curl请求/签名

签名规则：

第一步，

◆ 参数名ASCII码从小到大排序（字典序）；

◆ 验证调用返回或主动通知签名时，传送的sign参数不参与签名，将生成的签名与该sign值作校验。

第二步，

在stringA最后拼接上app_secret得到stringSignTemp字符串，并对stringSignTemp进行MD5运算，得到sign

代码：

function make_sign($data, $Secret) {

 ?????ksort($data);
$kv_arr = array();
 ?????foreach ($data as $key => $val) {
 ?????????if ($key == "sign" || $val == ‘‘) {
 ?????continue;
 ??}
 ?????????array_push($kv_arr, $key . ‘=‘ . $val);
 ?????}

$md5_string = implode(‘&‘, $kv_arr);
 ?????$key_str = $md5_string . ‘&key=‘ . $Secret;

 ?????return strtolower(md5($key_str));
 ?} 

接收json参数请求：

$req_param = json_decode(file_get_contents(‘php://input‘), true);

发送post json数据请求：

function curlJson($url, $params=array())
{
 ?
 ??$query = json_encode($params);
 ??
 ??$header = array(
 ???????‘Content-Type: application/json‘,
 ?‘Content-Length: ‘ . strlen($query)
 ??);
 ??
 ??$bin = fetch_curl($url,array(
 ???????CURLOPT_POST => true,
 ???????CURLOPT_POSTFIELDS => $query, //注意CURL无法转换数组成为name[]=value&这种格式
 ???????CURLOPT_TIMEOUT => 60,
 ???????CURLOPT_HTTPHEADER => $header,
 ??????), $http_code);
 ???return $bin;
}

/**
 * @static
 * 获取一个URL地址返回的内容
 * @param string $url
 * @param array $other_curl_opt 设置CURL选项
 * @return mixed 成功则返回string，否则返回false
 */
function fetch_curl($url, $other_curl_opt = array(), &$http_code = 0)
{
 ???$curl_opt = array(
 ???????CURLOPT_URL => $url,
 ???????CURLOPT_AUTOREFERER => true, //自动添加referer链接
 ???????CURLOPT_RETURNTRANSFER => true, //true: curl_exec赋值方式，false：curl_exec直接输出结果
 ???????CURLOPT_FOLLOWLOCATION => false, //自动跟踪301,302跳转
 ???????//CURLOPT_HTTPGET => TRUE, //默认为GET，无需设置
 ???????//CURLOPT_POST => TRUE,
 ???????//CURLOPT_POSTFIELDS => ‘username=abc&passwd=bcd‘,//也可以为数组array(‘username‘=>‘abc‘,‘passwd‘=>‘bcd‘)
 ???????CURLOPT_CONNECTTIMEOUT => 15, //秒
 ???????CURLOPT_USERAGENT => self::HTTP_AGENT,
 ???????//CURLOPT_COOKIE => ‘‘,
 ???);
 ???
 ???if($other_curl_opt)
 ???foreach ($other_curl_opt as $key => $val)
 ???????$curl_opt[$key] = $val;
 ???
 ???$ch = curl_init();
 ???curl_setopt_array($ch, $curl_opt);
 ???$contents = curl_exec($ch);
 ???$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 ???curl_close($ch);
 ???
 ???return $contents;
}

function curlPost($url, $params=array())
 ??{
 ??????
 ??????$query = http_build_query($params);
 ??????$header = array(
 ??????‘Content-Type: application/x-www-form-urlencoded‘,
 ??????‘Content-Length: ‘ . strlen($query)
 ??????);

 ??????$bin = Net::fetch($url,array(
 ??????????CURLOPT_POST => true,
 ??????????CURLOPT_POSTFIELDS => $query, //注意CURL无法转换数组成为name[]=value&这种格式
 ??????????CURLOPT_TIMEOUT => 60,
 ??????????
 ??????????), $http_code);
 ??????return $bin;
 ??}

function curlhttps($url, $params=array(),$method=‘GET‘)
 ??{
 ??????$header = array(
 ??????‘Content-Type: application/x-www-form-urlencoded;charset=utf-8‘,
 ??????);
 ??????$curl = curl_init(); // 启动一个CURL会话 ?
 ???curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址 ?
 ???curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 对认证证书来源的检查 ?
 ???curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在 ?
 ???//curl_setopt($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($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求 ?
 ???????curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
 ???????if ($params){ ?
 ??????????$query = http_build_query($params);
 ???????????curl_setopt($curl, CURLOPT_POSTFIELDS, $query); // Post提交的数据包 ?
 ???????} 
 ???} ?
 ???curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 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 ?
 ???$tmpInfo = curl_exec($curl); // 执行操作 ?
 ???curl_close($curl); // 关闭CURL会话 ?
 ???return $tmpInfo; // 返回数据 ?
 ??}

function curlheaderhttps($url, $params=array(),$method=‘GET‘)
 ??{
 ??????$header[] = ‘Content-Type: multipart/form-data;charset=utf-8‘;
 ??????foreach ($params as $k=>$val){
 ?????????$header[] = "$k:$val";
 ??????}
 ??????
 ??????$curl = curl_init(); // 启动一个CURL会话 ?
 ???curl_setopt($curl, CURLOPT_URL, $url); // 要访问的地址 ?
 ???curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 对认证证书来源的检查 ?
 ???curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false); // 从证书中检查SSL加密算法是否存在 ?
 ???//curl_setopt($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($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求 ?
 ???????curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
 ???????if ($params){ ?
 ??????????$query = http_build_query($params);
 ???????????curl_setopt($curl, CURLOPT_POSTFIELDS, $query); // Post提交的数据包 ?
 ???????} 
 ???} ?
 ???curl_setopt($curl, CURLOPT_TIMEOUT, 30); // 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 ?
 ???$tmpInfo = curl_exec($curl); // 执行操作 ?
 ???curl_close($curl); // 关闭CURL会话 ?
 ???return $tmpInfo; // 返回数据 ?
 ??}

function curlFilePost($url, $header=array(),$fp,$size)
 ??{
 ??????
 ?????
 ??????if(!$fp)exit(‘文件为空‘);
 ??????if(!$header){
 ??????$header = array(
 ?????????‘Content-Type: application/x-www-form-urlencoded‘,
 ?????????‘Content-Length: ‘ . strlen($query)
 ??????);
 ??????}
 ??????
 ??????$bin = Net::fetch($url,array(
 ??????????CURLOPT_POST => true,
 ??????????CURLOPT_TIMEOUT => 60,
 ??????????CURLOPT_UPLOAD => 1,
 ??????????CURLOPT_INFILE => $fp,
 ??????????CURLOPT_INFILESIZE => $size,
 ??????????CURLOPT_HTTPHEADER => $header,
 ??????????), $http_code);
 ??????return $bin;
 ??}