protected function _pushContext(&$local_context) {
		$new = array();
		$new[] =& $local_context;
		foreach (array_keys($this->_context) as $key) {
			$new[] =& $this->_context[$key];
		}
		$this->_context = $new;
	}
protected function _pushContext(&$local_context) {
		$new = array();
		$new[] =& $local_context;
		foreach (array_keys($this->_context) as $key) {
			$new[] =& $this->_context[$key];
		}
		$this->_context = $new;
	}
protected function _pushContext ( & $ local_context ) { $ new = array ( ) ; $ new [ ] = & $ local_context ; foreach ( array_keys ( $ this -> _context ) as $ key ) { $ new [ ] = & $ this -> _context [ $ key ] ; } $ this -> _context = $ new ; }
Push a local context onto the stack.

@access protected
@param array &$local_context
@return void
Push a local context onto the stack .