how to link pages with an id

[nahsorhseda]

does ny one know how to link pages with an id ....i mean if i have the following pages:
a.php
b.php
c.php
d.php
e.php
i want to link to them using a id like this index.php?id=1

so that i can hide the real url

 

[aivanov]

you could put an if or case statement that requires appropriate file depending on the id.

 

[Jesse]

What do you mean by it? try searching on the internet for the php code/tutorial.

 

[kajasweb]

You can use .htaccess for doing this. Visit http://forum.modrewrite.com/ for more help.

 

[coolv1994]

i had that exact question anyway heres the code:

<?php 
if(!$_GET['id']) include('main.php'); 
if($_GET['id'] == 'a') include('a.php'); 
if($_GET['id'] == 'b') include('b.php'); 
if($_GET['id'] == 'c') include('c.php'); 
if($_GET['id'] == 'd') include('d.php'); 
if($_GET['id'] == 'e') include('e.php'); 
?>

put this code where the content goes and move the existing content to main.php

 

[Penguin129]

If the page you want to include always matches the id, then you can just do:

<?php
if($_GET["id"]) {
  include "{$_GET["id"]}.php";
} else {
  include "main.php";
}
?>

Easier than making an if condition for every id you use.

 

[mitamata]

Do not do that. What if the user manually changes the value of "id" to something that you don't have? Then the include will fail and things will go boom! Always assume anything in the GET or POST variable can be tampered with.

You can do as coolv1994 suggested, but I'd add another line after the ifs. Something like:

else include('invalid.php');

I use something similar with a game I'm making, only I get the filename from the database. So for example the link index.php?view=home includes a file called home_view.inc. If you have many pages, using a database to store this info is advisable, so that you won't have to go and edit the index page every time you want to add another page/id.

 

[DefecTalisman]

Maybe something like this would be better for large amounts of links :

<?php
$id_array = array(
	'a' => '1',
	'b' => '2',
	'c' => '3',
	'd' => '4'
);

$id = $_GET['id'];

foreach ($id_array as $name => $tmp_id)
{
	if($tmp_id == $id)
	{
		$inc = $name.'.php';
		break;
	}
	else
	{
		$inc = 0;
	}
}

if($inc == TRUE)
{
	include($inc);
}
?>

 

[nahsorhseda]

wait you guys i really dont understand whats goin on ok ill make myself clear ....consider i have a directory called folderA IN THAT directory i ahve the foolowin files ...index.php login.php,logout.php,somepage.php,somepage2.php
so iwant to link the rest of my pages using link with ids sp that i may not give out my real url ....ie for safety reasons

 

[Penguin129]

If I'm understanding your correctly, at least one of us has to have answered that above. Even if you clarified that they're in a folder, it's not that hard to add to one of the examples above and use it. Here's a revision of mine.

<?php
// Prevents using ../ in the url to access upper directories
$id = str_replace("..", "", $_GET["id"]);
if($id) {
  include "folderA/{$id}.php";
} else {
  include "folderA/main.php";
}
?>

 

[DefecTalisman]

Using a combination of the above scripts.
This should handle reasonable large amounts of key=>value (url=>id).
There doesn't have to be any association between the link and it destination

<?php

// A key=>value hash that contains the key(url to link to) => value(the id that is associated with it)
$id_array = array(
    'a' => '1',
    'b' => '2',
    'c' => '3',
    'd' => '4',
    'login' => 'abc',
    'sub_folder/some_page' => '69is_best'
);

// A link to an error page when the id is not recognised
$error_page = 'error.php';

// Prevents using ../ in the url to access upper directories
$id = str_replace("..", "", $_GET["id"]);

foreach ($id_array as $name => $tmp_id)
{
    if($tmp_id == $id)
    {
        $inc = $name.'.php';
        break;
    }
    else
    {
        $inc = $error_page;
    }
}

if($inc == TRUE)
{
    include($inc);
}
else
{
    $inc = $error_page;
    include($inc);
}

// So from the above code you would link like this 'http://www.domain.com/this_script.php?id=abc' to take
// you to login page

 

[nahsorhseda]

thanks guys! especially to penguin129