'; ?> Field ?? '') : ''); if (strtolower($colName) === 'updated_at') $hasUpdatedAt = true; if (strtolower($colName) === 'created_at') $hasCreatedAt = true; } $timeField = $hasUpdatedAt ? 'updated_at' : ($hasCreatedAt ? 'created_at' : ''); if ($timeField) { $sites = dbSelectAll("SELECT subdomain, {$timeField} as lastmod FROM landing_sites WHERE status = 1 ORDER BY id"); } else { $sites = dbSelectAll("SELECT subdomain FROM landing_sites WHERE status = 1 ORDER BY id"); } $today = date('Y-m-d'); foreach ($sites as $site): // subdomain 可能是 "beijing" 或 "beijing.aifukeji.top" $sub = trim($site['subdomain']); if (strpos($sub, '.') === false) { $sub = $sub . '.' . $mainDomain; } $lastmod = $today; if (!empty($timeField) && !empty($site['lastmod'])) { $lm = strtotime($site['lastmod']); if ($lm !== false) { $lastmod = date('Y-m-d', $lm); } } ?> http:/// weekly 0.8