JudeRosario

add_filter( 'app_message_headers', 'custom_headers' );

function custom_headers( $message_headers ){
$message_headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
return  $message_headers;
}
    function follow_up( $value ) {
    global $wpdb, $appointments;

    $a = $appointments;