original_string: public function addExtensions($extensions)
      {
          $extensions = array_merge($this->_extensions, (array)$extensions);
          $this->_extensions = array_unique($extensions);
      }
code: public function addExtensions($extensions)
      {
          $extensions = array_merge($this->_extensions, (array)$extensions);
          $this->_extensions = array_unique($extensions);
      }
code_tokens: public function addExtensions ( $ extensions ) { $ extensions = array_merge ( $ this -> _extensions , ( array ) $ extensions ) ; $ this -> _extensions = array_unique ( $ extensions ) ; }
docstring: Add additional extensions to what is already in current scope
  
  @param string|array $extensions One or more extensions to add
  @return void
docstring_tokens: Add additional extensions to what is already in current scope