- Code: Select all
// Set our variables for self ( $self ), and our install uri ( $iuri )
$self = pathinfo(__FILE__, PATHINFO_BASENAME);
$iuri = str_replace($self, '', $_SERVER['SCRIPT_NAME']); // we strip out $self
// so we don't parse
// it twice if you
// use the .htaccess
// OK, now I'm going to make them constants so that I can use them in my nifty
// function which can be placed in any script and not be stuck within the
// environment config script if you don't want it there.
define('SELF', $self);
define('IURI', $iuri);
// Ok, now here's my workhorse function, just feed it the number for the segment
// that you want and it will output it's value.
function seg($n)
{
// off by one fix
$n = $n - 1; // this way we can count from 1 instead of 0
// get our uri
$ruri = $_SERVER['REQUEST_URI'];
// explode our install uri into an array
$iuri = explode('/', IURI);
// now lets do some filtering, we'll be using preg_replace so that we will
// only using the first occurance of any terms that may appear in our SELF
// or IURI
$ruri = preg_replace('/'.SELF.'/', '', $ruri, 1);
// now we are going to take our $iuri array and filter out the individual
// components
foreach($iuri as $k => $v)
{
// you will note that I don't use the key, because I don't really care
// what the key ($k) is, it's not relevant to the stripping process, and only
// helps with the iteration of the array values ($v)
$ruri = preg_replace('/'.$v.'/', '', $ruri, 1);
}
// now to create our segment array
// this line is read in reverse, first we explode the array with explode()
// then we get rid of any empty values with array_filter()
// and finally we reset the array index with array_merge() by merging
// our new array with an empty array.
$seg = array_merge(array(), array_filter(explode('/', $ruri)));
// if the segment requested is not set, let's return false.
if( ! isset($seg[$n])) return FALSE;
// if the segment starts with a ? then it's a $_GET value and not an uri
// value, so we don't want to parse it.
$value = $seg[$n]
if( $value[0] == "?") return FALSE; // [0] will grab the first character of
// the variable
// ok, now that we've determined everything is kosher, and that our value
// not only exists, but is a valid value, let's filter it, and return it.
$value = htmlspecialchars($seg[$n], ENT_QUOTES);
return $value;
}
simple, right?
OK, now if you are using Apache, here's a simple method to remove the index.php from your URI. I've got it so that it will either use mod_rewrite, or if mod_rewrite is unavailable, it'll use a dirtier method using the 404 redirect. Just put it into a file at the root of your sites install path, and save it as .htaccess. ( This is for Apache, other server software may not be capable of this, or may require a different method. In fact, if they are capable, they will most certainly require a different method )
- Code: Select all
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]
</IfModule>
<IfModule !mod_rewrite.c>
ErrorDocument 404 /index.php
</IfModule>
OK, well that's pretty much it in a nutshell, hope it helps someone out in their next web project.
