 255), mt_rand(1, 255)];
            $headers["X-FORWARDED-FOR"] = $ipArr[0] . "." . $ipArr[1] . "." . $ipArr[2] . "." . $ipArr[3];
            $headers["CLIENT-IP"] = $headers["X-FORWARDED-FOR"];
        }
        foreach ($headers as $key => $value) {
            array_push($headerDisposeCurl, $key . ':' . $value);
        }
        return $headerDisposeCurl;
      }

}