Profcerto

// WP_User_Query arguments
$args = array(
	'role'           => 'um_professor',
	'include'        => array( Inglês ),
	'search'         => 'inglês',
	'number'         => '100',
	'order'          => 'DESC',
	'orderby'        => 'user_registered',
	'fields'         => array( 'idiomas' ),
);

// The User Query
$idioma = new WP_User_Query( $args );

// The User Loop
if ( ! empty( $idioma->results ) ) {
	foreach ( $idioma->results as $user ) {
		// do something
	}
} else {
	// no users found
}