Wordpress Short Title

// Add Custom Title

function short_title($after = '', $length) {
    $mytitle = get_the_title();
    if ( strlen($mytitle) > $length ) {
    $mytitle = substr($mytitle,0,$length);
    echo $mytitle . $after;
    } else {
    echo $mytitle;
    }
}


<?php short_title('...', 40); ?>