<?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\Polyfill\Php72;

/**
 * @author Nicolas Grekas <p@tchwork.com>
 * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * @internal
 */
final class Php72
{
    private static $hashMask;

    public static function utf8_encode($s)
    {
        $s .= $s;
        $len = \strlen($s);

        for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) {
            switch (true) {
                case $s[$i] < "\x80": $s[$j] = $s[$i]; break;
                case $s[$i] < "\xC0": $s[$j] = "\xC2"; $s[++$j] = $s[$i]; break;
                default: $s[$j] = "\xC3"; $s[++$j] = \chr(\ord($s[$i]) - 64); break;
            }
        }

        return substr($s, 0, $j);
    }

    public static function utf8_decode($s)
    {
        $s = (string) $s;
        $len = \strlen($s);

        for ($i = 0, $j = 0; $i < $len; ++$i, ++$j) {
            switch ($s[$i] & "\xF0") {
                case "\xC0":
                case "\xD0":
                    $c = (\ord($s[$i] & "\x1F") << 6) | \ord($s[++$i] & "\x3F");
                    $s[$j] = $c < 256 ? \chr($c) : '?';
                    break;

                case "\xF0":
                    ++$i;
                    // no break

                case "\xE0":
                    $s[$j] = '?';
                    $i += 2;
                    break;

                default:
                    $s[$j] = $s[$i];
            }
        }

        return substr($s, 0, $j);
    }

    public static function php_os_family()
    {
        if ('\\' === \DIRECTORY_SEPARATOR) {
            return 'Windows';
        }

        $map = [
            'Darwin' => 'Darwin',
            'DragonFly' => 'BSD',
            'FreeBSD' => 'BSD',
            'NetBSD' => 'BSD',
            'OpenBSD' => 'BSD',
            'Linux' => 'Linux',
            'SunOS' => 'Solaris',
        ];

        return $map[\PHP_OS] ?? 'Unknown';
    }

    public static function spl_object_id($object)
    {
        if (null === self::$hashMask) {
            self::initHashMask();
        }
        if (null === $hash = spl_object_hash($object)) {
            return;
        }

        // On 32-bit systems, PHP_INT_SIZE is 4,
        return self::$hashMask ^ hexdec(substr($hash, 16 - (\PHP_INT_SIZE * 2 - 1), \PHP_INT_SIZE * 2 - 1));
    }

    public static function sapi_windows_vt100_support($stream, $enable = null)
    {
        if (!\is_resource($stream)) {
            trigger_error('sapi_windows_vt100_support() expects parameter 1 to be resource, '.\gettype($stream).' given', \E_USER_WARNING);

            return false;
        }

        $meta = stream_get_meta_data($stream);

        if ('STDIO' !== $meta['stream_type']) {
            trigger_error('sapi_windows_vt100_support() was not able to analyze the specified stream', \E_USER_WARNING);

            return false;
        }

        // We cannot actually disable vt100 support if it is set
        if (false === $enable || !self::stream_isatty($stream)) {
            return false;
        }

        // The native function does not apply to stdin
        $meta = array_map('strtolower', $meta);
        $stdin = 'php://stdin' === $meta['uri'] || 'php://fd/0' === $meta['uri'];

        return !$stdin
            && (false !== getenv('ANSICON')
            || 'ON' === getenv('ConEmuANSI')
            || 'xterm' === getenv('TERM')
            || 'Hyper' === getenv('TERM_PROGRAM'));
    }

    public static function stream_isatty($stream)
    {
        if (!\is_resource($stream)) {
            trigger_error('stream_isatty() expects parameter 1 to be resource, '.\gettype($stream).' given', \E_USER_WARNING);

            return false;
        }

        if ('\\' === \DIRECTORY_SEPARATOR) {
            $stat = @fstat($stream);
            // Check if formatted mode is S_IFCHR
            return $stat ? 0020000 === ($stat['mode'] & 0170000) : false;
        }

        return \function_exists('posix_isatty') && @posix_isatty($stream);
    }

    private static function initHashMask()
    {
        $obj = (object) [];
        self::$hashMask = -1;

        // check if we are nested in an output buffering handler to prevent a fatal error with ob_start() below
        $obFuncs = ['ob_clean', 'ob_end_clean', 'ob_flush', 'ob_end_flush', 'ob_get_contents', 'ob_get_flush'];
        foreach (debug_backtrace(\PHP_VERSION_ID >= 50400 ? \DEBUG_BACKTRACE_IGNORE_ARGS : false) as $frame) {
            if (isset($frame['function'][0]) && !isset($frame['class']) && 'o' === $frame['function'][0] && \in_array($frame['function'], $obFuncs)) {
                $frame['line'] = 0;
                break;
            }
        }
        if (!empty($frame['line'])) {
            ob_start();
            debug_zval_dump($obj);
            self::$hashMask = (int) substr(ob_get_clean(), 17);
        }

        self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - (\PHP_INT_SIZE * 2 - 1), \PHP_INT_SIZE * 2 - 1));
    }

    public static function mb_chr($code, $encoding = null)
    {
        if (0x80 > $code %= 0x200000) {
            $s = \chr($code);
        } elseif (0x800 > $code) {
            $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F);
        } elseif (0x10000 > $code) {
            $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
        } else {
            $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
        }

        if ('UTF-8' !== $encoding = $encoding ?? mb_internal_encoding()) {
            $s = mb_convert_encoding($s, $encoding, 'UTF-8');
        }

        return $s;
    }

    public static function mb_ord($s, $encoding = null)
    {
        if (null === $encoding) {
            $s = mb_convert_encoding($s, 'UTF-8');
        } elseif ('UTF-8' !== $encoding) {
            $s = mb_convert_encoding($s, 'UTF-8', $encoding);
        }

        if (1 === \strlen($s)) {
            return \ord($s);
        }

        $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
        if (0xF0 <= $code) {
            return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
        }
        if (0xE0 <= $code) {
            return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
        }
        if (0xC0 <= $code) {
            return (($code - 0xC0) << 6) + $s[2] - 0x80;
        }

        return $code;
    }
}

• [F] bootstrap.php
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• [F] composer.json
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• [F] LICENSE
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• [F] Php72.php
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• [F] README.md
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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.

• Simplifying Payments, One Tap at a Time.
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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?

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

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