original_string: public function delete($fileName)
      {
          $path = $this->getPathBase($fileName);
  
          if (!file_exists($path)) {
              return;
          }
  
          return unlink($path);
      }
code: public function delete($fileName)
      {
          $path = $this->getPathBase($fileName);
  
          if (!file_exists($path)) {
              return;
          }
  
          return unlink($path);
      }
code_tokens: public function delete ( $ fileName ) { $ path = $ this -> getPathBase ( $ fileName ) ; if ( ! file_exists ( $ path ) ) { return ; } return unlink ( $ path ) ; }
docstring: removes the file from the cache
  @param  string $key
  @return bool
docstring_tokens: removes the file from the cache