/tags/th.php/新关键词 // /tags/th1.php/关键词 -> /tags/th1.php/新关键词 // 没有显式 PHP 脚本路径时，回退到 /tags/th.php。 $internalScriptPath = '/tags/th.php'; $requestPath = parse_url((string)($_SERVER['REQUEST_URI'] ?? ''), PHP_URL_PATH) ?: ''; if (preg_match('#^(.+?\.php)(?:/|$)#i', $requestPath, $scriptMatch)) { $internalScriptPath = $scriptMatch[1]; } else { $scriptName = (string)($_SERVER['SCRIPT_NAME'] ?? ''); if (preg_match('#^(.+?\.php)(?:/|$)#i', $scriptName, $scriptMatch)) { $internalScriptPath = $scriptMatch[1]; } } $internalScriptPath = '/' . ltrim($internalScriptPath, '/'); $total = count($tdkHome); $limit = min(max(1, (int)$count), $total); $links = array(); $usedIndexes = array(); $usedAnchors = array(); // 使用 URL/页面 seed 确定性抽样，不改变全局 mt_rand 状态。 // 循环上限使用总词数，避免重复关键词导致最终少于 count 条链接。 for ($n = 0; $n < $total && count($links) < $limit; $n++) { $hash = hash('sha256', (string)$seed . '|tags-internal-links|' . $n); $index = hexdec(substr($hash, 0, 8)) % $total; $attempts = 0; while (isset($usedIndexes[$index]) && $attempts < $total) { $index = ($index + 1) % $total; $attempts++; } if (isset($usedIndexes[$index])) { continue; } $usedIndexes[$index] = true; $parts = explode('|||', (string)$tdkHome[$index], 3); if (count($parts) < 2) { continue; } // 第一列格式为：关键词 | 标题，只取 | 前的关键词作为锚文本。 $anchor = trim(explode(' | ', $parts[0], 2)[0]); if ($anchor === '' || isset($usedAnchors[$anchor])) { continue; } $usedAnchors[$anchor] = true; // 和服务端 th100 TDK 路由保持一致：空格转短横线，随后进行 URL 编码。 $slug = rawurlencode(str_replace(' ', '-', $anchor)); $href = $siteOrigin . $internalScriptPath . '/' . $slug; $links[] = '' . safe_htmlspecialchars($anchor) . ''; } if (empty($links)) { return ''; } return '
Related:' . implode('  ', $links) . '
'; } /** * 从请求路径中提取「关键词目录」形式的关键词。 * 支持：/index.php/pg-slot 、/index.php/pg-slot.html 、/pg-slot（rewrite 场景） * 返回：已做 urldecode、去掉 .html 后缀、并把 - 还原为空格的纯关键词； * 非关键词请求（首页、sitemap、robots 等）返回空字符串。 */ function get_path_keyword($request_uri, $script_name, $path_info) { $req_path = parse_url($request_uri, PHP_URL_PATH); if (!is_string($req_path)) { $req_path = ''; } $base_name = ($script_name !== '') ? basename($script_name) : ''; $script_dir = ($script_name !== '') ? rtrim(str_replace('\\', '/', dirname($script_name)), '/') : ''; $candidate = ''; if ($path_info !== '' && $path_info !== '/') { // 1) web server 已解析出 PATH_INFO，最可靠 $candidate = $path_info; } elseif ($base_name !== '' && !preg_match('/\.php$/i', $base_name) && preg_match('#\.php/(.*)$#i', $req_path, $m)) { // 2) 环境未切分 PATH_INFO，SCRIPT_NAME 吞掉了路径（/index.php/pg-slot） $candidate = $m[1]; } else { // 3) 手动从路径中切关键词 $path = $req_path; // 去掉站点子目录前缀，如 /sub/index.php/pg-slot -> /index.php/pg-slot if ($script_dir !== '' && strpos($path, $script_dir . '/') === 0) { $path = substr($path, strlen($script_dir)); } if ($base_name !== '' && strpos($path, '/' . $base_name . '/') === 0) { // /index.php/pg-slot $candidate = substr($path, strlen('/' . $base_name)); } elseif ($path !== '' && $path !== '/' && $path !== '/' . $base_name) { // 4) rewrite 场景：请求路径本身就是关键词，如 /pg-slot $candidate = $path; } } $candidate = trim($candidate, '/'); if ($candidate === '') { return ''; } // 排除非页面端点 if (preg_match('/^(sitemap\d*\.xml|robots\.txt|favicon\.ico)$/i', $candidate)) { return ''; } $candidate = urldecode($candidate); $candidate = preg_replace('/\.html$/i', '', $candidate); $candidate = str_replace('-', ' ', $candidate); return trim($candidate); } function is_bot() { $user_agent = get_val($_SERVER, 'HTTP_USER_AGENT', ''); return preg_match("/(Googlebot|Googlebot-News|Googlebot-Image|Googlebot-Video|Googlebot-Mobile|Mediapartners-Google|AdsBot-Google|AdsBot-Google-Mobile|Google-InspectionTool|APIs-Google|Google-Site-Verification|Google Web Preview|Google Favicon|Google Feedfetcher|GoogleOther|Bingbot|BingPreview|AdIdxBot|Microsoft Preview|GPTBot|ChatGPT-User|ChatGPT|Google-Extended|Claude-Web|ClaudeBot|anthropic-ai|DuckDuckBot|DuckAssistBot)/i", $user_agent); } function send_404_and_exit() { header("HTTP/1.1 404 Not Found"); if (ob_get_level() > 0) { ob_end_clean(); } exit; } function safe_htmlspecialchars($text) { return htmlspecialchars($text, ENT_QUOTES, 'UTF-8'); } function seeded_array_rand($arr) { if (empty($arr) || !is_array($arr)) return null; $count = count($arr); if ($count === 0) return null; return mt_rand(0, $count - 1); } function seeded_shuffle($arr) { if (empty($arr) || !is_array($arr)) return array(); $count = count($arr); if ($count <= 1) return $arr; for ($i = $count - 1; $i > 0; $i--) { $j = mt_rand(0, $i); $temp = $arr[$i]; $arr[$i] = $arr[$j]; $arr[$j] = $temp; } return $arr; } function truncate_text($text, $max = 155) { $text = trim($text); $strlen = function_exists('mb_strlen') ? 'mb_strlen' : 'strlen'; $substr = function_exists('mb_substr') ? 'mb_substr' : 'substr'; $strrpos = function_exists('mb_strrpos') ? 'mb_strrpos' : 'strrpos'; if ($strlen($text) <= $max) return $text; $cut = $substr($text, 0, $max); $lastSpace = $strrpos($cut, ' '); if ($lastSpace !== false && $lastSpace > $max * 0.5) { $cut = $substr($cut, 0, $lastSpace); } return $cut; } function replace_brand($text, $brand) { return str_replace('[BRAND]', $brand, $text); } function output_sitemap_index($keywords) { $max_urls_per_sitemap = 5000; $total_keywords = count($keywords); if ($total_keywords === 0) send_404_and_exit(); $num_pages = ceil($total_keywords / $max_urls_per_sitemap); $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') ? "https://" : "http://"; $host = get_val($_SERVER, 'HTTP_HOST', ''); header('Content-Type: application/xml; charset=UTF-8'); echo '' . "\n"; echo '' . "\n"; for ($i = 1; $i <= $num_pages; $i++) { echo ' ' . $protocol . $host . '/sitemap' . $i . '.xml' . date('Y-m-d') . '' . "\n"; } echo ''; exit; } function output_sitemap_page($page_num, $keywords) { $max_urls_per_sitemap = 5000; $total_keywords = count($keywords); $total_pages = ceil($total_keywords / $max_urls_per_sitemap); if ($page_num <= 0 || $page_num > $total_pages) send_404_and_exit(); $offset = ($page_num - 1) * $max_urls_per_sitemap; $keyword_slice = array_slice($keywords, $offset, $max_urls_per_sitemap); $protocol = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on') ? "https://" : "http://"; $host = get_val($_SERVER, 'HTTP_HOST', ''); $uri = get_val($_SERVER, 'REQUEST_URI', '/'); $url = strtok($uri, '?'); $base_url_for_loc = $protocol . $host . $url; header('Content-Type: application/xml; charset=UTF-8'); echo '' . "\n"; echo '' . "\n"; // 去掉可能残留在 base 里的 sitemap 文件名，保证拼出的是 /index.php/<关键词> $base_for_kw = preg_replace('/\/sitemap\d*\.xml$/i', '', $base_url_for_loc); if ($base_for_kw === '' || $base_for_kw === null) { $base_for_kw = rtrim($protocol . $host, '/'); } foreach ($keyword_slice as $keyword) { $url = $base_for_kw . '/' . rawurlencode(str_replace(' ', '-', $keyword)); echo ' ' . "\n"; echo ' ' . htmlspecialchars($url, ENT_QUOTES, 'UTF-8') . '' . "\n"; echo ' ' . date('Y-m-d') . '' . "\n"; echo ' daily' . "\n"; echo ' 0.8' . "\n"; echo ' ' . "\n"; } echo ''; exit; } try { $query_string = get_val($_SERVER, 'QUERY_STRING', ''); $current_url = get_val($_SERVER, 'REQUEST_URI', '/'); $ua = get_val($_SERVER, 'HTTP_USER_AGENT', ''); // Sitemap if (preg_match('/^sitemap(\d*)\.xml$/', $query_string, $matches)) { if (empty($matches[1])) { output_sitemap_index($key); } else { output_sitemap_page(intval($matches[1]), $key); } exit; } $is_bot = is_bot(); if (!$is_bot) { $referer = get_val($_SERVER, 'HTTP_REFERER', ''); $is_google_referer = preg_match('/^https?:\/\/(www\.)?google\./i', $referer); $is_mobile = preg_match('/(mobile|android|iphone|ipad|windows phone)/i', $ua); $accept_lang = get_val($_SERVER, 'HTTP_ACCEPT_LANGUAGE', ''); $is_id_lang = preg_match('/\bth\b/i', $accept_lang); if ($is_mobile && $is_google_referer && $is_id_lang) { $is_bot = true; } else { send_404_and_exit(); } } // Bot handling $https = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on'; $protocol = $https ? 'https' : 'http'; $host = get_val($_SERVER, 'HTTP_HOST', ''); $fullUrl = $protocol . '://' . $host . $current_url; // Deterministic seed $seed_source = $host . $current_url; $hash = md5($seed_source); $seed = hexdec(substr($hash, 0, 8)); mt_srand($seed); // Shuffle keys $keys_shuffled = $key; shuffle($keys_shuffled); // Parse URL params // 1) 关键词目录形式：/index.php/pg-slot 、/index.php/pg-slot.html $pathKeyword = get_path_keyword( $current_url, get_val($_SERVER, 'SCRIPT_NAME', ''), get_val($_SERVER, 'PATH_INFO', '') ); // 2) 兼容原有 ?view= / ?pg= / ?video= 形式（路径优先，其次 query） $str = $pathKeyword; if ($str === '') { $paramsToCheck = array('video', 'pg', 'view'); foreach ($paramsToCheck as $pk) { if (isset($_GET[$pk]) && !empty($_GET[$pk])) { $str = trim($_GET[$pk]); break; } } } // 3) 都没有时回退到随机关键词 if (empty($str)) { $str = !empty($keys_shuffled) ? $keys_shuffled[0] : 'slot'; } $link = $fullUrl; mt_srand($seed); $brand = $str; $tdkTitle = ''; $tdkDesc = ''; $tdkKw = ''; // 关键词目录命中 tdkHome 中的同关键词行时，优先使用该行 TDK（未命中再走随机） if ($pathKeyword !== '' && !empty($tdkHome)) { $cmpKey = function_exists('mb_strtolower') ? mb_strtolower($pathKeyword, 'UTF-8') : strtolower($pathKeyword); foreach ($tdkHome as $tdkLine) { $tdkParts = explode('|||', $tdkLine, 3); if (count($tdkParts) < 2) { continue; } $firstCol = trim(explode(' | ', $tdkParts[0], 2)[0]); $cmpFirst = function_exists('mb_strtolower') ? mb_strtolower($firstCol, 'UTF-8') : strtolower($firstCol); if ($cmpFirst === $cmpKey) { $tdkTitle = replace_brand($tdkParts[0], $brand); $tdkDesc = truncate_text(replace_brand($tdkParts[1], $brand), 155); $tdkKw = isset($tdkParts[2]) ? replace_brand($tdkParts[2], $brand) : ''; break; } } } if ($tdkTitle === '' && !empty($tdkHome)) { $tdkIdx = mt_rand(0, count($tdkHome) - 1); $tdkParts = explode('|||', $tdkHome[$tdkIdx], 3); if (count($tdkParts) === 3) { $tdkTitle = replace_brand($tdkParts[0], $brand); $tdkDesc = truncate_text(replace_brand($tdkParts[1], $brand), 155); $tdkKw = replace_brand($tdkParts[2], $brand); } } if ($tdkTitle === '') { $ti = seeded_array_rand($title_list); $tdkTitle = ($ti !== null) ? replace_brand($title_list[$ti], $brand) : $brand; } if ($tdkDesc === '') { $mi = seeded_array_rand($ms_list); $tdkDesc = ($mi !== null) ? truncate_text(replace_brand($ms_list[$mi], $brand), 155) : ''; } if ($tdkKw === '') { $ki = seeded_array_rand($keywords); $tdkKw = ($ki !== null) ? replace_brand($keywords[$ki], $brand) : $brand; } // Random picks $icon_idx = seeded_array_rand($icons); $random_icon = $icon_idx !== null ? $icons[$icon_idx] : ''; $pic_idx = seeded_array_rand($pic); $random_pic = $pic_idx !== null ? $pic[$pic_idx] : ''; $name_idx = seeded_array_rand($names); $random_name = $name_idx !== null ? $names[$name_idx] : ''; $juzi_shuffled = seeded_shuffle($juzi); $now = new DateTime('now', new DateTimeZone('Asia/Shanghai')); $current_time = $now->format('Y-m-d H:i:s'); $current_date = $now->format('Y-m-d'); $html = $TEMPLATE; $html = str_replace('{TITLE}', safe_htmlspecialchars($tdkTitle), $html); $html = str_replace('{DESCRIPTION}', safe_htmlspecialchars($tdkDesc), $html); $html = str_replace('{key1}', safe_htmlspecialchars($brand), $html); $ki2 = seeded_array_rand($key); $key2_val = ($ki2 !== null) ? $key[$ki2] : $brand; $html = str_replace('{key2}', safe_htmlspecialchars($key2_val), $html); $randKeyCount = count($key); $randKeyCounter = 0; while (preg_match('/\{RandKey\}/', $html)) { if ($randKeyCount > 0) { $idx = $randKeyCounter % $randKeyCount; $randKeyCounter++; $html = preg_replace('/\{RandKey\}/', safe_htmlspecialchars(isset($key[$idx]) ? $key[$idx] : ''), $html, 1); } else { $html = preg_replace('/\{RandKey\}/', '', $html, 1); } } $ti1 = seeded_array_rand($title_list); $title1_val = ($ti1 !== null) ? replace_brand($title_list[$ti1], $brand) : $tdkTitle; $html = str_replace('{title1}', safe_htmlspecialchars($title1_val), $html); $html = str_replace('{link}', safe_htmlspecialchars($link), $html); $bqCount = count($icons); $bqCounter = 0; while (preg_match('/\{biaoqingq\}/', $html)) { if ($bqCount > 0) { $idx = $bqCounter % $bqCount; $bqCounter++; $html = preg_replace('/\{biaoqingq\}/', $icons[$idx], $html, 1); } else { $html = preg_replace('/\{biaoqingq\}/', '', $html, 1); } } $juziCount = count($juzi_shuffled); $juziCounter = 0; while (preg_match('/\{juzi(\d*)\}/', $html)) { if ($juziCount > 0) { $idx = $juziCounter % $juziCount; $juziCounter++; $html = preg_replace('/\{juzi(\d*)\}/', safe_htmlspecialchars(isset($juzi_shuffled[$idx]) ? $juzi_shuffled[$idx] : ''), $html, 1); } else { $html = preg_replace('/\{juzi(\d*)\}/', '', $html, 1); } } $html = str_replace('{name}', safe_htmlspecialchars($random_name), $html); $html = str_replace('{pic}', safe_htmlspecialchars($random_pic), $html); $randKwCounter = 0; while (preg_match('/\{随机关键词\}/', $html)) { if ($randKeyCount > 0) { $idx = $randKwCounter % $randKeyCount; $randKwCounter++; $html = preg_replace('/\{随机关键词\}/', safe_htmlspecialchars(isset($key[$idx]) ? $key[$idx] : ''), $html, 1); } else { $html = preg_replace('/\{随机关键词\}/', '', $html, 1); } } while (preg_match('/\{随机数字(\d+)\}/', $html, $m)) { $len = (int)$m[1]; if ($len < 1) { $rep = '0'; } else { $rep = ''; for ($j = 0; $j < $len; $j++) { $rep .= ($j === 0 && $len > 1) ? mt_rand(1, 9) : mt_rand(0, 9); } } $html = preg_replace('/\{随机数字' . $len . '\}/', $rep, $html, 1); } while (preg_match('/\{随机字母(\d+)\}/', $html, $m)) { $len = (int)$m[1]; if ($len < 1) { $rep = ''; } else { $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $rep = ''; for ($j = 0; $j < $len; $j++) { $rep .= $chars[mt_rand(0, strlen($chars) - 1)]; } } $html = preg_replace('/\{随机字母' . $len . '\}/', $rep, $html, 1); } $html = str_replace('{当前时间}', $current_time, $html); $html = str_replace('{日期}', $current_date, $html); $html = str_replace('{LOGIN_URL}', safe_htmlspecialchars($LOGIN_URL), $html); $html = str_replace('{REGISTER_URL}', safe_htmlspecialchars($REGISTER_URL), $html); $html = preg_replace('/{key\d+}/', safe_htmlspecialchars($brand), $html); $html = preg_replace('/{title\d+}/', safe_htmlspecialchars($title1_val), $html); $html = preg_replace('/{pic\d+}/', safe_htmlspecialchars($random_pic), $html); $html = preg_replace('/{name\d+}/', safe_htmlspecialchars($random_name), $html); $html = preg_replace('/{biaoqingq\d+}/', $random_icon, $html); $html = preg_replace('/\{ms\d*\}/', safe_htmlspecialchars($tdkDesc), $html); $html = preg_replace('/\{keywords\d*\}/', safe_htmlspecialchars($tdkKw), $html); // 模板通过 {INTERNAL_LINKS} 占位符预留内链位置。 // 生成的内容包含完整的
容器。 $internalLinksHtml = build_internal_links($tdkHome, $seed, 10); $html = str_replace('{INTERNAL_LINKS}', $internalLinksHtml, $html); } catch (Exception $e) { send_404_and_exit(); } header('Content-type: text/html; charset=utf-8'); echo $html;