[wp-trac] [WordPress Trac] #16692: Add hook to allow plugins to implement custom $wp->parse_request() logic to support arbitrary custom URLs

[WordPress Trac]

#16692: Add hook to allow plugins to implement custom $wp->parse_request() logic to
support arbitrary custom URLs
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 Reporter:  mikeschinkel            |       Owner:
     Type:  enhancement             |      Status:  reviewing
 Priority:  normal                  |   Milestone:  Awaiting Review
Component:  Rewrite Rules           |     Version:  3.1
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch dev-feedback  |
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Comment (by mikeschinkel):

 I wanted to add a use-case for this ticket for the core developers to
 consider, and that is that adding this hook would enable custom URL cache
 functionality.

 For example, if someone has a really complex site with lots of custom post
 types, custom taxonomies and custom permastructs they could have upwards
 of a 1000 rewrite rules to scan for every page load.  Following the 80-20
 rule, 20% of the URLs will be called 80% of the time so with this
 `'wp_parse_request'` hook on a cron task a plugin could cache the most
 recently used ~100 URLs into `wp_options` as an array where the keys would
 be the URLs and the values would be the arrays that calling
 `$wp->parse_request()` would ultimately set `$wp->query_args` to.

 Clearly such a URL cache would not be compatible with the rare plugin that
 has side effects in the hooks called within `$wp->parse_request()` but for
 a site owner with a complex site and heavy traffic they could avoid or
 modify those plugins and make a noticeable difference in performance.

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Ticket URL: <http://core.trac.wordpress.org/ticket/16692#comment:23>
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