PHP与Cookie

在PHP中，创建Cookie的代码如下：

<?php
setcookie("user_id", "12345", time() + (86400 * 30), "/"); // 设置一个有效期为30天的Cookie
?>

在C++中，创建和读取Cookie的代码如下：

#include <iostream>
#include <ctime>
#include <curl/curl.h>
int main() {
    std::string user_id = "12345";
    std::string value = "67890";
    std::string url = "http://example.com"; // 目标URL
    std::string post_data = "user_id=" + user_id + "&value=" + value;
    CURL *curl = curl_easy_init();
    if(curl) {
        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post_data.c_str());
        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
        curl_easy_setopt(curl, CURLOPT_TIMEOUT, 30L);
        CURLcode res = curl_easy_perform(curl);
        if(res != CURLE_OK) {
            fprintf(stderr, &quot;curl_easy_perform() failed: %s\n&quot;, curl_easy_strerror(res));
        } else {
            curl_easy_cleanup(curl);
        }
    }
    // 读取Cookie
    std::string response = getenv("HTTP_COOKIE"); // 获取环境变量中的Cookie值
    if(response.empty()) {
        std::cout << "No Cookie found" << std::endl;
    } else {
        std::cout << "Cookie Value: " << response << std::endl;
    }
    curl_easy_cleanup(curl);
    return 0;
}