PHP函数调用外部变量很怪的一个有关问题

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Release: 2016-06-13 13:38:03
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PHP函数调用外部变量很怪的一个问题

PHP code
<!--

Code highlighting produced by Actipro CodeHighlighter (freeware)
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-->
$classfield="fadsdasf";
function echo_blocka(){
  global $classfield;
  echo $classfield;
}
echo_blocka();

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这个在一个单独页面可以正常输出
但是在另一个包含页面什么也不输出,很郁闷。请高手分析一下原因。

------解决方案--------------------
另外一个页面的包含怎么个包含法?代码呢
------解决方案--------------------
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我用帝国CMS做的,这个CMS可以直接在页面写PHP代码,
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