PHP-curl implements http and https requests through GET or POST

/**
 * curl模拟get进行 http 或 https url请求(可选附带cookie)
 * @parambool $type请求类型：true为https请求,false为http请求 
 * @paramstring $url请求地址
 * @paramstring$cookie cookie字符串
 * @returnstring返回字符串
 */
function curl_get($type, $url, $cookie) {//type与url为必传、若无cookie则传空字符串
  if (empty($url)) {
         return false;
     }
     $ch = curl_init();//初始化curl
     curl_setopt($ch, CURLOPT_URL,$url);//抓取指定网页
     curl_setopt($ch, CURLOPT_HEADER, 0);//设置header
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
if($type){  //判断请求协议http或https
     curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查
     curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);  // 从证书中检查SSL加密算法是否存在
}
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
if(!empty($cookie))curl_setopt($ch,CURLOPT_COOKIE,$cookie);  //设置cookie
     $data = curl_exec($ch);//运行curl
     curl_close($ch);
     return $data;
}

/**
 * curl模拟post进行 http 或 https url请求(可选携带表单,cookie)
 * @parambool $type请求类型：true为https请求,false为http请求
 * @paramstring$url请求地址
 * @paramarray $post_data请求表单数据array("key1"=>"value1","key2"=>"value2"),表单以数组方式传输
 * @paramstring$cookiecookie字符串 
 * @returnstring返回字符串
 */
function curl_post($type, $url, $post_data, $cookie) {//type与url为必传  ,表单post_data数组,和cookie字符串选传
  if (empty($url)) {
         return false;
     }
    if(!empty($post_data)){
     $params = '';
      foreach ( $post_data as $k => $v ) 
      { 
          $params.= "$k=" . urlencode($v). "&" ;
      }
      $params = substr($params,0,-1);
    } 
     $ch = curl_init();//初始化curl
     curl_setopt($ch, CURLOPT_URL,$url);//抓取指定网页
     curl_setopt($ch, CURLOPT_HEADER, 0);//设置header
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
if($type){  //判断请求协议http或https
     curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查
     curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);  // 从证书中检查SSL加密算法是否存在
}
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); // 模拟用户使用的浏览器
if(!empty($cookie))curl_setopt($ch,CURLOPT_COOKIE,$cookie);  //设置cookie
     if(!empty($post_data))curl_setopt($ch, CURLOPT_POSTFIELDS, $params); //设置表单
curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
     $data = curl_exec($ch);//运行curl
     curl_close($ch);
     return $data;
}