更新

app/common.php

@@ -7,6 +7,7 @@
 // | Author: molong <molong@tensent.cn> <http://www.tensent.cn>
 // +----------------------------------------------------------------------
 use think\facade\Cache;
+use sent\tree\Tree;
 
 function getDepartmentChild($pid = 0){
 	$department = Cache::get('department');
@@ -28,8 +29,8 @@ function getChilds($data, $id = 0, $pk = 'id', $pid = 'parent_id') {
 	$array = [];
 	foreach ($data as $k => $v) {
 		if ($v[$pid] == $id) {
-			$array[] = (int) $v[$pk];
-			array_merge($array, getChilds($data, $v[$pk]));
+			$array[] = $v[$pk];
+			$array = array_merge($array, getChilds($data, $v[$pk]));
 		}
 	}
 	return $array;