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

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>session_register</H1
><DIV
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><A
NAME="AEN84574"
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><P
>    (PHP 4 )</P
>session_register&nbsp;--&nbsp;
     Register one or more global variables with the current session
    </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN84577"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>session_register</B
> ( mixed name [, mixed ...])<BR
></BR
><P
>&#13;     <B
CLASS="function"
>session_register()</B
> accepts a variable number of
     arguments, any of which can be either a string holding the name of a
     variable or an array consisting of variable names or other arrays. For
     each name, <B
CLASS="function"
>session_register()</B
> registers the global
     variable with that name in the current session.
    </P
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>Caution</B
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><P
>&#13;      If you want your script to work regardless of register_globals, you need
      to use the $_SESSION array. All $_SESSION entries are automatically
      registered. If your script uses session_register(), it will not work in
      environments where register_globals is disabled.
     </P
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>Caution</B
></TD
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><P
>&#13;      This registers a <SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>global</I
></SPAN
> variable. If you want to
      register a session variable from within a function, you need to make sure to
      make it global using the 
      <A
HREF="language.variables.scope.html"
><B
CLASS="command"
>global</B
></A
> 
      keyword or the <TT
CLASS="varname"
>$GLOBALS[]</TT
> array, or use the special session 
      arrays as noted below.
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>Caution</B
></TD
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><P
>&#13;      If you are using
      <TT
CLASS="varname"
>$_SESSION</TT
> (or <TT
CLASS="varname"
>$HTTP_SESSION_VARS</TT
>),
      do not use <B
CLASS="function"
>session_register()</B
>,
      <A
HREF="function.session-is-registered.html"
><B
CLASS="function"
>session_is_registered()</B
></A
> and
      <A
HREF="function.session-unregister.html"
><B
CLASS="function"
>session_unregister()</B
></A
>.
     </P
></TD
></TR
></TABLE
></DIV
><P
>&#13;     This function returns <TT
CLASS="constant"
><B
>TRUE</B
></TT
> when all of the variables are successfully
     registered with the session.
    </P
><P
>&#13;     If <A
HREF="function.session-start.html"
><B
CLASS="function"
>session_start()</B
></A
> was not called before this function
     is called, an implicit call to <A
HREF="function.session-start.html"
><B
CLASS="function"
>session_start()</B
></A
> with no
     parameters will be made.  <TT
CLASS="varname"
>$_SESSION</TT
> does not mimick
     this behavior and requires <A
HREF="function.session-start.html"
><B
CLASS="function"
>session_start()</B
></A
> before use.
    </P
><P
>&#13;     You can also create a session variable by simply setting the
     appropriate member of the <TT
CLASS="varname"
>$_SESSION</TT
>
     or <TT
CLASS="varname"
>$HTTP_SESSION_VARS</TT
> (PHP &#60; 4.1.0) array.
     <DIV
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></A
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CLASS="php"
>$barney = "A big purple dinosaur.";
session_register("barney");

$_SESSION["zim"] = "An invader from another planet.";

# The old way was to use $HTTP_SESSION_VARS
$HTTP_SESSION_VARS["spongebob"] = "He's got square pants.";</PRE
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>
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      It is currently impossible to register resource variables in a
      session.  For example, you cannot create a connection to a
      database and store the connection id as a session variable and
      expect the connection to still be valid the next time the
      session is restored.  PHP functions that return a resource are
      identified by having a return type of
      <TT
CLASS="literal"
>resource</TT
> in their function definition.  A
      list of functions that return resources are available in the
      <A
HREF="resource.html"
>resource types</A
> appendix.
     </P
><P
>&#13;      If <TT
CLASS="varname"
>$_SESSION</TT
> (or
      <TT
CLASS="varname"
>$HTTP_SESSION_VARS</TT
> for PHP 4.0.6 or less) is
      used, assign values to
      <TT
CLASS="varname"
>$_SESSION</TT
>. For example: $_SESSION['var'] = 'ABC';
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.session-is-registered.html"
><B
CLASS="function"
>session_is_registered()</B
></A
> and
     <A
HREF="function.session-unregister.html"
><B
CLASS="function"
>session_unregister()</B
></A
>.
    </P
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