Beginner Needs Help With HTTP Parameters

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  • Buck Turgidson
    #1

    Beginner Needs Help With HTTP Parameters

    I am trying an example from an O'Reilly book that I just can't get to work.
    Can someone tell me where I am going wrong. According to the book, I should
    see the values of the HTTP request echoed by the PHP. But obviously they're
    not there. All I see is "regionName is wineType is"

    Any help would be appreciated.

    // index.html
    <HTML>
    <HEAD>
    <TITLE>Explor e Wines</TITLE>
    </HEAD>

    <BODY BGCOLOR="#fffff f">

    Explore all our <A
    HREF="example.5-4.php?regionNam e=All&amp;wineT ype=All">wines</A>

    <BR>
    Explore our <A HREF="example.5-4.php?regionNam e=All&amp;wineT ype=Red">red
    wines</A>

    <BR>
    Explore our <A
    HREF="example.5-4.php?regionNam e=Riverland&amp ;wineType=Red"> premium
    reds from the Riverland</A>

    <BR>
    </BODY>
    </HTML>


    // example.5-4.php
    <HTML>
    <HEAD>
    <TITLE>Paramete rs</TITLE>
    </HEAD>
    <BODY>
    <?php
    echo "regionName is $regionName\n";
    echo "wineType is $wineType\n";
    ?>
    </BODY>
    </HTML>


    Tags: None
    • musicinmyhead
      #2
      Re: Beginner Needs Help With HTTP Parameters

      In order to get those variables from the URL, change the $regionName
      variable to $_GET['regionName'] and the $wineType to $_GET['wineType'].

      PHP expects those variables to be set somewhere else in the PHP file,
      so it doesn't know to look in the URL for the variable.

        Comment

        • Rick van Krevelen
          #3
          Re: Beginner Needs Help With HTTP Parameters

          > I am trying an example from an O'Reilly book that I just can't get to
          work.[color=blue]
          > Can someone tell me where I am going wrong. According to the book, I[/color]
          should[color=blue]
          > see the values of the HTTP request echoed by the PHP. But obviously[/color]
          they're[color=blue]
          > not there. All I see is "regionName is wineType is"[/color]

          In the early days, PHP made these variables available to use, from version 4
          and up however (I believe) they are typically stored in the global arrays
          $_GET or $_POST. To minimize the changes required for the O'Reilly examples
          to work, just type the following command at the top of your .php file:

          <? import_request_ variables("gP", "") ?>

          Also check out:

          PHP: 404 Not Found
          http://php.net/manual/en/function.import-request-variables.php
          PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.



            Comment

            • Buck Turgidson
              #4
              Re: Beginner Needs Help With HTTP Parameters

              > In order to get those variables from the URL, change the $regionName[color=blue]
              > variable to $_GET['regionName'] and the $wineType to $_GET['wineType'].
              >
              > PHP expects those variables to be set somewhere else in the PHP file,
              > so it doesn't know to look in the URL for the variable.[/color]


              Thanks to both! I guess my book is a bit dated, although it is March 2002.


                Comment

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