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>session_id</A
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>session_id -- Get and/or set the current session id</DIV
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><A
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></A
><H2
>Description</H2
><DIV
CLASS="funcsynopsis"
><P
></P
><CODE
CLASS="FUNCDEF"
>string session_id</CODE
>(string [<SPAN
CLASS="optional"
>id</SPAN
>]);<P
></P
></DIV
><P
> <B
CLASS="function"
>session_id()</B
> returns the session id for the
current session. If <TT
CLASS="parameter"
><I
>id</I
></TT
> is specified, it
will replace the current session id.
</P
><P
> directory used to save session data. If
<TT
CLASS="parameter"
><I
>path</I
></TT
> is specified, the path to which data
is saved will be changed.
</P
><P
> The constant <SPAN
CLASS="systemitem"
>SID</SPAN
> can also be used to
retrieve the current name and session id as a string suitable for
adding to URLs.
<DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
This function was added in PHP 4.0.
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