original_string: protected function findCrumb($title)
      {
          foreach ($this->crumbs as $key => $crumb) {
              if ($crumb['title'] === $title) {
                  return $key;
              }
          }
  
          return null;
      }
code: protected function findCrumb($title)
      {
          foreach ($this->crumbs as $key => $crumb) {
              if ($crumb['title'] === $title) {
                  return $key;
              }
          }
  
          return null;
      }
code_tokens: protected function findCrumb ( $ title ) { foreach ( $ this -> crumbs as $ key => $ crumb ) { if ( $ crumb [ 'title' ] === $ title ) { return $ key ; } } return null ; }
docstring: Search a crumb in the current stack which title matches the one provided as argument.
  If found, the index of the matching crumb will be returned.
  
  @param string $title Title to find.
  @return int|null Index of the crumb found, or null if it can not be found.
docstring_tokens: Search a crumb in the current stack which title matches the one provided as argument . If found the index of the matching crumb will be returned .