options; $popularEnabled = isset($options->searchPopularEnable) && $options->searchPopularEnable === '1'; $popularTitle = $options->searchPopularTitle ?? '热门搜索'; $placeholder = $options->searchPlaceholder ?? '请输入关键字...'; $popularKeywords = []; if ($popularEnabled && $options->searchPopularKeywords) { $popularKeywords = array_slice(array_filter(array_map('trim', explode("\n", trim($options->searchPopularKeywords)))), 0, 20); } ?>