id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
23307	shortcode_parse_atts may return empty string	GaryJ		"See http://core.trac.wordpress.org/browser/tags/3.5.1/wp-includes/shortcodes.php#L243 .

If there are no attributes in a shortcode e.g. `[foobar]`, then shortcode_parse_atts returns an empty string. This is not reflected in the long description or `@return` tag.

Ideally though, it should return an empty array, so that it's not only consistent, but writing a shortcode function can type hint the `$atts` argument to be an array e.g.

{{{
add_shortcode( 'foo', 'my_shortcode' );
function my_shortcode( array $atts ) {
   ...
}
}}}

This might also be combined with checking if the incoming `$text` is empty, and returning an empty array immediately."	defect (bug)	new	normal	Awaiting Review	Shortcodes		minor		has-patch