Add Member Directory Online Tab

yzc_add_md_online_tab.php

<?php
/**
 * Add Member Directory Online Tab .
 */
function yzc_add_md_online_tab() {
    $online_count= yzc_get_online_users_total();

    ?>
    <style type="text/css">
        
    .yz-tabs-list-gradient #members-online i {
        background: #ff2f20;
        background: url(<?php echo YZ_PA; ?>images/dotted-bg.png),linear-gradient(to left, #ff2f20 , #ff1162 );
        background: url(<?php echo YZ_PA; ?>images/dotted.png),-webkit-linear-gradient(right, #ff2f20 , #ff1162 );
    }

    .yz-tabs-list-gradient .loading#members-online i {
        background: transparent;
    }

    </style>
    <li id="members-online" class="yzmt-directory-tab">
            <a href="#"><i class="fas fa-fire"></i><?php printf( __( 'Online Users %1s', 'youzer' ), '<span>' . $online_count . '</span>' ); ?></a>
    </li>

    <?php

}

add_action( 'bp_members_directory_member_types', 'yzc_add_md_online_tab' );
/**
 * Get Online Users Total.
 */
function yzc_get_online_users_total() {


    global $bp, $wpdb;

    // Init Data
    $interval = apply_filters( 'bp_user_query_online_interval', 15 );
    $component = buddypress()->members->id;
    
    // Request.    
    $online_count = $wpdb->get_var( "SELECT COUNT(*) FROM {$bp->members->table_name_last_activity} WHERE component = '$component' AND type = 'last_activity' AND date_recorded >= DATE_SUB( UTC_TIMESTAMP(), INTERVAL $interval MINUTE )" );

    return $online_count;

}

/**
 * Members Directory - Get Online Members.
 */
function yzc_get_md_online_members_list( $loop ) {

    if ( bp_is_members_directory() && isset( $_POST['scope'] ) && $_POST['scope'] == 'online' ) {
        $loop['type'] = 'online';
    }

    return $loop;
}

add_filter( 'bp_after_has_members_parse_args', 'yzc_get_md_online_members_list', 9999 );