Remove html tags and truncate string adding a trim marker.

util_helpers.php

/**
 * Remove html tags and truncate string
 *
 * @link   https://www.php.net/manual/en/function.mb-strimwidth.php
 * @author Andrei Andrade
 *
 * @param string $string     The string being decoded.
 * @param int    $width      The width of the desired trim.
 * @param string $trimMarker A string that is added to the end of string when string is truncated.
 *
 * @return string
 */
function truncate($string, $width, $trimMarker = '...')
{
    $string = trim(strip_tags($string));
    $string = mb_strimwidth($string, 0, $width, $trimMarker, "UTF-8");

    return $string;
}