public function __construct($_height, $_width)
{
parent::__construct($_height, $_width);
$this->l_rows = arrayFill($this->u_size);
for ($i = 0; $i < $this->u_size; $i++) {
$this->l_rows[$i] = new MatrixRow($this, $i);
}
}
public function __construct($_length, $_offset = 0, \SplFixedArray $_data = null)
{
parent::__construct(1, $_length, $_offset, ACCESS_COLUMNS, $_data);
}
