<?php
// Custom profile search
function custom_profile_search()
{
    global $wpdb, $bp;

    $userids = array();
    $search_fields_id = array(4, 5, 8, 65, 106, 117, 118, 119, 122, 244, 245, 264, 265);
    $search_quote = trim($_POST['search_quote']);
    $allowed_users_ids = array();
    $options = get_option('contributors_list');

    if ($options && count($options) > 0)
        foreach ($options as $allowed_user_id => $value)
            $allowed_users_ids[] = $allowed_user_id;

    if ($_POST['custom_profile_search'] != true && $search_quote == "")
    {
        $userids = $allowed_users_ids;
    }
    else
    {
        if (bp_has_profile('hide_empty_fields=0')):
            while (bp_profile_groups()): bp_the_profile_group();
                while (bp_profile_fields()): bp_the_profile_field();

                    $id = bp_get_the_profile_field_id();

                    if (!in_array($id, $search_fields_id))
                        continue;

                    $sql = "SELECT user_id
                            FROM {$bp->profile->table_name_data}
                            WHERE field_id = $id";

                    $sql .= " AND value LIKE '%%$search_quote%%'";

                    $found = $wpdb->get_results($wpdb->prepare($sql));

                    if (count($found) > 0)
                    {
                        foreach ($found as $user)
                        {
                            $userid = $user->user_id;

                            if (!in_array($userid, $allowed_users_ids))
                                continue;

                            if (!in_array($userid, $userids))
                                $userids[] = $userid;
                        }
                    }
                endwhile;
            endwhile;
        endif;
    }

    return $userids;
}