输出的是空数组

源自：1-2 客户端页面配置说明

我用的phpstorm，一样的代码，是空数组，往后一节报错的是

PHP Notice: Undefined index: file in D:\phpStudy\WWW\123\document\doAction.php on line 12

PHP Notice: Undefined index: file in D:\phpStudy\WWW\123\document\doAction.php on line 15

PHP Notice: Undefined index: file in D:\phpStudy\WWW\123\document\doAction.php on line 16

PHP Notice: Undefined index: file in D:\phpStudy\WWW\123\document\doAction.php on line 17

PHP Notice: Undefined index: file in D:\phpStudy\WWW\123\document\doAction.php on line 18

提问者：丶至尊宝 2016-04-11 15:45