What mean the PHP documentation tags : #@+ and #@-

I found this in Zend Framework :

 /**#@+
 * @access protected
 */

/**
 * @var Zend_Mail_Transport_Abstract
 * @static
 */
protected static $_defaultTra开发者_开发知识库nsport = null;

...

/**#@-*/

Are these "open" and "close" tags ? Are they supported by phpdoc ? I can't find any documentation about it (and it's not possible to google it)

Thank you.

That string defines a docBlock template.

The "docblock template" is a set of tags that you want applied to all individual docblocks inside the template markers. In your example above, it appears that you want the "@access protected" tag applied to all docblock'd elements inside the markers, starting with the $_defaultTransport element.

In short, it's a shortcut to avoid duplication. In your example, you've saved yourself from duplicating "@access protected" across the docblocks of many class variables.