[wp-trac] [WordPress Trac] #24731: Add a 'multiple' option to wp_dropdown_categories

[WordPress Trac]

#24731: Add a 'multiple' option to wp_dropdown_categories
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 Reporter:  louisremi    |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Template     |    Version:  trunk
 Severity:  normal       |   Keywords:  has-patch
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 `wp_dropdown_categories` has an alternative that allows to select multiple
 categories: `wp_category_checklist`. But sometimes it would be useful to
 create a simple `<select multiple>` using wp_dropdown_categories: there
 are a large number of JS libs and plugins that enhance multiple selects
 (see http://harvesthq.github.io/chosen/ or
 http://ivaynberg.github.io/select2/ ) and are not able to do the same with
 checklists.

 By adding a few lines of code to wp_dropdown_categories, I have been able
 to add a 'multiple' option that adds this attribute to the select element
 and allows an array to be passed as the 'selected' option.

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Ticket URL: <http://core.trac.wordpress.org/ticket/24731>
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