ge'] = str_replace('https://wordpress.org/support/forums/', 'https://wpvar.com/support/', $args['message']);
        }

        return $args;
    }

    /**
     * Get Timezone
     *
     * Gets Correct timezone.
     *
     * @since 1.0.0
     *
     * @return string Timezone format.
     */
    private function timezone()
    {
        $utc = (wp_timezone_override_offset()) ? wp_timezone_override_offset() : get_option('gmt_offset');

        $format = explode('.', $utc);
        $format = str_replace('+', '', $format);

        if (isset($format[1])) {
            $result = (($format[0] > 0) ? '+' . $format[0] : $format[0]) . ':' . (($format[1] == 5) ? '30' : $format[1]);
        } elseif (isset($format[0]) && !isset($format[1])) {
            if ($format[0] == 0) {
                return 0;
            }
            $result = ($format[0] > 0) ? '+' . $format[0] . ':00' : $format[0] . ':00';
        } else {
            $result = 0;
        }

        return $result;
    }

    /**
     * Disable shamsi regarding lang
     *
     * If language is not set to farsi admins can choose to disable shamsi dates.
     *
     * @since 2.1.0
     *
     * @return bool true or false.
     */
    protected function no_lang_no_shamsi()
    {
        if ($this->option('activate-no-lang-no-shamsi', true, false) && get_locale() != 'fa_IR' && get_locale() != 'fa_AF') {
            return true;
        }
        return false;
    }

    /**
     * Disable shamsi dates
     *
     * Disable shamsi dates if link had set so.
     *
     * @since 3.0.0
     *
     * @return bool true or false.
     */
    protected function can_continue()
    {
        if (!$this->pro()) {
            return true;
        }

        $links = $this->option('advanced-group', false, null);
        $actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

        if (!empty($links)) {
            foreach ($links as $link) {
                if ($link['advanced-link'] === $actual_link) {
                    return false;
                }
            }
        }

        return true;
    }

    /**
     * Make dates Jalali aka Shamsi
     *
     * Convert wordpress dates to Shamsi aka Jalali dates.
     *
     * @since 1.0.0
     *
     * @param string $date Date to convert.
     * @param string $format format of dates.
     * @param int $timestamp Date in timestamp.
     * @return mixed converted date.
     */
    public function wp_shamsi($date = null, $format = null, $timestamp = null, $timezone = null)
    {
        if (!$this->can_continue()) {
            return $date;
        }

        if ($timestamp < 0) {
            return $date;
        }

        $date = $this->normalize_date($date);

        $go = apply_filters('wpsh_date_before', true);

        if ($go !== true) {
            return $date;
        }

        /* Hook to add modify formats*/
        $format = apply_filters('wpsh_date_replace_formats', $format);

        $skip_formats = array(
      // DATE_W3C DATE_ATOM DATE_RFC3339
      'Y-m-d\TH:i:sP',
      // DATE_RSS DATE_RFC822 DATE_RFC1036 DATE_RFC1123 DATE_RFC2822
      'D, d M Y H:i:s O',
      // DATE_COOKIE DATE_RFC850
      'l, d-M-Y H:i:s T',
      // DATE_ISO8601
      'Y-m-d\TH:i:sO',
      // DATE_ISO8601 Variant
      'Y-m-d\TH:i:s',
      // DATE_ISO8601 Variant
      'Y-m-d\TH:i',
      // DATE_W3C DATE_ATOM DATE_RFC3339 Variant
      'Y-m-dTH:i:sP'
    );

        /* Hook to add custom formats to be skipped */
        $skip_formats = apply_filters('wpsh_date_skip_formats', $skip_formats);

        if (is_array($skip_formats) && in_array($format, $skip_formats)) {
            return $date;
        }

        if (!$this->option('activate-shamsi', true, true) || $this->no_lang_no_shamsi()) {
            return $date;
        }

        if ($this->option('activate-admin-shamsi', true, false) && is_admin()) {
            return $date;
        }

        if ($format == null) {
            $format = 'Y m d H:i:s';
        }

        $format = ($format == 'F j, Y') ? 'j F, Y' : $format; // Make date readable without changing default format.
        $format = str_replace(',', '', $format);
        $format = str_replace('،', '', $format);
        $format = str_replace('.', '', $format);
        $format = str_replace('S', '', $format);
        $format = str_replace('js', 'j s', $format);
        $format = str_replace('M j', 'j M', $format);
        $format = str_replace('F j', 'j F', $format);

        if ($timezone == null || $timezone == '0') {
            $timezone = $this->timezone();
        }

        if ($this->timezone() == 0) {
            $timezone = 1;
        }

        $date = ($timezone == '1') ? new WPSH_Jalali($timestamp, 'UTC') : new WPSH_Jalali($timestamp, $timezone);
        $date = $date->format($format);

        /* Deprecated since 2.0.0 */
        //$date = $this->persian_num($date);
        /* Filter returned date to extend plugins developement capacity */
        return apply_filters('wpsh_date', $date, $format, $timestamp, $timezone);
    }

    /**
     * Correct diff
     *
     * Correct human readable dates
     *
     * @since 2.1.0
     *
     * @param string $since The difference in human readable text.
     * @param int    $diff  The difference in seconds.
     * @param int    $from  Unix timestamp from which the difference begins.
     * @param int    $to    Unix timestamp to end the time difference.
     * @return string Corrected human readable date.
     */
    public function wp_shamsi_diff($since, $diff, $from, $to)
    {
        if ($from < 0 && $to === time()) {
            $from = date('Y-m-d H:i:s', $from);
            $from = $this->gregorian($from, 'Y-m-d H:i:s');
            $to = time();

            return human_time_diff(strtotime($from), $to);
        } else {
            return $since;
        }
    }

    /**
     * Post date to gregorian
     *
     * Converts any shamsi dates that wants to be stored in posts database to gregorian.
     *
     * @since 2.0.0
     *
     * @param array $data post data in array.
     * @return array new validated post in array.
     */
    public function save_post_date($data)
    {
        $check_point = date('Y', strtotime($data['post_date']));
        if ($check_point >= 1970) {
            return $data;
        }
        $data['post_date'] = $this->gregorian($data['post_date'], 'Y-m-d H:i:s');
        $data['post_date_gmt'] = $this->gregorian($data['post_date_gmt'], 'Y-m-d H:i:s');

        return $data;
    }

    /**
     * Comment date to gregorian
     *
     * Converts any shamsi dates that wants to be stored in comments database to gregorian.
     *
     * @since 2.0.0
     *
     * @param array $data comment data in array.
     * @return array new validated comment data in array.
     */
    public function save_comment_date($data)
    {
        $check_point = date('Y', strtotime($data['comment_date']));
        if ($check_point >= 1970) {
            return $data;
        }
        $data['comment_date'] = $this->gregorian($data['comment_date'], 'Y-m-d H:i:s');
        $data['comment_date_gmt'] = $this->gregorian($data['comment_date_gmt'], 'Y-m-d H:i:s');

        return $data;
    }

    /**
     * Farsi numbers to English
     *
     * Farsi numbers should not be processed within PHP or Database
     *
     * @since 2.0.0
     *
     * @param string $data Date wich we want to validate.
     * @return string new validated date.
     */
    private function normalize_date($data)
    {
        $fa = array(
      '۰',
      '۱',
      '۲',
      '۳',
      '۴',
      '۵',
      '۶',
      '۷',
      '۸',
      '۹'
    );

        $en = array(
      '0',
      '1',
      '2',
      '3',
      '4',
      '5',
      '6',
      '7',
      '8',
      '9'
    );

        $data = str_replace($fa, $en, $data);

        return $data;
    }

    /**
     * Shamsi to Gregorian
     *
     * Convert Shamsi dates to Gregorian.
     *
     * @since 2.0.0
     *
     * @param mixed $date Date to convert.
     * @param string $format Format of converted dates.
     * @return mixed Converted date.
     */
    public function gregorian($date, $format = null)
    {
        $date = $this->normalize_date($date);

        if ($format == null) {
            $format = 'Y m d H:i:s';
        }

        $date = new WPSH_Jalali($date, $this->timezone());
        $date = $date->tog()
      ->format($format);

        return $date;
    }

    /**
     * Latin numbers to Farsi
     *
     * Before showing dates converts its latin numbers to farsi.
     *
     * @deprecated 2.0.0
     *
     * @param int $content Number to convert.
     * @return int Converted number.
     */
    private function persian_num($content) // Display dates in persian numbers evein if jQuery is not available or dates displayed in admin area
    {
        if (!$this->option('persian-num', true, true)) {
            return $content;
        }
        $fa = array(
      '۰',
      '۱',
      '۲',
      '۳',
      '۴',
      '۵',
      '۶',
      '۷',
      '۸',
      '۹'
    );

        $en = array(
      '0',
      '1',
      '2',
      '3',
      '4',
      '5',
      '6',
      '7',
      '8',
      '9'
    );

        $result = str_replace($en, $fa, $content);

        return $result;
    }

    /**
     * Validate pro
     *
     * Pro version validation.
     *
     * @since 3.0.0
     *
     * @return bool true if is validated.
     */
    protected function pro($soft = false)
    {
      $shamsi = WPSH_PLUGINS_PATH . '/wp-shamsi-pro/wp-shamsi-pro.php';
      $exists = file_exists($shamsi) ? true : false;

      if (in_array('wp-shamsi-pro/wp-shamsi-pro.php', apply_filters('active_plugins', get_option('active_plugins'))) && $exists) {
          return true;
        } else {
            return false;
        }

      // @deprecated 4.3.0
      /*
        $serial = !empty(get_option('wpsh_pro_license')) ? get_option('wpsh_pro_license') : false;
        $status = !empty(get_option('wpsh_pro_license_status')) && get_option('wpsh_pro_license_status') == 1 ? true : false;
        $due = !empty(get_option('wpsh_pro_license_due')) && get_option('wpsh_pro_license_due') > current_time('timestamp', false) ? true : false;

        if ($soft) {
          if ($serial && $status && $due) {
            return true;
          } else {
            return false;
          }
        } else {
          if (!in_array('wp-shamsi-pro/wp-shamsi-pro.php', apply_filters('active_plugins', get_option('active_plugins')))) {
            return false;
          }
          if ($serial && $status && $due && $exists) {
            return true;
          } else {
            return false;
          }
        }
      */
    }

    /**
     * Validate VIP
     *
     * VIP version validation.
     *
     * @since 3.0.0
     *
     * @return bool true if is validated.
     */
    protected function vip()
    {
        if (!$this->pro()) {
            return false;
        } else {
            return true; // Since 4.3.0
        }

        $vip = get_option('wpsh_pro_is_vip');

        if (!empty($vip) && $vip == 1) {
            return true;
        }

        return false;
    }

    /**
     * Validate due
     *
     * Pro version due date.
     *
     * @since 3.0.0
     *
     * @return mixed Return in dayas or bool.
     */
    protected function pro_due($int = false)
    {
        if (!$this->pro()) {
            return null;
        }

        $reminder = 30;

        $due = get_option('wpsh_pro_license_due');
        $days = 60 * 60 * 24;
        $now = current_time('timestamp', false);
        $remain = floor(($due - $now) / $days);

        if ($int) {
            return $remain;
        } else {
            if ($remain < $reminder) {
                return true;
            } else {
                return false;
            }
        }
    }

    /**
     * $_GET Mask
     *
     * Mask and escape $_GET
     *
     * @since 2.1.0
     *
     * @param string $key Key of $_GET.
     * @param string $mode String or boolean.
     * @return mixed Escaped result or boolean.
     */
    protected function get($key, $mode = 'string')
    {
        if ($mode == 'string') {
            $get = (isset($_GET[$key])) ? wp_kses_post($_GET[$key]) : null;
        }

        if ($mode == 'bool') {
            $get = (isset($_GET[$key])) ? true : false;
        }

        return $get;
    }

    /**
     * $_POST Mask
     *
     * Mask and escape $_POST
     *
     * @since 2.1.0
     *
     * @param string $key Key of $_POST.
     * @param string $mode String or boolean.
     * @return mixed Escaped result or boolean.
     */
    protected function post($key, $mode = 'string')
    {
        if ($mode == 'string') {
            $post = (isset($_POST[$key])) ? wp_kses_post($_POST[$key]) : null;
        }

        if ($mode == 'bool') {
            $post = (isset($_POST[$key])) ? true : false;
        }

        return $post;
    }
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'WPSH_Core' not found in /home/arasetne/public_html/wp-content/plugins/wp-shamsi/inc/autoload.php:20
Stack trace:
#0 /home/arasetne/public_html/wp-content/plugins/wp-shamsi/wp-shamsi.php(28): require_once()
#1 /home/arasetne/public_html/wp-settings.php(517): include_once('/home/arasetne/...')
#2 /home/arasetne/public_html/wp-config.php(188): require_once('/home/arasetne/...')
#3 /home/arasetne/public_html/wp-load.php(50): require_once('/home/arasetne/...')
#4 /home/arasetne/public_html/wp-blog-header.php(13): require_once('/home/arasetne/...')
#5 /home/arasetne/public_html/index.php(17): require('/home/arasetne/...')
#6 {main}
  thrown in <b>/home/arasetne/public_html/wp-content/plugins/wp-shamsi/inc/autoload.php</b> on line <b>20</b><br />