mod_rewrite Available Languages: en | fr Summary This module uses a rule-based rewriting engine (based on a regular-expression parser) to rewrite requested URLs on the fly. It supports an unlimited number of rules and an unlimited number of attached rule conditions for each rule, to provide a really flexible and powerful URL manipulation mechanism. The URL manipulations can depend on various tests, of server variables, environment variables, HTTP headers, or time stamps. Even external database lookups in various formats can be used to achieve highly granular URL matching.
We've figured out what mod_rewrite variables look like so we can create rewriterules and condition patterns based on the actual value. This cheatsheet is where we'll lay them all out for quick reference. This cheatsheet changed my life, way more than 301 redirect htaccess. This article is meant to prepare us for the advanced mod_rewrite examples that are soon to be published. Mod_Rewrite Variables Cheatsheet
Htaccess Rewrites are enabled by using the Apache module mod_rewrite , which is one of the most powerful Apache modules and features availale. Htaccess Rewrites through mod_rewrite provide the special ability to Rewrite requests internally as well as Redirect request externally . When the url in your browser's location bar stays the same for a request it is an internal rewrite, when the url changes an external redirection is taking place.
We need to tell Apache where and what to rewrite. You have two options here - more commonly, you can place the code in a .htaccess file. This is nothing more than a text file which when present in a directory will be interpreted by Apache. You may already be familiar with a .htaccess file, as these allow you set all kinds of server options, e.g. as a custom 404 error page. Start Rewriting : mod_rewrite tutorial
Aug 18 2009 Mod_rewrite is an Apache-based rewrite engine for dynamically rewriting URLs. It’s built into Apache servers natively, though not enabled by default. It’s capable of functions beyond simple rewrites, though, some of which are included below. Turn Mod_Rewrite On 10+ Mod_Rewrite Rules You Should Know