<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarDumper\Dumper;

use Symfony\Component\VarDumper\Cloner\Data;
use Symfony\Component\VarDumper\Cloner\DumperInterface;

/**
 * Abstract mechanism for dumping a Data object.
 *
 * @author Nicolas Grekas <p@tchwork.com>
 */
abstract class AbstractDumper implements DataDumperInterface, DumperInterface
{
    public const DUMP_LIGHT_ARRAY = 1;
    public const DUMP_STRING_LENGTH = 2;
    public const DUMP_COMMA_SEPARATOR = 4;
    public const DUMP_TRAILING_COMMA = 8;

    public static $defaultOutput = 'php://output';

    protected $line = '';
    protected $lineDumper;
    protected $outputStream;
    protected $decimalPoint = '.';
    protected $indentPad = '  ';
    protected $flags;

    private string $charset = '';

    /**
     * @param callable|resource|string|null $output  A line dumper callable, an opened stream or an output path, defaults to static::$defaultOutput
     * @param string|null                   $charset The default character encoding to use for non-UTF8 strings
     * @param int                           $flags   A bit field of static::DUMP_* constants to fine tune dumps representation
     */
    public function __construct($output = null, string $charset = null, int $flags = 0)
    {
        $this->flags = $flags;
        $this->setCharset($charset ?: \ini_get('php.output_encoding') ?: \ini_get('default_charset') ?: 'UTF-8');
        $this->setOutput($output ?: static::$defaultOutput);
        if (!$output && \is_string(static::$defaultOutput)) {
            static::$defaultOutput = $this->outputStream;
        }
    }

    /**
     * Sets the output destination of the dumps.
     *
     * @param callable|resource|string $output A line dumper callable, an opened stream or an output path
     *
     * @return callable|resource|string The previous output destination
     */
    public function setOutput($output)
    {
        $prev = $this->outputStream ?? $this->lineDumper;

        if (\is_callable($output)) {
            $this->outputStream = null;
            $this->lineDumper = $output;
        } else {
            if (\is_string($output)) {
                $output = fopen($output, 'w');
            }
            $this->outputStream = $output;
            $this->lineDumper = [$this, 'echoLine'];
        }

        return $prev;
    }

    /**
     * Sets the default character encoding to use for non-UTF8 strings.
     *
     * @return string The previous charset
     */
    public function setCharset(string $charset): string
    {
        $prev = $this->charset;

        $charset = strtoupper($charset);
        $charset = null === $charset || 'UTF-8' === $charset || 'UTF8' === $charset ? 'CP1252' : $charset;

        $this->charset = $charset;

        return $prev;
    }

    /**
     * Sets the indentation pad string.
     *
     * @param string $pad A string that will be prepended to dumped lines, repeated by nesting level
     *
     * @return string The previous indent pad
     */
    public function setIndentPad(string $pad): string
    {
        $prev = $this->indentPad;
        $this->indentPad = $pad;

        return $prev;
    }

    /**
     * Dumps a Data object.
     *
     * @param callable|resource|string|true|null $output A line dumper callable, an opened stream, an output path or true to return the dump
     *
     * @return string|null The dump as string when $output is true
     */
    public function dump(Data $data, $output = null): ?string
    {
        if ($locale = $this->flags & (self::DUMP_COMMA_SEPARATOR | self::DUMP_TRAILING_COMMA) ? setlocale(\LC_NUMERIC, 0) : null) {
            setlocale(\LC_NUMERIC, 'C');
        }

        if ($returnDump = true === $output) {
            $output = fopen('php://memory', 'r+');
        }
        if ($output) {
            $prevOutput = $this->setOutput($output);
        }
        try {
            $data->dump($this);
            $this->dumpLine(-1);

            if ($returnDump) {
                $result = stream_get_contents($output, -1, 0);
                fclose($output);

                return $result;
            }
        } finally {
            if ($output) {
                $this->setOutput($prevOutput);
            }
            if ($locale) {
                setlocale(\LC_NUMERIC, $locale);
            }
        }

        return null;
    }

    /**
     * Dumps the current line.
     *
     * @param int $depth The recursive depth in the dumped structure for the line being dumped,
     *                   or -1 to signal the end-of-dump to the line dumper callable
     */
    protected function dumpLine(int $depth)
    {
        ($this->lineDumper)($this->line, $depth, $this->indentPad);
        $this->line = '';
    }

    /**
     * Generic line dumper callback.
     */
    protected function echoLine(string $line, int $depth, string $indentPad)
    {
        if (-1 !== $depth) {
            fwrite($this->outputStream, str_repeat($indentPad, $depth).$line."\n");
        }
    }

    /**
     * Converts a non-UTF-8 string to UTF-8.
     */
    protected function utf8Encode(?string $s): ?string
    {
        if (null === $s || preg_match('//u', $s)) {
            return $s;
        }

        if (!\function_exists('iconv')) {
            throw new \RuntimeException('Unable to convert a non-UTF-8 string to UTF-8: required function iconv() does not exist. You should install ext-iconv or symfony/polyfill-iconv.');
        }

        if (false !== $c = @iconv($this->charset, 'UTF-8', $s)) {
            return $c;
        }
        if ('CP1252' !== $this->charset && false !== $c = @iconv('CP1252', 'UTF-8', $s)) {
            return $c;
        }

        return iconv('CP850', 'UTF-8', $s);
    }
}

• [D] ContextProvider
• [F] AbstractDumper.php
  Delete
• [F] CliDumper.php
  Delete
• [F] ContextualizedDumper.php
  Delete
• [F] DataDumperInterface.php
  Delete
• [F] HtmlDumper.php
  Delete
• [F] ServerDumper.php
  Delete

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.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

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?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

Yes, we use advanced encryption and security protocols to protect your payment details.

Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

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?

Yes, you can view and track your payment status in the account dashboard