This is a good trick to use when you want your site to be more likely to be indexed by search engines. Some robots don't follow links that have query strings on the end (ie, links with "?var=something"), so you can fool them by using the CGI environment variable PATH_INFO instead (however you choose to access it). You can also use it to make pages look half dynamic and half static for the search engines, to try and control what they index. For instance, if you've got a forum type script that has posts archived in the format "/forum/msgnum/", you can add bits at the end with the query string like "/forum/msgnum/?mode=threaded" or whatever (I think slashdot might do something like this, not entirely sure though).
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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