PHP Template error on production server but works on localhost?

rahish · March 26, 2008

Hi I am trying to build a php template from the following tutorial http://www.alistapart.com/articles/phpcms

All I want to do is send a variable to another page, something I have done countless times before. It works fine on my local server but I cannot get it to work on my web account. It may have something to do with the way & needs to be encoded but I have corrected that and the page validates as XHTML strict but the file still won't work.

Can anyone work out what I am doing wrong?

template.php has menu.php as a require and the content loads dynamically when you select a menu item from menu.php the variables are in the url on the menu link.

here is template.php

<?php
setcookie ("styleCookie", $style, time()+40000000);
?>

<?php

if ($style == "") {
$style="default";
}
if ($page == "") {
$page="home";
}

?>


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Language" content="en-us" />

    <title>New CMS Template - Alistapart Tutorial - Managing your content with PHP</title>
    
<?php echo "<style type=\"text/css\" 
media=\"all\">@import 
\"$style.css\";> </style>"; ?>    
    

<?php echo 
"<link rel=\"alternate style sheet\" 
type=\"text/css\" 
href=\"default.css\" title=\"Default\" />"; ?>
</head>

<body>

<?php $_GET['$style'];

	$_GET['$page'];?>

<?php echo "$style";?>
<?php echo "$page";?>
<div class="body">
<?php //@require_once ("header.php");?>

<div class="menu">
<?php @ require_once ("menu.php"); ?>
</div>

<?php @ require_once ("$page.html"); ?>

</div>



</body>
</html>

and here is menu.php

<?php
$home="Home";
$info="Information";
$contact="Contact Details";
$links="Links";

$default="default";
$blue ="blue";

?>
<ul>
<li><?php echo "<a href=\"template.php?page=home&style=$default\">$home</a>"; 
?></li>
<li><?php echo "<a href=\"template.php?page=info&style=$blue\">$info</a>"; 
?></li>
<li><?php echo "$contact";?></li>
<li><?php echo "$links";?></li>
</ul>

the css files just have a background colour defined and the home and info pages are home.html and info.html

The link to the template.php which has the error is herehttp://www.undesign.co.uk/computer_club/dynamic_web/PHP/alistapart_tutorials/managing_content_php/template.php?page=home&style=default

Cep · March 26, 2008

What is the error your getting?

rahish · March 26, 2008

Thanks,

I am not getting an error at all, its just that when you try clicking on info in the list menu, it should send the variables to be picked up by template.php to load a different html file and change the style sheet. As I say this seems to work fine on localhost under xampp but on my web server on the link below it doesn't work. The variable in on the info link should send

?page=info&style=blue

to template.php

I echoed variables $style and $page to template.php and it still shows default and home.

The page has a cookie applied also, could it be that it is not updating the information

If you click on the link

http://www.undesign.co.uk/computer_club/dynamic_web/PHP/alistapart_tutorials/managing_content_php/template.php?page=home&style=default

You will see what I mean

ansarka · March 26, 2008

plz check this line

<body>

<?php $_GET['$style'];

	$_GET['$page'];?>

this should be like


<body>

<?php $_GET['style'];

	$_GET['page'];?>

rahish · March 26, 2008

Thanks,

I have done that but it didn't change anything. Is it that

if ($style == "") {
$style="default";
}
if ($page == "") {
$page="home";
}

is overriding the $_GET part?

ansarka · March 26, 2008

change to below code

may be in the server the global variables may be off

if global variables are off you cannt get the get or post variables directly you hv to get it through

$_GET[variable] or $_POST[variable]

<?php
setcookie ("styleCookie", $style, time()+40000000);
?>

<?php

if ($_GET[style] == "") {
$style="default";
}
if ($_GET

 == "") {
$page="home";
}

?>

rahish · March 26, 2008

Thanks

Now I am getting

Warning: Cannot modify header information - headers already sent by (output started at ******template.php:2) in ******template.php on line 3

There is a header redirect in an index.php file, I am wondering if this code should be in template.php

<?php



if ($styleCookie == "") {
$style="default";
}
else {
$style=$styleCookie;
}

Header ("Location: template.php?page=home&style=$style");

?>

ansarka · March 26, 2008

add ob_start(); in line one of index.php

and i dont know why you are using header redirect in index.php

<?php
ob_start();


if ($styleCookie == "") {
$style="default";
}
else {
$style=$styleCookie;
}

Header ("Location: template.php?page=home&style=$style");

?>

rahish · March 26, 2008

Thanks

Because the tutorial says so, I am starting to think this tutorial was a bad idea.

The code in index.php just redirects to template php with headers but also sets the css to default if no other variables are passed via the browser.

Why does it come up with header errors when you go directly to template.php there is no header info in this page in the first place?

rahish · March 26, 2008

bump

BlueSkyIS · March 26, 2008

latest code for index.php?

rahish · March 26, 2008

Sorry, yes

here it is

<?php
ob_start();


if ($styleCookie == "") {
$style="default";
}
else {
$style=$styleCookie;
}

Header ("Location: template.php?page=home&style=$style");

?>

rahish · March 27, 2008

bump

ansarka · March 27, 2008

in template.php add

ob_start();

in line number one

<?php
ob_start();
setcookie ("styleCookie", $style, time()+40000000);
?>

;) ;)

rahish · March 27, 2008

Thanks for that,

That removed the header error. It still didn't work but I noticed the reason why.

Although as was suggested earlier in this post that

<?php

if ($_GET[style] == "") {
$style="default";
}
if ($_GET

 == "") {
$page="home";
}

?>

was needed

It also needs

<?php $style = $_GET['style'];

	$page= $_GET['page'];

	?>

Now it works, thanks a lot.

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PHP Template error on production server but works on localhost?

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