[wp-trac] [WordPress Trac] #3308: add_query_arg() removes blank query vars

[WordPress Trac]

#3308: add_query_arg() removes blank query vars
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 Reporter:  markjaquith  |       Owner:  anonymous
     Type:  defect       |      Status:  new      
 Priority:  normal       |   Milestone:  2.1      
Component:  General      |     Version:  2.1      
 Severity:  normal       |    Keywords:           
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 {{{
 skeltoac: can anybody explain why add_query_arg removes blank query vars?
 }}}

 This results in a destructive query var addition, in which existing (but
 blank) args disappear.

 {{{remove_query_arg()}}} was removing by passing a blank string.  Upcoming
 patch moves that to FALSE, which allows blank query vars to be added.

 It also preserves {{{?foo&bar=test}}} vs {{{?foo=&bar=test}}}

 In all, it just preserves the existing QS a whole lot better.

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Ticket URL: <http://trac.wordpress.org/ticket/3308>
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