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<?php /** * $data 原始数据（二维数组） * $parent_key 原始数据父级字段 * $child_key 生成子集的字段 */ function treeArray($data,$parent_key,$child_key){ $tree = []; foreach ($data as $key => $val) { if ($val[$parent_key] == 0) { $tree[] = &$data[$key]; } else { $data[$val[$parent_key]][$child_key][] = &$data[$key]; } } return $tree; } $data = [ ['id'=>1,'pid'=>0,'name'=>1], ['id'=>2,'pid'=>0,'name'=>2], ['id'=>3,'pid'=>1,'name'=>3], ['id'=>4,'pid'=>2,'name'=>4], ['id'=>5,'pid'=>3,'name'=>5], ['id'=>6,'pid'=>4,'name'=>6], ['id'=>7,'pid'=>5,'name'=>7], ['id'=>8,'pid'=>6,'name'=>8], ]; $tree = treeArray(array_column($data,null,'id'), 'pid','child'); print_r($tree); ?> |
