src/Neutrino/Support/Str.php
public static function ucfirst($string)
    {
        return Str::upper(Str::substr($string, 0, 1)) . Str::substr($string, 1);
    }
public static function ucfirst($string)
    {
        return Str::upper(Str::substr($string, 0, 1)) . Str::substr($string, 1);
    }
Make a string's first character uppercase.

@param  string $string

@return string