Question

I am trying to get users that are either administrator, editor or author as their role from the wordpress database

$args = array('orderby' => 'post_count', 'order' => 'DESC','number' => 20, 'role' => 'administrator' );

That gets the administrator so i thought this would work

$args = array('orderby' => 'post_count', 'order' => 'DESC','number' => 20, 'role' => array('administrator','editor','author') );

It returned no results. ?

Answer 1

You cannot pass multiple roles in $args, you must call get_users once for each role

From the documentation:

• role – Limit the returned authors to the role specified.

Note that “role” is singular in the parameter description. Call get_users once for each role then merge the arrays together of the results