public static function getCateIds() { //获取商品分类id $where = [ ['is_disable', '=', 0], ['is_delete', '=', 0], ]; $cate = self::field('id,pid,category,pricing_unit')->where($where)->select()->toArray(); $cate = array_column($cate, null, 'id'); $cate_ids = self::getResult($cate); unset($cate_ids[0]); foreach ($cate as $v) { if ($v['pid'] != 0) { unset($cate_ids[$v['id']]); }else{ if (!empty($cate_ids[$v['id']])) { array_unshift($cate_ids[$v['id']], $v['id']); }else{ $cate_ids[$v['id']][] = $v['id']; } } } return $cate_ids; } public static function getResult($categories){ $result = []; // 遍历分类数组 foreach ($categories as $category) { $parentId = $category['pid']; $categoryId = $category['id']; if (!isset($result[$parentId])) { $result[$parentId] = array(); } $result[$parentId][] = $categoryId; } foreach ($result as $parentId => &$children) { $descendants = array(); foreach ($children as $childId) { $descendants = array_merge($descendants, self::getChildren($childId, $result)); } $children = array_unique(array_merge($children, $descendants)); } return $result; } public static function getChildren($categoryId, $categories) { $children = array(); if (isset($categories[$categoryId])) { foreach ($categories[$categoryId] as $childId) { $children[] = $childId; $children = array_merge($children, self::getChildren($childId, $categories)); } } return $children; }
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标签:cate,父级,ids,id,子级,array,children,result From: https://www.cnblogs.com/bkhdd/p/18003031