final private function getKeyForEventlog() {

		// force to array
		$properties = (array)$this->keyProperties;

		$keyParts = array();

		foreach ($properties as $propertyName) {
			$keyParts[] = $propertyName . '=' . $this->$propertyName;
		}

		return implode(', ', $keyParts);

	}
final private function getKeyForEventlog() {

		// force to array
		$properties = (array)$this->keyProperties;

		$keyParts = array();

		foreach ($properties as $propertyName) {
			$keyParts[] = $propertyName . '=' . $this->$propertyName;
		}

		return implode(', ', $keyParts);

	}
final private function getKeyForEventlog ( ) { // force to array $ properties = ( array ) $ this -> keyProperties ; $ keyParts = array ( ) ; foreach ( $ properties as $ propertyName ) { $ keyParts [ ] = $ propertyName . '=' . $ this -> $ propertyName ; } return implode ( ', ' , $ keyParts ) ; }
Return a list of primary or compound key of this object.

@return string
Return a list of primary or compound key of this object .