解决PHP cURL获取Gzip编码HTML响应乱码问题

<?php

$header_request = array (
    "accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "accept-encoding: gzip", // 关键：告知服务器接受Gzip编码
    "accept-language: id-ID,id;q=0.9,en-US;q=0.8,en;q=0.7",
    "cookie: csrf_cookie_name=9316014c9d7860019da66a78edfaf926; _data_pop=115-1_274-1; ci_session=607f0be4e56b8b08ee2398b892f115c9e660192e; _data_cpc=1-2_15-2_190-4",
    "referer: https://ptc4btc.com/",
    "user-agent: Mozilla/5.0 (Linux; Android 7.0; Moto C Plus) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.56 Mobile Safari/537.36",
    "upgrade-insecure-requests: 1"
);

$ch = curl_init();

curl_setopt_array($ch, array(
      CURLOPT_URL => "https://ptc4btc.com/dashboard",
      CURLOPT_RETURNTRANSFER => 1, // 返回字符串，而不是直接输出
      CURLOPT_FOLLOWLOCATION => 1, // 遵循重定向
      CURLOPT_HTTPHEADER => $header_request, // 设置自定义请求头
      CURLOPT_SSL_VERIFYPEER => 0, // 禁用SSL证书验证 (生产环境不推荐)
      CURLOPT_SSL_VERIFYHOST => 2, // 验证SSL主机名 (与CURLOPT_SSL_VERIFYPEER=0冲突，通常设为0或不设)
  ));

$exec = curl_exec($ch); // 执行cURL请求
echo($exec); // 直接输出，如果内容是Gzip压缩的，则会显示乱码

curl_close($ch); // 关闭cURL会话，注意这里应传入$ch而不是$exec

<?php

// ... (CURLOPT_HTTPHEADER 和 curl_setopt_array 部分与上述代码相同) ...
$header_request = array (
    "accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "accept-encoding: gzip",
    "accept-language: id-ID,id;q=0.9,en-US;q=0.8,en;q=0.7",
    "cookie: csrf_cookie_name=9316014c9d7860019da66a78edfaf926; _data_pop=115-1_274-1; ci_session=607f0be4e56b8b08ee2398b892f15c9e660192e; _data_cpc=1-2_15-2_190-4",
    "referer: https://ptc4btc.com/",
    "user-agent: Mozilla/5.0 (Linux; Android 7.0; Moto C Plus) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.56 Mobile Safari/537.36",
    "upgrade-insecure-requests: 1"
);

$ch = curl_init();

curl_setopt_array($ch, array(
      CURLOPT_URL => "https://ptc4btc.com/dashboard",
      CURLOPT_RETURNTRANSFER => 1,
      CURLOPT_FOLLOWLOCATION => 1,
      CURLOPT_HTTPHEADER => $header_request,
      CURLOPT_SSL_VERIFYPEER => 0,
      CURLOPT_SSL_VERIFYHOST => 0, // 建议：如果CURLOPT_SSL_VERIFYPEER为0，CURLOPT_SSL_VERIFYHOST也设为0
  ));

$exec = curl_exec($ch);

// 检查cURL执行是否成功
if (curl_errno($ch)) {
    echo 'cURL Error: ' . curl_error($ch);
} else {
    // 获取响应头信息，判断是否为Gzip编码
    $info = curl_getinfo($ch);
    $content_encoding = $info['content_encoding'] ?? ''; // PHP 7+

    // 如果响应头明确指出是gzip编码，则进行解压
    if (strpos($content_encoding, 'gzip') !== false) {
        $decoded_html = gzdecode($exec);
        echo $decoded_html;
    } else {
        // 否则直接输出原始响应（可能已经是未压缩的HTML）
        echo $exec;
    }
}

curl_close($ch);