php-school / learn-you-php

     * @param  string  $substring The prefix to remove

     * @return Stringy Object having a $str without the prefix $substring

     */

    public function removeLeft($substring)

    {

        $stringy = static::create($this->str, $this->encoding);

        if ($stringy->startsWith($substring)) {

            $substringLength = mb_strlen($substring, $stringy->encoding);

            return $stringy->substr($substringLength);

        }

        return $stringy;

    }

    /**

     * Returns a new string with the suffix $substring removed, if present.

     * @param  string  $substring The suffix to remove

     * @return Stringy Object having a $str without the suffix $substring

     */

    public function removeRight($substring)

    {

        $stringy = static::create($this->str, $this->encoding);

        if ($stringy->endsWith($substring)) {

            $substringLength = mb_strlen($substring, $stringy->encoding);

            return $stringy->substr(0, $stringy->length() - $substringLength);

        }

        return $stringy;

    }

    /**

     * Returns a repeated string given a multiplier. An alias for str_repeat.