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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>old_function</TT
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>&#13;   <TT
CLASS="literal"
>old_function</TT
> 语句允许用和
   PHP/FI2 一样的语法定义函数(即用“old_function”替代“function”)。
  </P
><P
>&#13;   不赞成使用此特性,应该只用于 PHP/FI2-&#62;PHP 3 的转换程序中。
  </P
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>&#13;    用 <TT
CLASS="literal"
>old_function</TT
> 定义的函数不能被 PHP
    内部代码调用。除了其它限制以外,还意味着不能用于类似
    <A
HREF="function.usort.html"
><B
CLASS="function"
>usort()</B
></A
>,<A
HREF="function.array-walk.html"
><B
CLASS="function"
>array_walk()</B
></A
> 和
    <A
HREF="function.register-shutdown-function.html"
><B
CLASS="function"
>register_shutdown_function()</B
></A
>
    等函数。可以写封装协议函数(按照正常的 PHP 3
    格式)绕过此限制来调用 <TT
CLASS="literal"
>old_function</TT
>。
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