mb_strwidth

Supported Versions: PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8
Return width of string
<?php mb_strwidth(string $string, ?string $encoding = null): int
Logo laravel/framework laravel/framework 
<?php     public static function limit($value, $limit = 100, $end = '...')

    {

        if (mb_strwidth($value, 'UTF-8') <= $limit) {

            return $value;

        }
src/Illuminate/Support/Str.php