href into variable

porco

Hi, this one is just annoying me and has been for the last few hours. It sounds simple. I have this list of links and all I want to do is put the right value into a variable. Say the Government link is clicked then a variable named $topic=Government. If Opinion, then $topic=Opinion.

I have run out of ideas really. At one stage I got a bit of a response but haven't been able to get $topic to echo anything since. So blank slate.....

I am running a session and would like to set this as a session variable, but for now I'd be happy to pick it up that the appropriate link was clicked....

echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"technology\">Technology</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"enterprise\">Enterprise</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"research\">Research</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"government\">Government</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"people\">People</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"lifestyle\">Life Style</a> | \n";
echo "<a class=\"nav\" href=\"index2.php\" target=\"_top\" value=\"opinion\">Opinion</a>\n";

mtimdog

href=\"index2.php?topic=government\"

On the next page, get the topic by the superglobal $GET
i.e. echo $GET['topic'];---->government

porco

I have been trying that, is in my code at the moment but for some reason it doesn't do anything. That's what has me stumped...

porco

Yep on the second page I have this 🆒

echo $_GET['topic'];

While the first page is this .....

echo "<a class=\"nav\" href=\"index2.php?topic=technology\" target=\"_top\">Technology</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=enterprise\" target=\"_top\">Enterprise</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=research\" target=\"_top\">Research</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=government\" target=\"_top\">Government</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=people\" target=\"_top\">People</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=lifestyle\" target=\"_top\">Life Style</a> | \n";
echo "<a class=\"nav\" href=\"index2.php?topic=opinion\" target=\"_top\">Opinion</a>\n";

porco

The value is entering into the url like it should
ie. ?value=opinion

but nothing at the other end. I will have to play around for a while I think.

dpluth

Do you have a session_start() in the page you are sending the URL info to?

porco

Yes its there. I have had sessions working for a month without a problem so I cant figure it out.

porco

What about making it a session variable instead of url encoding? The session is working fine in both these pages.

There are more ways to skin a php cat....

porco

At the moment it is just the shell of a page with the echo.

<?php

session_start();

<html>
<head>
<title>Display Categories</title>
<link rel="stylesheet" type="text/css" href="stylesheets/styles.css">
</head>

<?php

echo $_GET['topic'];

</body>
</html>

There is nowhere I can see that it could be having trouble.

The sending page though is much larger.

<?php

session_start();

echo $topic;

<body class="top">
<?php

echo "<h1 class=\"title\">i-Web</h1>\n";
echo "<h2 class=\"subtitle\">News Monitoring Service</h2>\n";

echo "<form method=\"post\" name=\"searchform\" action=\"display_categories.php\" target=\"main\">\n";

echo "<div class=\"login\">\n";
echo "<p>You are logged in as $loginname   <a href=\"index3.php\" target=\"_top\" value=\"changeprofile\">Change $loginname Profile</a>   <a href=\"index6.php\" target=\"_top\" value=\"addarticles\">Add Articles</a>   <a href=\"index.php\" target=\"_parent\">Log Out</a></p>\n";
echo "</div>\n";

echo "<div class=\"navbar\">\n";
echo "<p>\n";

echo "<a class=\"nav\" href=\"index7.php\" target=\"_top\">All News Home</a> | \n"; // go to default_login.php -->

echo "</p>\n";
echo "</div>\n";

echo "<div class=\"searchbar\">\n";
echo "<select name=\"searchlist\">\n";
echo "<option selected value=\"1\">ALL</option>\n";
echo "<option value=\"2\">WORLD</option>\n";
echo "<option value=\"3\">NATIONAL</option>\n";
echo "<option value=\"4\">LOCAL</option>\n";
echo "</select>   \n";

echo "<input class=\"searchtext\" type=\"text\" name=\"searchval\" size=\"40\">   \n";

echo "<input class=\"searchbutton\" type=\"submit\" name=\"search\" value=\"Search\">\n";
echo "</div>\n";
echo "</form>\n";

if ($logout)
{
session_unset();
session_destroy();
}

?>
</body>
</html>

................................

Any ideas would be greatly appreciated as it is kind of a project stopper. Thanks everyone.

porco

Hi, I can't work this out. Why doesn't this url encoding work here. It puts the ?topic=technology or whatever into the url bar but I can't get it to echo on the next page.

Here is my sending code....

<?php

session_start();

<body>
<?php

echo "<form method=\"post\" name=\"searchyform\" action=\"\display_categories.php\" target=\"main\">\n";

echo "<a class=\"nav\" href=\"index7.php\" target=\"_top\">All News Home</a> | \n";

echo "</form>\n";

?>
</body>
</html>

And here is the page that is echoing, or should be....

<?php

session_start();

<html>
<head>
<title>Display Categories</title>
<link rel="stylesheet" type="text/css" href="stylesheets/styles.css">
</head>

<?php

echo $_GET['topic'];

</body>
</html>

If anyone can tell me how the superglobal may be stuffed, or whatever, any workarounds would much be appreciated. Ciao

porco

OK further tracking and testing (listen may learn a bit) shows that. In my other similar page it calls

href="index?topic=technology"

and it works fine. This was done as an experiment. Unfortunately it is pre-login version so I can't possibly give them the content there. Was an experiment.

*Now check this out.. the one that doesn't work says

href="index2?topic=technology"

This is because I have frames working on the site (big hassle but stuck in project specs, don't blame me). If I try to use url encoding to any page that isn't a product of the initial index page the superglobal doesn't work. Only for pages using the original index page.

Unfortunately to save complexity (I thought) I created another index2 page to field off other frames sections where the top frame was post login. Here is the error of my ways..

So ## QUESTION TO ALL AND SUNDRY

Given that it is impossible to pass url encoding between these two pages (and 6 days to project due = 50+ pages) then is there another way to do this??

As sessions are working fine is there a way to set a session variable to say "$topic = technology" when the url is clicked. Because conceptually this should be able to be done, even if I don't know the answer myself.

So interesting stuff! I apologise if I might have appeared short in this thread but it is a bit testing to be constantly asked the same simple coding stuff once you get past that level. So thanks everyone who contributed. Much appreciated.

Any input on this point of the game would be appreciated, too.

Ciao

porco

Remodelling project's structure. This will be cure...

Thankyou all..

leatherback

Hm..

Stupid (hopefully) question but ehh..

When you say that "If I try to use url encoding to any page that isn't a product of the initial index page the superglobal doesn't work",

do you mean you have a link to a frame, and you want one of the pages in the frame to change to a certain topic?

That will NOT work, since the FRAME defines specific pages to be loaded, and in their definitions, the variable is not defined, unless you put that in your frames defitinition.

Anyway. Your session.. I think the only way to really do that would be by having an in-between page, which will register the variable in the sesion, and thenload the next page. But you SHOULDN'T have to. I thnink that there is a logical mistake in the way the site was set-up.

Use print_r($GET) on the pages where you want to use tha passed variables,m to check the content of the $GET array. THink that will help you a lot in solving the problem.

porco

Yes this was an initial not looking at integeration in tech specs etc. Oh my god I've done it again!! 🆒

Anyway, what it is is that when you want to change multiple frames in a site you use target=_top. Top being the index, top of the heirarchy. So you basically program your index page to give out the frames pages depending on input set by a flag. It gets icky after a while.

Anyway all of my pre-login frames are set up on index.

To ease complexity I chose to use index2, index3, index4 for delivering post-login frames pages. This works fine for sessions.

But, so I have discovered, it doesn't work fine for url encoding for some reason. I also have a menu tree I am integrating and it uses url encoding too. So it is time to remodel the frames delivery. A low tech but icky task at best.

So now I am wiser and stronger and slightly less sane, and I now know never to let anyone force me to use frames against my will in the rest of my career. I am doing a uni project by the way. 🆒

A lesson to us all. Personally I don't even use tables unless I have to lol. My website is www.nortypig.com if you want a look at what I am about. Blog linked to it of course.

Thanks for the help all, cyas on the dark side.

Ciao

porco

Oh so what i am saying is as long as you go via index.php at the top of the heirarchy you can easily pass info between frames via url encoding.

Sessions are unaffected by it all.

Ciao

porco

The url encoding problem still exists. Site rebuild, all frames pages being processed by index.php but not able to pass values via url encoding POST-login. Very late night.

Just thought I would mention my theory was disproven... wrong again.

Any more ideas

:rolleyes:

leatherback

Hi Porco,

Plac this line:
print_r($GET);
on the pages for which you cannot get the variables to pass, and look at the source of the resulting output (page-> view source). This will give you an idea what IS in the $GET array. That way you have an idea of whether the variable is not passed, or whether it is modified / emptied etcetc.

PS: Hobard? My colleage is moving there in 3 weeks, bought a nice stretch of land close to the coast, and is building a house with his girl there. Supposed to be an increadible place!

porco

done it...
nothing in the get array
something like Array(0) {} if i recall

scarey ay

late for uni lecture, gotta run 🆒

porco

Leatherback
Noooo tell your friend to turn back its alll liesssss. They eat people here and the women are all sheep....

That's why I never leave the computer to go outside.

God if they find out I said this they will come and take me away to be tourist sandwiches......

Yep empty Get Array..... grrr

I spoke to a phd this morning and he says because I am going through the frames page index2.php I am definately losing the variable there.

I thought frames pages were just container pages really. So my page calls frames page calls other pages. He says I just need to store it as a session variable on the frames page, but no luck there either. It must be my 5 hours sleep and off to lectures...

Maybe I'm a bit thick 🙂

ciao

leatherback

Hi,

That's what I thought (And mentioned earlier, I think 😃 ) What you can do:

In your index.php which holds the frame definition:


<frameset rows="100,*" border="0">
    <frame name="top" src="top.php" marginwidth="10" marginheight="10" scrolling="no" frameborder="0" noresize">
    <frame name="main" src="content.php?main=<? echo $GET['main']; ?>" marginwidth="10" marginheight="10" scrolling="auto" frameborder="0" noresize >
</frameset>

which should transport your variables.

Hehe, No, I do not believe that all woman are sheep on Taz. Although I know that the rumour about sheep and rubber bots comes from down under..
Get some sleep. I have just fallen out of bed, and am on my way to my PC at work. :-(