$_SESSION vs. $variable

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  • Ken
    #1

    $_SESSION vs. $variable

    What am I doing wrong?

    I set the variable co_name on the first page with an <input.... > and
    session_start() at the top of both pages.

    Clicking on a link that takes me to the second page:

    Script on the second page.

    echo $_SESSION['co_name']; Does not display
    value of co_name
    echo "Variable name co_name = ".$co_name; Displays value of co_name

    One book suggested using echo {$_SESSION['co_name']}; Does not run.

    Server is Apache2 Triad

    Any suggestions. I would like to use $_SESSION incase I move to another
    server without ??register_glob als?? ON

    Thanks for the help.


    Tags: None
    • Andreas Paasch
      #2
      Re: $_SESSION vs. $variable

      Ken wrote:
      [color=blue]
      > What am I doing wrong?
      >
      > I set the variable co_name on the first page with an <input.... > and
      > session_start() at the top of both pages.
      >
      > Clicking on a link that takes me to the second page:
      >
      > Script on the second page.
      >
      > echo $_SESSION['co_name']; Does not display
      > value of co_name
      > echo "Variable name co_name = ".$co_name; Displays value of co_name
      >
      > One book suggested using echo {$_SESSION['co_name']}; Does not run.
      >
      > Server is Apache2 Triad
      >
      > Any suggestions. I would like to use $_SESSION incase I move to another
      > server without ??register_glob als?? ON
      >
      > Thanks for the help.[/color]

      You have considered the manual at php.net ?
      Especially about session_registe r("co_name") prior to $_SESSION["co_name"] =
      "something" on the first page ?

      Or rather, in your case a minor rewrite according to the input statement ?

      /Andreas
      --
      Peace and long life ...
      Registeret Linux user #292411

        Comment

        • Pedro Graca
          #3
          Re: $_SESSION vs. $variable

          Ken wrote:[color=blue]
          > What am I doing wrong?
          >
          > I set the variable co_name on the first page with an <input.... > and
          > session_start() at the top of both pages.[/color]

          How are you putting co_name into the session variable on the first page?
          [color=blue]
          > Clicking on a link that takes me to the second page:
          >
          > Script on the second page.
          >
          > echo $_SESSION['co_name'];[/color]

          The PHP manual for session_registe r()
          ( @ http://www.php.net/session_register )
          has a word of caution against using session_registe r() and $_SESSION
          together.
          --
          --= my mail box only accepts =--
          --= Content-Type: text/plain =--
          --= Size below 10001 bytes =--

            Comment

            • Andreas Paasch
              #4
              Re: $_SESSION vs. $variable

              Ken wrote:
              [color=blue]
              > What am I doing wrong?
              >
              > I set the variable co_name on the first page with an <input.... > and
              > session_start() at the top of both pages.
              >
              > Clicking on a link that takes me to the second page:
              >
              > Script on the second page.
              >
              > echo $_SESSION['co_name']; Does not display
              > value of co_name
              > echo "Variable name co_name = ".$co_name; Displays value of co_name
              >
              > One book suggested using echo {$_SESSION['co_name']}; Does not run.
              >
              > Server is Apache2 Triad
              >
              > Any suggestions. I would like to use $_SESSION incase I move to another
              > server without ??register_glob als?? ON
              >
              > Thanks for the help.[/color]

              Now thinking of it a bit further - please do disregard my other post.
              What you want is not sessions, but a way to read form input on another page.

              If the form is of method=POST, on the page that is called then you can read
              each variable by $_POST["fieldname"], if it's a method=GET of course using
              $_GET["fieldname"] or alternatively, $_REQUEST["fieldname"].

              Sessions, is a totally different subject.
              And you were referring to register_global s, so this is what you wanted and
              this doesn't need a session_start() at each page in order to work.

              /Andreas
              --
              Peace and long life ...
              Registeret Linux user #292411

                Comment

                • Ken
                  #5
                  Re: $_SESSION vs. $variable

                  I want to carry variables from the input page through to 2 or 3 other pages;
                  then save the variables in a table or array for future downloading.

                  There can be several user transferring data at the same time.

                  What is the best way to do that?

                  I thought sessions would keep the data from being intermingled between
                  users.

                  What is the operational difference between

                  $_SESSION['variable]

                  $variable

                  $_POST['variable']

                  Thanks for the help.

                  Ken

                  "Ken" <kkrolski@wi.rr .com> wrote in message
                  news:IFN3c.6118 6$LD5.49426@twi ster.rdc-kc.rr.com...[color=blue]
                  > What am I doing wrong?
                  >
                  > I set the variable co_name on the first page with an <input.... > and
                  > session_start() at the top of both pages.
                  >
                  > Clicking on a link that takes me to the second page:
                  >
                  > Script on the second page.
                  >
                  > echo $_SESSION['co_name']; Does not display
                  > value of co_name
                  > echo "Variable name co_name = ".$co_name; Displays value of co_name
                  >
                  > One book suggested using echo {$_SESSION['co_name']}; Does not run.
                  >
                  > Server is Apache2 Triad
                  >
                  > Any suggestions. I would like to use $_SESSION incase I move to another
                  > server without ??register_glob als?? ON
                  >
                  > Thanks for the help.
                  >
                  >[/color]


                    Comment

                    • Pedro Graca
                      #6
                      Re: $_SESSION vs. $variable

                      Ken wrote:[color=blue]
                      > What is the operational difference between
                      >
                      > $_SESSION['variable]
                      >
                      > $variable
                      >
                      > $_POST['variable'][/color]

                      | creation | lifetime | scope
                      ------------+------------------+----------------+---------
                      $variable | first use | end of script | local
                      $_POST[] | init (by client) | end of script | global
                      $_SESSION[] | init (by server) | end of session | global

                      I think this pretty much sums it up :)
                      --
                      --= my mail box only accepts =--
                      --= Content-Type: text/plain =--
                      --= Size below 10001 bytes =--

                        Comment

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