code: public function extract($pathExtracted)
      {
          $pathExtracted = str_replace('\\', '/', $pathExtracted);
          $list = $this->pclzip->listContent();
          if (empty($list)) {
              return 0;
          }
  
          foreach ($list as $entry) {
              $filename = str_replace('\\', '/', $entry['stored_filename']);
              $parts    = explode('/', $filename);
  
              if (!strncmp($filename, '/', 1) ||
                  array_search('..', $parts) !== false ||
                  strpos($filename, ':') !== false
              ) {
                  return 0;
              }
          }
  
          // PCLZIP_CB_PRE_EXTRACT callback returns 0 to skip, 1 to resume, or 2 to abort
          return $this->pclzip->extract(
              PCLZIP_OPT_PATH, $pathExtracted,
              PCLZIP_OPT_STOP_ON_ERROR,
              PCLZIP_OPT_REPLACE_NEWER,
              PCLZIP_CB_PRE_EXTRACT, function ($p_event, &$p_header) use ($pathExtracted) {
                  return strncmp($p_header['filename'], $pathExtracted, strlen($pathExtracted)) ? 0 : 1;
              }
          );
      }
docs: Extract files from archive to target directory
  
  @param string $pathExtracted Absolute path of target directory
  @return mixed  Array of filenames if successful; or 0 if an error occurred