[wp-trac] [WordPress Trac] #14910: Simplify sanitize_key() and use it in more places

[WordPress Trac]

#14910: Simplify sanitize_key() and use it in more places
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 Reporter:  ryan          |       Owner:     
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  3.1
Component:  Performance   |     Version:     
 Severity:  normal        |    Keywords:     
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 sanitize_key() does some unnecessary work that can be eliminated.

 sanitize_user() is still being called in places where sanitize_key()
 should be used and can burn up to a percent of page load time.    It is
 called 26 times for a default install.  Using a simplified sanitize_key()
 instead of sanitize_user() will save a little time.

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Ticket URL: <http://core.trac.wordpress.org/ticket/14910>
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