"self::PARAM_PREFIX.self::$paramCount" mean what?

Yii 1.1 General Discussion
1

For example:

in CDbCriteria class file:




class CDbCriteria extends CComponent

{

	const PARAM_PREFIX=':ycp';

	/**

	 * @var integer the global counter for anonymous binding parameters.

	 * This counter is used for generating the name for the anonymous parameters.

	 */

	public static $paramCount=0;




......


$condition=$column.'='.self::PARAM_PREFIX.self::$paramCount;

$this->params[self::PARAM_PREFIX.self::$paramCount++]=$value;

What does it mean?

Thanks.

2

http://de3.php.net/manual/en/language.oop5.paamayim-nekudotayim.php