mod_browser.cfile, and is compiled in by default. It provides for setting environment variables based on the browser. This module is part of Apache 1.2.* only. From Apache 1.3 onwards
mod_setenvifprovides the functionality of this module.
This module allows you to set environment variables based on the name of the browser accessing your document, based on the
User-Agent header field. This is especially useful when combined with a conditional HTML language such as XSSI or PHP, and can provide for simple browser-based negotiation of HTML features.
The BrowserMatch directive defines environment variables based on the User-Agent header. The first argument should be a POSIX.2 extended regular expression (similar to an egrep-style regex). The rest of the arguments give names of variables to set. These take the form of either "
!varname" or "
varname=value". In the first form, the value will be set to "1". The second will remove the given variable if already defined, and the third will set the variable to the value given by
value. If a User-Agent string matches more than one entry, they will be merged. Entries are processed in the order they appear, and later entries can override earlier ones.
BrowserMatchNoCase directive is semantically identical to the
BrowserMatch directive. However, it provides for case-insensitive matching. For example:
BrowserMatchNoCase mac platform=macintosh BrowserMatchNoCase win platform=windows