public function exists()
	{
		if ($this->isExternal())
		{
			return true;
		}

		if ($this->declaration && $this->name)
		{
			return true;
		}

		if ($this->targetPath() && file_exists($this->targetPath()))
		{
			return true;
		}

		return false;
	}
public function exists()
	{
		if ($this->isExternal())
		{
			return true;
		}

		if ($this->declaration && $this->name)
		{
			return true;
		}

		if ($this->targetPath() && file_exists($this->targetPath()))
		{
			return true;
		}

		return false;
	}
public function exists ( ) { if ( $ this -> isExternal ( ) ) { return true ; } if ( $ this -> declaration && $ this -> name ) { return true ; } if ( $ this -> targetPath ( ) && file_exists ( $ this -> targetPath ( ) ) ) { return true ; } return false ; }
Does asset exist?

@return  boolean
Does asset exist?