where('id', 1)->find() ?: [];
$imageExts = isset($imageConfig['image_upload_exts']) && $imageConfig['image_upload_exts'] !== '' ? $imageConfig['image_upload_exts'] : 'jpg,jpeg,png,gif,bmp,webp,ico';
$imageExts = implode('|', array_filter(array_map(function($ext){ return ltrim(strtolower(trim($ext)), '.'); }, preg_split('/[,，\s|]+/', $imageExts))));
$imageMaxSize = max(1, (int)($imageConfig['image_upload_max_size'] ?? 20)) * 1024;
?>
图片管理