Innovation Award
March 2007
Number 6 |
HTTP is a protocol that provides several means to negotiate the content that is served.
Negotiating content provides several ways to save bandwidth and server CPU usage by either skip serving cached content or compress the content before serving.
This class can be use to perform several content negotiating actions, thus simplifying the process of making Web applications more efficient.
Manuel Lemos |
Conteg is used to negotiate the current HTTP Request response.
Most PHP-produced webpages are slower to arrive at the browser than they need to be. Conteg is designed to auto-allow full use of HTTP Content Negotiation. Even in it's most minimal form--3 lines of code--it will reduce server bandwidth + speed up document delivery three- to five-fold.
Accept-Encoding:
Load-balanced compressed output if the browser accepts it is auto-negotiated by default.
Expires:
Cache-Control:
Last-Modified:
Conteg sends an Expires header of 1 hour by default. Cache-Control + Last-Modified headers can be added by means of setup switches, in which case Conteg will auto-negotiate If-Modified-Since + If-Unmodified-Since, auto-sending a `304 Not Modified' if appropriate.
ETag:
Ranges:
If turned on via setup switches, Conteg will auto-negotiate If-None-Match, If-Match, If-Range + Range, auto-sending `406 Not Acceptable', `412 Precondition Failed', `416 Requested Range Not Satisfiable' or `206 Partial content' if appropriate.
Charset:
Language:
Media-Type:
If turned on via setup switches, Conteg will report these within the document headers. Class functions are provided to allow content negotiation outside the Class.
Conteg reports the Referer, browser User-Agent and Operating System.
The class can also serve custom error-pages, auto-fixed for serving to Microsoft Internet Explorer browsers (404 Not Found, 410 Gone, and other).
3 lines of code to implement on a page. All setup parameters have defaults. All defaults may be changed. < 0.002 secs in typical operation. In use on busy websites right now.
| Project record: |
conteg |
| Popularity score: |
14.42 |
| Vitality score: |
1.0 |
| There are not enough user ratings to display for this class. |
 If you know an application of this package, send a message to the author to add a link here.
| File |
Role |
Description |
  Intro.0.13.txt |
Doc. |
Introduction to Conteg, and to Content Negotiation + Cache-Control. |
| how-to.0.13.txt |
Doc. |
Basic implementation using Conteg, including coding examples. |
| custom-error-howto.0.13.txt |
Doc. |
Info + brief How-To on creating custom error pages, including coding examples. |
| php-with-html-plus...otes-howto.0.13.txt |
Doc. |
Brief How-To on using Conteg to restore Content-Negotiation with disk-files when processed through PHP, plus logging Compression stats with Apache, including coding examples. |
| Conteg.include.0.13.7 |
Class |
Complete include file for the Class (Plain text, Unix LF) |
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