On Sun, 2009-01-25 at 10:51 +0100, Carlos Medina wrote:
> Michael Kubler schrieb:
> > The easiest way would be to use GET parameters (i.e data in the actual
> > URL).
> > There are a number of ways you can structure a HTML link to get what you
> > want.
> > You can have something basic (but not very elegant looking), like
> > <a href="index.php?page=Home">Home</a>
> >
> > Then in your index.php code you'd probably have something like :
> >
> > <?php
> > $page = urldecode(*$_GET['page']); *
> > include_once header.inc; //Include a script that contains the
> > general header information
> > if(is_file(pages/*$page*.inc;)) //make sure they haven't requested a
> > non-existant file
> > {
> > include_once pages/*$page*.inc; //Doesn't have to be .inc you
> > could simply output HTML data if that's all your using.
> > }
> > else
> > {
> > include_once pages/Home.inc; //If the user wanted a file that
> > doesn't exist, then just take them to the home page (or you could
> > take them to an error page if that's what you want).
> > }
> > include_once footer.inc; //Which would contain the footer if you've
> > got one.
> > ?>
> >
> >
> > This is approximately how I do it although sometimes have a functions
> > file I call, or a config file with basic presets, and various other
> > things. I use .inc (for inclusion) as the file extension, so I can
> > easily differentiate between .php files that customers will use (such as
> > index.php, admin.php, login.php, etc..), and the included files.
> >
> > In the header file I usually have something like that below.
> >
> > ----------- header.inc starts below this line ---------------
> >
> > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
> > <html lang="en">
> > <head>
> >
> > <title><?php echo *$page*; ?> - Insert Company or Website Name</title>
> >
> > <!-- Meta Tags -->
> > <meta http-equiv="content-type" content="application/xhtml+xml;
> > charset=utf-8">
> > <meta name="robots" content="index, follow">
> >
> > <!-- CSS -->
> > <link rel="stylesheet" href="css/main.css"
> > media="screen,projection,tv,tty,handheld,embossed,braille,aural"
> > type="text/css">
> > <link rel="stylesheet" href="css/print.css" media="print"
> > type="text/css">
> > </head>
> > <body>
> > <div id="header">
> > <h1>HEADER INFORMATION (or image) HERE</h1>
> > <br />
> > <!-- end header div -->
> > </div>
> > <div id="mainNav">
> > <?php
> > *$main_navigation_list* = array(0 => array( 'name' => 'Home',
> >
> > 'url' => 'index.php?page=Contact',
> >
> > 'title' => 'The home page'),
> >
> > 1 => array('name' =>
> > 'Contact' ,
> > 'url'
> > => 'index.php?page=Contact',
> >
> > 'title' => 'The contact details')
> > );
> > ?>
> > <ul id="main_nav_list">
> > <?php
> > foreach(*$main_navigation_list* as *$index* => *$nav_list*)
> > {
> > echo '<li><a href="' . *$nav_list*['url'] .'" title="' .
> > *$nav_list*['title'] . '">'. *$nav_list*['name'] . '</a></li>';
> > }
> > ?>
> > </ul>
> > </div>
> > <!-- end mainNav div -->
> > </div>
> >
> > --------------- END header.inc ----------
> >
> >
> >
> > In the header.inc I've manually created an array, then got PHP to go
> > through the array to add the name, URL and other details from the array,
> > but that's just to simplify this, usually I pull the navigation data
> > from a database (or if there's no MySQL installed I might unserialise it
> > from a file).
> >
> > There are other ways of pulling the data. If you want nice URLs, you can
> > have something like /pages/Home/ and then have a mod_rewrite rule in
> > Apache to then change that into index.php?page=Home, (although you'll
> > also need to change the <a href> to the new links. If you aren't running
> > on apache, you can manually find the page information by doing
> > print_r($_SERVER), and seeing what bits and pieces you can put together,
> > but that's not nearly as good or reliable.
> >
> > Sorry if there's too much info, but I'm guessing this is roughly what
> > you'll be doing.
> > If you want to have more than one variable (like say a sub page) then
> > you add *&* between each variable. E.g
> >
> > <a href="index.php?page=Home&sub_page=more%20news">Home -
> > Archived News</a>
> >
> > You can usually get away with just using *&* as the separator but it
> > probably won't validate properly if your making it in xhtml (as you
> > should be). Also, if your not sure what the %20 means (a space) then
> > look up urlencode <http://au.php.net/manual/en/function.urlencode.php>
> > and urldecode <http://au.php.net/url_decode>.
> >
> > Michael Kubler
> > *G*rey *P*hoenix *P*roductions <http://www.greyphoenix.biz>
> >
> >
> >
> > Christopher W wrote:
> >> At least I hope it is simple...
> >>
> >> I am trying to get an HTML menu link to set a variable's value. For
> >> example, when a user clicks the "Home" button on my page it would
> >> cause $page = "home"; or clicking the "About Us" button will set
> >> $page="about_us"; etc.
> >>
> >> I think this should be fairly simple but being completely new to php I
> >> just cannot seem to get it right.
> >>
> >> Any help would be greatly appreciate.
> >>
> >> Thank you in advance.
> >>
> >
> I think this is the best way to open hackers a door to your system. Read
> more about PHP please.
>
> Regards
>
> Carlos Medina
>
That's not a great answer is it? The guy asks for help and says he can't
get his head around what he's read of PHP so far, so you go tell him to
read some more rather than point out why the code he's using is a
problem.
To the problem:
I'd have a check variable set itself based on a check at the top like
this:
$page = (isset($_GET['page))?$_GET['page']:'home';
This way, the $page variable is set to whatever was clicked, but
defaults to 'home' if nothing has been clicked.
Ash
www.ashleysheridan.co.uk
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