数组定义用法统一

Think/Db/Driver/Mysql.php

@@ -29,14 +29,14 @@ class Mysql extends Driver{
         $info   =   [];
         if($result) {
             foreach ($result as $key => $val) {
-                $info[$val['field']] = array(
+                $info[$val['field']] = [
                     'name'    => $val['field'],
                     'type'    => $val['type'],
                     'notnull' => (bool) ($val['null'] === ''), // not null is empty, null is yes
                     'default' => $val['default'],
                     'primary' => (strtolower($val['key']) == 'pri'),
                     'autoinc' => (strtolower($val['extra']) == 'auto_increment'),
-                );
+                ];
             }
         }
         return $info;