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Thread: Simple Header Script, Need Help

  1. 12-11-2008 05:18 PM #1
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    dquigley
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    Simple Header Script, Need Help

    So I wrote this pretty simple script that is supposed to set the headers and such depending on your platform, however when I load it it does not show any text at all, however the page IS loading, just nothing shows up. So if you could help me find the error that would be great. Thank you in advance.

    <?

    $agent = getenv("HTTP_USER_AGENT");

    if (preg_match("/Win/i", "$agent")) {
    $style = "win";
    }
    else if (preg_match("/Linux/i", "$agent")) {
    $style = "linux";
    }

    $win_style = "<style type=\"text/css\">p, ul, ol, li
    {font-family:Arial;font-size:10pt;font-weight:normal;}
    h1 {font-family:Arial;font-size:16pt;font-weight:bold;}
    h2 {font-family:Arial;font-size:14pt;font-weight:bold;}
    strong {font-family:Arial;font-size:10pt;font-weight:bold;}
    em {font-family:Arial;font-size:10pt;font-weight:italic;}
    </sytle>";

    $linux_style = "<style type=\"text/css\">
    p, ul, ol, li {font-family:Times;font-size:12pt;font-weight:normal;}
    h1 {font-family:Times;font-size:18pt;font-weight:bold;}
    h2 {font-family:Times;font-size:16pt;font-weight:bold;}
    strong {font-family:Times;font-size:12pt;font-weight:bold;}
    em {font-family:Times;font-size:12pt;font-weight:italic;}
    </sytle>";

    ?>

    <HTML>
    <HEAD>
    <TITLE>Platform Matching</TITLE>

    <?
    if ($style == "win") {
    echo "$win_style";
    } else if ($style == "linux") {
    echo "$linux_style";
    }
    ?>

    </HEAD>
    <BODY>

    <h1 align=center>This is a level 1 heading</h1>
    <h2 align=center>Look! a level 2 heading</h2>
    <P align=center>This is a simple paragraph with some
    <strong>bold</strong> and <em>emphasized</em> text.</P>

    </BODY>
    </HTML>
    Last edited by dquigley; 12-11-2008 at 05:18 PM.
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  2. 12-11-2008 06:18 PM #2
    Twinkie
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    Re: Simple Header Script, Need Help

    The variable $linux_style has to be global, or it will not pass between scripts. Try this:
    Code:
    global $linux_style;
global $win_style;
global $style;

or just:
global $linux_style, $win_style, $style;
    It was quite a headache when I went through the same problem
    Last edited by Twinkie; 12-11-2008 at 09:16 PM.
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  3. 12-11-2008 06:25 PM #3
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    Re: Simple Header Script, Need Help

    are you sure thats the problem? I looked at it and that doesnt seem correct, the book says to do it this way, and its only one script? I think the problem is actually a misplace ; " () or {} I did it all by the book so im sure I just made a typo.
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  4. 12-11-2008 06:39 PM #4
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    Re: Simple Header Script, Need Help

    I'm sure, the fact that the variable is printed in a separate script means the variable has to be global.
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  5. 12-11-2008 06:55 PM #5
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    Re: Simple Header Script, Need Help

    what do you mean in a seperate script? this is the same file.
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  6. 12-11-2008 08:53 PM #6
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    Re: Simple Header Script, Need Help

    hey, try this:
    PHP Code:
    <?php // always start php scripts w/ <?php because some configs might not execute <? as php code

    $agent = getenv("HTTP_USER_AGENT");

    if (    stristr($agent, 'Win'))
    {

          $style = "<style type=\"text/css\">p, ul, ol, li
    {font-family:Arial;font-size:10pt;font-weight:normal;}
    h1 {font-family:Arial;font-size:16pt;font-weight:bold;}
    h2 {font-family:Arial;font-size:14pt;font-weight:bold;}
    strong {font-family:Arial;font-size:10pt;font-weight:bold;}
    em {font-family:Arial;font-size:10pt;font-weight:italic;}
    </sytle>"    ;

    }
    else     // If their user_agent doesn't match, then show the linux one (since unix, mac and others could possibly be more similar to linux than windows.
    {

          $style = "<style type=\"text/css\">
    p, ul, ol, li {font-family:Times;font-size:12pt;font-weight:normal;}
    h1 {font-family:Times;font-size:18pt;font-weight:bold;}
    h2 {font-family:Times;font-size:16pt;font-weight:bold;}
    strong {font-family:Times;font-size:12pt;font-weight:bold;}
    em {font-family:Times;font-size:12pt;font-weight:italic;}
    </sytle>"    ;

    }

    ?>

    <HTML>
    <HEAD>
    <TITLE>Platform Matching</TITLE>

    <?php

    echo $style;

    ?>

    </HEAD>
    <BODY>

    <h1 style='text-align:center'>This is a level 1 heading</h1>
    <h2 style='text-align:center'>Look! a level 2 heading</h2>
    <p style='text-align:center'>This is a simple paragraph with some
    <strong>bold</strong> and <em>emphasized</em> text.</p>

    </BODY>
    </HTML>
    Last edited by xPlozion; 12-11-2008 at 08:54 PM.
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  7. 12-11-2008 09:00 PM #7
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    Re: Simple Header Script, Need Help

    I really need to fix the script I posted, not change it. Because I am doing lessons out of a book I would like to keep it the same that way I can go back later to reference what I did and such. Thank you for helping me and editing it, but I need to find the error I made, however I will note the <?php comment thats interesting.
    Thanks for help
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  8. 12-11-2008 09:11 PM #8
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    Re: Simple Header Script, Need Help

    Separate as in a different set of <?php and ?> tags. I had the same problem with a script which loads a visit counter before the HTML and prints it to the page some ways down in the HTML, and this is the same sort of thing. Trust me, try it and tell me if it works =)
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  9. 12-11-2008 09:18 PM #9
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    Re: Simple Header Script, Need Help

    dont use preg_match try with xPlozion code, its better and your code there are some errors, ok you try to learn with a php book but that book its very old I recommend the official php manual
    PHP & MySQL Web Developer
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  10. 12-11-2008 09:19 PM #10
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    Re: Simple Header Script, Need Help

    well, where exactly do I put that then?
    Edit:
    This book isnt old its php6 which is the newest php and it was wrote like this year.
    Last edited by dquigley; 12-11-2008 at 09:19 PM. Reason: Automerged Doublepost
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