<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Util;

use const PHP_MAJOR_VERSION;
use const PHP_MINOR_VERSION;
use function array_keys;
use function array_reverse;
use function array_shift;
use function assert;
use function defined;
use function get_defined_constants;
use function get_included_files;
use function in_array;
use function ini_get_all;
use function is_array;
use function is_file;
use function is_scalar;
use function preg_match;
use function serialize;
use function sprintf;
use function str_ends_with;
use function str_starts_with;
use function strtr;
use function var_export;
use Closure;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 *
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final readonly class GlobalState
{
    /**
     * @var list<string>
     */
    private const SUPER_GLOBAL_ARRAYS = [
        '_ENV',
        '_POST',
        '_GET',
        '_COOKIE',
        '_SERVER',
        '_FILES',
        '_REQUEST',
    ];

    /**
     * @var array<string, array<string, true>>
     */
    private const DEPRECATED_INI_SETTINGS = [
        '7.3' => [
            'iconv.input_encoding'       => true,
            'iconv.output_encoding'      => true,
            'iconv.internal_encoding'    => true,
            'mbstring.func_overload'     => true,
            'mbstring.http_input'        => true,
            'mbstring.http_output'       => true,
            'mbstring.internal_encoding' => true,
            'string.strip_tags'          => true,
        ],

        '7.4' => [
            'iconv.input_encoding'       => true,
            'iconv.output_encoding'      => true,
            'iconv.internal_encoding'    => true,
            'mbstring.func_overload'     => true,
            'mbstring.http_input'        => true,
            'mbstring.http_output'       => true,
            'mbstring.internal_encoding' => true,
            'pdo_odbc.db2_instance_name' => true,
            'string.strip_tags'          => true,
        ],

        '8.0' => [
            'iconv.input_encoding'       => true,
            'iconv.output_encoding'      => true,
            'iconv.internal_encoding'    => true,
            'mbstring.http_input'        => true,
            'mbstring.http_output'       => true,
            'mbstring.internal_encoding' => true,
        ],

        '8.1' => [
            'auto_detect_line_endings'     => true,
            'filter.default'               => true,
            'iconv.input_encoding'         => true,
            'iconv.output_encoding'        => true,
            'iconv.internal_encoding'      => true,
            'mbstring.http_input'          => true,
            'mbstring.http_output'         => true,
            'mbstring.internal_encoding'   => true,
            'oci8.old_oci_close_semantics' => true,
        ],

        '8.2' => [
            'auto_detect_line_endings'     => true,
            'filter.default'               => true,
            'iconv.input_encoding'         => true,
            'iconv.output_encoding'        => true,
            'iconv.internal_encoding'      => true,
            'mbstring.http_input'          => true,
            'mbstring.http_output'         => true,
            'mbstring.internal_encoding'   => true,
            'oci8.old_oci_close_semantics' => true,
        ],

        '8.3' => [
            'auto_detect_line_endings'     => true,
            'filter.default'               => true,
            'iconv.input_encoding'         => true,
            'iconv.output_encoding'        => true,
            'iconv.internal_encoding'      => true,
            'mbstring.http_input'          => true,
            'mbstring.http_output'         => true,
            'mbstring.internal_encoding'   => true,
            'oci8.old_oci_close_semantics' => true,
        ],
    ];

    /**
     * @throws Exception
     */
    public static function getIncludedFilesAsString(): string
    {
        return self::processIncludedFilesAsString(get_included_files());
    }

    /**
     * @param list<string> $files
     *
     * @throws Exception
     */
    public static function processIncludedFilesAsString(array $files): string
    {
        $excludeList = new ExcludeList;
        $prefix      = false;
        $result      = '';

        if (defined('__PHPUNIT_PHAR__')) {
            // @codeCoverageIgnoreStart
            $prefix = 'phar://' . __PHPUNIT_PHAR__ . '/';
            // @codeCoverageIgnoreEnd
        }

        // Do not process bootstrap script
        array_shift($files);

        // If bootstrap script was a Composer bin proxy, skip the second entry as well
        if (str_ends_with(strtr($files[0], '\\', '/'), '/phpunit/phpunit/phpunit')) {
            // @codeCoverageIgnoreStart
            array_shift($files);
            // @codeCoverageIgnoreEnd
        }

        foreach (array_reverse($files) as $file) {
            if (!empty($GLOBALS['__PHPUNIT_ISOLATION_EXCLUDE_LIST']) &&
                in_array($file, $GLOBALS['__PHPUNIT_ISOLATION_EXCLUDE_LIST'], true)) {
                continue;
            }

            if ($prefix !== false && str_starts_with($file, $prefix)) {
                continue;
            }

            // Skip virtual file system protocols
            if (preg_match('/^(vfs|phpvfs[a-z0-9]+):/', $file)) {
                continue;
            }

            if (!$excludeList->isExcluded($file) && is_file($file)) {
                $result = 'require_once \'' . $file . "';\n" . $result;
            }
        }

        return $result;
    }

    public static function getIniSettingsAsString(): string
    {
        $result = '';

        $iniSettings = ini_get_all(null, false);

        assert($iniSettings !== false);

        foreach ($iniSettings as $key => $value) {
            if (self::isIniSettingDeprecated($key)) {
                continue;
            }

            $result .= sprintf(
                '@ini_set(%s, %s);' . "\n",
                self::exportVariable($key),
                self::exportVariable((string) $value),
            );
        }

        return $result;
    }

    public static function getConstantsAsString(): string
    {
        $constants = get_defined_constants(true);
        $result    = '';

        if (isset($constants['user'])) {
            foreach ($constants['user'] as $name => $value) {
                $result .= sprintf(
                    'if (!defined(\'%s\')) define(\'%s\', %s);' . "\n",
                    $name,
                    $name,
                    self::exportVariable($value),
                );
            }
        }

        return $result;
    }

    public static function getGlobalsAsString(): string
    {
        $result = '';

        foreach (self::SUPER_GLOBAL_ARRAYS as $superGlobalArray) {
            if (isset($GLOBALS[$superGlobalArray]) && is_array($GLOBALS[$superGlobalArray])) {
                foreach (array_keys($GLOBALS[$superGlobalArray]) as $key) {
                    if ($GLOBALS[$superGlobalArray][$key] instanceof Closure) {
                        continue;
                    }

                    $result .= sprintf(
                        '$GLOBALS[\'%s\'][\'%s\'] = %s;' . "\n",
                        $superGlobalArray,
                        $key,
                        self::exportVariable($GLOBALS[$superGlobalArray][$key]),
                    );
                }
            }
        }

        $excludeList   = self::SUPER_GLOBAL_ARRAYS;
        $excludeList[] = 'GLOBALS';

        foreach (array_keys($GLOBALS) as $key) {
            if (!$GLOBALS[$key] instanceof Closure && !in_array($key, $excludeList, true)) {
                $result .= sprintf(
                    '$GLOBALS[\'%s\'] = %s;' . "\n",
                    $key,
                    self::exportVariable($GLOBALS[$key]),
                );
            }
        }

        return $result;
    }

    private static function exportVariable(mixed $variable): string
    {
        if (is_scalar($variable) || $variable === null ||
            (is_array($variable) && self::arrayOnlyContainsScalars($variable))) {
            return var_export($variable, true);
        }

        return 'unserialize(' . var_export(serialize($variable), true) . ')';
    }

    /**
     * @param array<mixed> $array
     */
    private static function arrayOnlyContainsScalars(array $array): bool
    {
        $result = true;

        foreach ($array as $element) {
            if (is_array($element)) {
                $result = self::arrayOnlyContainsScalars($element);
            } elseif (!is_scalar($element) && $element !== null) {
                $result = false;
            }

            if (!$result) {
                break;
            }
        }

        return $result;
    }

    private static function isIniSettingDeprecated(string $iniSetting): bool
    {
        return isset(self::DEPRECATED_INI_SETTINGS[PHP_MAJOR_VERSION . '.' . PHP_MINOR_VERSION][$iniSetting]);
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox