code: protected function dumpToString($abs)
      {
          $val = '';
          if ($abs['stringified']) {
              $val = $abs['stringified'];
          } elseif (isset($abs['methods']['__toString']['returnValue'])) {
              $val = $abs['methods']['__toString']['returnValue'];
          }
          if (!$val) {
              return '';
          }
          $valAppend = '';
          $len = \strlen($val);
          if ($len > 100) {
              $val = \substr($val, 0, 100);
              $valAppend = '&hellip; <i>('.($len - 100).' more chars)</i>';
          }
          $toStringDump = $this->debug->output->html->dump($val);
          $parsed = $this->debug->utilities->parseTag($toStringDump);
          $classArray = \explode(' ', $parsed['attribs']['class']);
          $classArray[] = 't_stringified';
          if ($len > 100) {
              $classArray[] = 't_string_trunc';   // truncated
          }
          $attribs = array(
              'class' => $classArray,
              'title' => isset($parsed['attribs']['title'])
                  // ie a timestamp will have a human readable date in title
                  ? (!$abs['stringified'] ? '__toString() : ' : '').$parsed['attribs']['title']
                  : (!$abs['stringified'] ? '__toString()' : null),
          );
          return $this->debug->utilities->buildTag(
              'span',
              $attribs,
              $parsed['innerhtml'].$valAppend
          )."\n";
      }
docs: Dump object's __toString or stringified value
  
  @param array $abs object abstraction
  
  @return string html