iladarsda/get_emails_by_role.php

## get_emails_by_role.php
function get_emails_by_role($role) {

    $arr = array();
    $args = array("role" => $role);
    $users = get_users($args );

    foreach ($users as $key => $value) {
        $arr[] = $value->data->user_email;
    }

    return $arr;

}

## load_css_styles.php
<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); ?>" type="text/css" />
	function get_emails_by_role($role) {

	$arr = array();
	$args = array("role" => $role);
	$users = get_users($args );

	foreach ($users as $key => $value) {
	$arr[] = $value->data->user_email;
	}

	return $arr;

	}