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php 两次include后,第一个include里的变量无效了解决方法

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2016-06-13 11:37:031430browse

php 两次include后,第一个include里的变量无效了
目录结构
+ root
  index.php     
  config.php    
  +c
     index.php

root/config.php 里的内容
$shell['jquery'] = "jquery 1.4";
?>

root/index.php 里的内容
include "config.php";
print $shell['jquery'];
?>

root/c/index.php 里的内容
include "../index.php";
?>

访问root/index.php返回
jquery 1.4

访问root/c/index.php返回
Notice: Undefined variable: shell in H:\software\dev\php\xampp\htdocs\phptest\index.php on line 3


请问,两次include 后变量为什么会失效呢?正确的做法应该是怎样做?
谢谢大家了
      

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