public function invalidate()
	{
		// Only invalidate if this tag is valid to prevent infinite loops
		if (!$this->invalid)
		{
			$this->invalid = true;
			foreach ($this->cascade as $tag)
			{
				$tag->invalidate();
			}
		}
	}
public function invalidate()
	{
		// Only invalidate if this tag is valid to prevent infinite loops
		if (!$this->invalid)
		{
			$this->invalid = true;
			foreach ($this->cascade as $tag)
			{
				$tag->invalidate();
			}
		}
	}
public function invalidate ( ) { // Only invalidate if this tag is valid to prevent infinite loops if ( ! $ this -> invalid ) { $ this -> invalid = true ; foreach ( $ this -> cascade as $ tag ) { $ tag -> invalidate ( ) ; } } }
Invalidate this tag, as well as tags bound to this tag

@return void
Invalidate this tag as well as tags bound to this tag