voku / Stringy

     *

     * @return static

     */

    public function lastSubstringOf(string $needle, bool $beforeNeedle = false): self

    {

        return static::create(

            $this->utf8::str_substr_last($this->str, $needle, $beforeNeedle, $this->encoding),

            $this->encoding

        );

    }

    /**

     * Gets the substring after (or before via "$beforeNeedle") the last occurrence of the "$needle".

     *

     * @return static

     */

    public function lastSubstringOfIgnoreCase(string $needle, bool $beforeNeedle = false): self

    {

        return static::create(

            $this->utf8::str_isubstr_last($this->str, $needle, $beforeNeedle, $this->encoding),

            $this->encoding

        );

    }

    /**

     * Returns the length of the string.

     *

     * @return static

     */

    public function substringOf(string $needle, bool $beforeNeedle = false): self

    {

        return static::create(

            $this->utf8::str_substr_first($this->str, $needle, $beforeNeedle, $this->encoding),

            $this->encoding

        );

    }

    /**

     * Gets the substring after (or before via "$beforeNeedle") the first occurrence of the "$needle".

     *

     * @return static

     */

    public function substringOfIgnoreCase(string $needle, bool $beforeNeedle = false): self

    {

        return static::create(

            $this->utf8::str_isubstr_first($this->str, $needle, $beforeNeedle, $this->encoding),

            $this->encoding

        );

    }

    /**

     * Surrounds $str with the given substring.