<?php

namespace PhpOffice\PhpSpreadsheet\Worksheet;

use Iterator as NativeIterator;
use PhpOffice\PhpSpreadsheet\Cell\Cell;
use PhpOffice\PhpSpreadsheet\Collection\Cells;

/**
 * @template TKey
 *
 * @implements NativeIterator<TKey, Cell>
 */
abstract class CellIterator implements NativeIterator
{
    public const TREAT_NULL_VALUE_AS_EMPTY_CELL = 1;

    public const TREAT_EMPTY_STRING_AS_EMPTY_CELL = 2;

    public const IF_NOT_EXISTS_RETURN_NULL = false;

    public const IF_NOT_EXISTS_CREATE_NEW = true;

    /**
     * Worksheet to iterate.
     *
     * @var Worksheet
     */
    protected $worksheet;

    /**
     * Cell Collection to iterate.
     *
     * @var Cells
     */
    protected $cellCollection;

    /**
     * Iterate only existing cells.
     *
     * @var bool
     */
    protected $onlyExistingCells = false;

    /**
     * If iterating all cells, and a cell doesn't exist, identifies whether a new cell should be created,
     *    or if the iterator should return a null value.
     *
     * @var bool
     */
    protected $ifNotExists = self::IF_NOT_EXISTS_CREATE_NEW;

    /**
     * Destructor.
     */
    public function __destruct()
    {
        // @phpstan-ignore-next-line
        $this->worksheet = $this->cellCollection = null;
    }

    public function getIfNotExists(): bool
    {
        return $this->ifNotExists;
    }

    public function setIfNotExists(bool $ifNotExists = self::IF_NOT_EXISTS_CREATE_NEW): void
    {
        $this->ifNotExists = $ifNotExists;
    }

    /**
     * Get loop only existing cells.
     */
    public function getIterateOnlyExistingCells(): bool
    {
        return $this->onlyExistingCells;
    }

    /**
     * Validate start/end values for 'IterateOnlyExistingCells' mode, and adjust if necessary.
     */
    abstract protected function adjustForExistingOnlyRange(): void;

    /**
     * Set the iterator to loop only existing cells.
     */
    public function setIterateOnlyExistingCells(bool $value): void
    {
        $this->onlyExistingCells = (bool) $value;

        $this->adjustForExistingOnlyRange();
    }
}

• [D] AutoFilter
• [D] Drawing
• [D] Table
• [F] AutoFilter.php
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• [F] AutoFit.php
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• [F] BaseDrawing.php
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• [F] CellIterator.php
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• [F] Column.php
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• [F] ColumnCellIterator.php
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• [F] ColumnDimension.php
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• [F] ColumnIterator.php
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• [F] Dimension.php
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• [F] Drawing.php
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• [F] HeaderFooter.php
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• [F] HeaderFooterDrawing.php
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• [F] Iterator.php
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• [F] MemoryDrawing.php
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• [F] PageBreak.php
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• [F] PageMargins.php
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• [F] PageSetup.php
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• [F] Protection.php
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• [F] Row.php
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• [F] RowCellIterator.php
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• [F] RowDimension.php
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• [F] RowIterator.php
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• [F] SheetView.php
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• [F] Table.php
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• [F] Validations.php
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• [F] Worksheet.php
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About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

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FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

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Is my payment information secure?

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Can I add multiple cards to my NFC Pay wallet?

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How do I transfer money to another user?

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How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

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