This code is 25 characters short of your post title than is used in WordPress.
Step - 1 : this code add your function.php file
<?php
function short_title( $after = '', $length ) {
$mytitle = get_the_title();
if( mb_strlen( $mytitle ) > $length ) {
$mytitle = substr( $mytitle, 0, $length );
echo $mytitle . $after;
} else echo $mytitle;
}
?>
Step - 2 : This code add your custom file.
<?php short_title( '...', 30 ); ?>
