original_string: public function getParent($class)
      {
          $classId = $this->getClassId($class);
          if (!isset($classId)) {
              return false;
          }
          $parentClassId = $this->extends[$classId];
          return isset($parentClassId) ? $this->classes[$parentClassId[0]] : null;
      }
code: public function getParent($class)
      {
          $classId = $this->getClassId($class);
          if (!isset($classId)) {
              return false;
          }
          $parentClassId = $this->extends[$classId];
          return isset($parentClassId) ? $this->classes[$parentClassId[0]] : null;
      }
code_tokens: public function getParent ( $ class ) { $ classId = $ this -> getClassId ( $ class ) ; if ( ! isset ( $ classId ) ) { return false ; } $ parentClassId = $ this -> extends [ $ classId ] ; return isset ( $ parentClassId ) ? $ this -> classes [ $ parentClassId [ 0 ] ] : null ; }
docstring: gets parent class
  
  @param string $class
  @retutn string|null|false
docstring_tokens: gets parent class