public function isWithinCachedBlock(Mage_Core_Block_Abstract $block) {
        $step = $block;
	$i = 0;
        while ($i++ < 20 && $step instanceof Mage_Core_Block_Abstract) {
            if (!is_null($step->getCacheLifetime())) {
                return true;
            }
            $step = $step->getParentBlock();
        }
        return false;
    }
public function isWithinCachedBlock(Mage_Core_Block_Abstract $block) {
        $step = $block;
	$i = 0;
        while ($i++ < 20 && $step instanceof Mage_Core_Block_Abstract) {
            if (!is_null($step->getCacheLifetime())) {
                return true;
            }
            $step = $step->getParentBlock();
        }
        return false;
    }
public function isWithinCachedBlock ( Mage_Core_Block_Abstract $ block ) { $ step = $ block ; $ i = 0 ; while ( $ i ++ < 20 && $ step instanceof Mage_Core_Block_Abstract ) { if ( ! is_null ( $ step -> getCacheLifetime ( ) ) ) { return true ; } $ step = $ step -> getParentBlock ( ) ; } return false ; }
Check if a block is within another one that is cached

@param Mage_Core_Block_Abstract $block
@return bool
@author Fabrizio Branca
@since 2011-01-24
Check if a block is within another one that is cached