src/Utils/Str.php
public static function classify($value)
    {
        if (isset(self::$classified[$value])) {
            return self::$classified[$value];
        }

        $converted = ucwords(str_replace(['-', '_'], ' ', $value));

        return self::$classified[$value] = str_replace(' ', '', $converted);
    }
public static function classify($value)
    {
        if (isset(self::$classified[$value])) {
            return self::$classified[$value];
        }

        $converted = ucwords(str_replace(['-', '_'], ' ', $value));

        return self::$classified[$value] = str_replace(' ', '', $converted);
    }
Gets the upper camel case form of a string.

@param string $value
@return string