Sophie: php-manual-en-4.3.0-2mdk noarch

php-manual-en-4.3.0-2mdk.noarch.rpm

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>What References Are Not</H1
><P
>&#13;    As said before, references aren't pointers. That means, the
    following construct won't do what you expect:
    <DIV
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><PRE
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>function foo (&#38;$var)
{
    $var =&#38; $GLOBALS["baz"];
}
foo($bar);</PRE
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>
   </P
><P
>&#13;    What happens is that <TT
CLASS="varname"
>$var</TT
> in
    <TT
CLASS="varname"
>foo</TT
> will be bound with
    <TT
CLASS="varname"
>$bar</TT
> in caller, but then it will be
    re-bound with <TT
CLASS="varname"
>$GLOBALS["baz"]</TT
>. There's no way
    to bind <TT
CLASS="varname"
>$bar</TT
> in the calling scope to something else
    using the reference mechanism, since <TT
CLASS="varname"
>$bar</TT
> is not
    available in the function <TT
CLASS="varname"
>foo</TT
> (it is represented by
    <TT
CLASS="varname"
>$var</TT
>, but <TT
CLASS="varname"
>$var</TT
> has only
    variable contents and not name-to-value binding in the calling
    symbol table).
   </P
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