register_globals and $_SERVER['QUERY_STRING']

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  • deko
    #1

    register_globals and $_SERVER['QUERY_STRING']

    I use http variables with php - not sure if I've got the nomenclature
    correct, so here's an example of what I'm talking about:

    A navbar sends "somepage.php?s omevariable" when the link is clicked. The
    link looks like this:
    <a href='somepage. php?somevariabl e'>Some Page</a>

    Then I do stuff with "somevariab le" in PHP code.

    I understand that I need "register_globa ls = on" in my php.ini - but is
    there any other config, Apache or otherwise, that needs to be set up?

    I am not getting any value in $_SERVER['QUERY_STRING'];

    Why no value? Other troubleshooting ideas?

    Here's my server config:

    L = rh9 2.4.20-8
    A = apache 2.0.40-21
    M = mysql-3.23.54
    P = php4.2.2

    Thanks in advance.


    Tags: None
    • Michael Fesser
      #2
      Re: register_global s and $_SERVER['QUERY_STRING']

      .oO(deko)
      [color=blue]
      >A navbar sends "somepage.php?s omevariable" when the link is clicked. The
      >link looks like this:
      ><a href='somepage. php?somevariabl e'>Some Page</a>
      >
      >Then I do stuff with "somevariab le" in PHP code.
      >
      >I understand that I need "register_globa ls = on" in my php.ini[/color]

      Why? It's off for good reasons. You may only need it for older or third-
      party scripts, not for newly written ones.
      [color=blue]
      > - but is
      >there any other config, Apache or otherwise, that needs to be set up?
      >
      >I am not getting any value in $_SERVER['QUERY_STRING'];
      >
      >Why no value? Other troubleshooting ideas?[/color]

      No idea at the moment, but if you need the posted variable - it's stored
      in $_GET['somevariable'].

      Micha

        Comment

        • deko
          #3
          Re: register_global s and $_SERVER['QUERY_STRING']

          > No idea at the moment, but if you need the posted variable - it's stored[color=blue]
          > in $_GET['somevariable'].[/color]

          Well, I'm not sure I understand. I don't know the value of 'somevariable' -
          how do I retreive it"

          Are you saying there is another way to get the value of a variable?
          Currently I am using:

          $nav = trim(strip_tags ($_SERVER['QUERY_STRING']));

          to retreive the value of variables passed thusly:

          <a href='services. php?services'>P rofessional Services</a>

          in this case, $nav = services

          If there is a better way to retreive the value of the variable, I would like
          to know. As for your suggestion with $_GET - can you give me an example?


            Comment

            • Michael Fesser
              #4
              Re: register_global s and $_SERVER['QUERY_STRING']

              .oO(deko)
              [color=blue][color=green]
              >> No idea at the moment, but if you need the posted variable - it's stored
              >> in $_GET['somevariable'].[/color]
              >
              >Well, I'm not sure I understand. I don't know the value of 'somevariable' -[/color]

              Ah, OK.
              [color=blue]
              >Are you saying there is another way to get the value of a variable?
              >Currently I am using:
              >
              >$nav = trim(strip_tags ($_SERVER['QUERY_STRING']));
              >
              >to retreive the value of variables passed thusly:
              >
              ><a href='services. php?services'>P rofessional Services</a>
              >
              >in this case, $nav = services[/color]

              Is it possible to change the link to something like

              <a href='services. php?name=value' >?

              Would make it much easier if you would know the name of the passed
              parameter.
              [color=blue]
              >If there is a better way to retreive the value of the variable, I would like
              >to know. As for your suggestion with $_GET - can you give me an example?[/color]

              URL-parameters are stored in the array $_GET, in the example above the
              array would contain an empty element named 'somevariable':

              Array
              (
              [somevariable] =>
              )

              You can use the key() function to get its name (assuming that there's
              only one parameter passed to the page):

              $nav = trim(strip_tags (key($_GET)));

              See <http://www.php.net/key>. But again: It would be easier with a name,
              especially if you want to pass more than one parameter:

              <a href='services. php?foo=this;ba r=that'>

              Then the $_GET array would be

              Array
              (
              [foo] => this
              [bar] => that
              )

              HTH
              Micha

                Comment

                • deko
                  #5
                  Re: register_global s and $_SERVER['QUERY_STRING']

                  > Is it possible to change the link to something like[color=blue]
                  >
                  > <a href='services. php?name=value' >?[/color]

                  Yes. I tried it and it works fine. The only reason I was using
                  $_SERVER['QUERY_STRING']; was because of bad advice (that I paid $40/hour
                  for)... !

                  thanks for the help.


                    Comment

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