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

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>Unsetting References</H1
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>&#13;    When you unset the reference, you just break the binding between
    variable name and variable content. This does not mean that
    variable content will be destroyed. For example:
    <DIV
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>$a = 1;
$b =&#38; $a;
unset ($a);</PRE
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>
    won't unset <TT
CLASS="varname"
>$b</TT
>, just <TT
CLASS="varname"
>$a</TT
>. 
   </P
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>&#13;    Again, it might be useful to think about this as analogous to Unix
    <B
CLASS="command"
>unlink</B
> call.
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