blah.php?page=news

[Anon]

As in the topic whatever the page is with a question mark and the things after it I see on many sites using php. I was wondering what it accomplishes and how may I implement it? Does it run on just one page? Such as index.php and there is just a variable for each page?

[Anon]

This the "GET" method of HTML which PHP uses to pass variables around.

blah.php : is the page. It can be any page
seen alot with index.php because
it allows someone to make a
single page divided with if
statments as to what gets
displayed.
? : separtor between the data and the
page name
page=new : is "variable" equal to "value"

additionally there are
& : which is used to string serval
key and values together, ie.
page=new&id=23
+ : used to for spaces if we wanted
the value to be "new page" we
would need it be.
page=new+page

This method allows you to GET variables for the page from the $QUERY_STRING. In this case $page is equal to "new".

[Anon]

in other words ...

page.php?page=new

the code for page.php would look something like this.

<?php

if(!$page){
// $page not set so set it //
$page = 'old';
}
if($page == 'new'){
echo"this is a new page";
}
if($page == 'old'){
echo"this is an old page";
}

?>
<a href="page.php?page=new">New page</a><br>
<a href="page.php?page=old">Old page</a><br>
<a href="page.php">No page</a><br>