webring - a scalable webring library
Copyright 2000 Robert Peake
Released under the GNU Lesser Public License
webring provides an easy-to-configure solution for creating a webring. All URLs are stored in one file (webring.urls), and each link in the webring references
one of three functions: next (next.php), previous (prev.php), or random (rand.php) at this site.
webring requires PHP>3 (tested on 3.015) with support for $HTTP_REFERER, and depends upon the loopedArray class (included). webring links will only
work on browsers that allow redirects using the http-equiv meta tag.
webring uses the loopedArray object, which simulates a "looped" array data type with a number of basic functions. See "loopedArray.api" for an outline of how
to use this class. See "webring.api" for an outline of the webring class.
Simply add urls, one per line, to the file webring.urls. Then reference next.php, prev.php, and rand.php from the pages in your webring.
IMPORTANT SIDE EFFECTS
Note that if next.php or prev.php are referenced from URLs outside the web ring (not in the webring.urls file) the following behavior will occur:
prev.php will redirect the last URL in webrings.url, or the root directory if webrings.url is empty
next.php will redirect to the second URL in webrings.url, or the first URL in webrings.url if webrings.url only contains one URL, or the root directory if
webrings.url is empty.
CURRENT CODE DESIGNED TO SUPPORT TOP-LEVEL URLS.
SEE webring.inc FOR EXPLANATION OF (QUICK AND EASY)
MODIFICATION TO ALLOW FOR FULL-URL MATCHES IN YOUR WEBRING.
This software is released as-is, with no implications of warranty or fiteness to a particular use. The author implies no obligation to provide techincal support for
this software on the part of himself or his company.