readd implementation folder

implementation/05/composer.json

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+{
+    "name": "lubiana/no-framework",
+    "autoload": {
+        "psr-4": {
+            "Lubiana\\NoFramework\\": "src/"
+        }
+    },
+    "authors": [
+        {
+            "name": "example",
+            "email": "test@example.com"
+        }
+    ],
+    "require": {
+        "php": ">=8.1",
+        "filp/whoops": "^2.14",
+        "laminas/laminas-diactoros": "^2.11"
+    },
+    "require-dev": {
+        "phpstan/phpstan": "^1.6",
+        "symfony/var-dumper": "^6.0",
+        "slevomat/coding-standard": "^7.2",
+        "symplify/easy-coding-standard": "^10.2",
+        "rector/rector": "^0.12.23",
+        "phpstan/extension-installer": "^1.1",
+        "phpstan/phpstan-strict-rules": "^1.2",
+        "thecodingmachine/phpstan-strict-rules": "^1.0"
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "phpstan/extension-installer": true
+        }
+    },
+    "scripts": {
+        "serve": [
+            "Composer\\Config::disableProcessTimeout",
+            "php -S 0.0.0.0:1235 -t public"
+        ],
+        "phpstan": "./vendor/bin/phpstan analyze",
+        "baseline": "./vendor/bin/phpstan analyze --generate-baseline",
+        "check": "./vendor/bin/ecs",
+        "fix": "./vendor/bin/ecs --fix",
+        "rector": "./vendor/bin/rector process"
+    }
+}

implementation/05/ecs.php

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+<?php declare(strict_types=1);
+
+use PhpCsFixer\Fixer\Import\OrderedImportsFixer;
+use PhpCsFixer\Fixer\Operator\NewWithBracesFixer;
+use PhpCsFixer\Fixer\PhpTag\BlankLineAfterOpeningTagFixer;
+use SlevomatCodingStandard\Sniffs\Classes\ClassConstantVisibilitySniff;
+use SlevomatCodingStandard\Sniffs\ControlStructures\NewWithoutParenthesesSniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\AlphabeticallySortedUsesSniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\DisallowGroupUseSniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\MultipleUsesPerLineSniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\NamespaceSpacingSniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\ReferenceUsedNamesOnlySniff;
+use SlevomatCodingStandard\Sniffs\Namespaces\UseSpacingSniff;
+use SlevomatCodingStandard\Sniffs\TypeHints\DeclareStrictTypesSniff;
+use SlevomatCodingStandard\Sniffs\TypeHints\UnionTypeHintFormatSniff;
+use Symplify\EasyCodingStandard\Config\ECSConfig;
+use Symplify\EasyCodingStandard\ValueObject\Set\SetList;
+
+return static function (ECSConfig $config): void {
+    $config->parallel();
+    $config->paths([__DIR__ . '/src', __DIR__ . '/ecs.php', __DIR__ . '/rector.php']);
+    $config->skip([BlankLineAfterOpeningTagFixer::class, OrderedImportsFixer::class, NewWithBracesFixer::class]);
+
+    $config->sets([
+        SetList::PSR_12,
+        SetList::STRICT,
+        SetList::ARRAY,
+        SetList::SPACES,
+        SetList::DOCBLOCK,
+        SetList::CLEAN_CODE,
+        SetList::COMMON,
+        SetList::COMMENTS,
+        SetList::NAMESPACES,
+        SetList::SYMPLIFY,
+        SetList::CONTROL_STRUCTURES,
+    ]);
+
+    // force visibility declaration on class constants
+    $config->ruleWithConfiguration(ClassConstantVisibilitySniff::class, [
+        'fixable' => true,
+    ]);
+
+    // sort all use statements
+    $config->rules([
+        AlphabeticallySortedUsesSniff::class,
+        DisallowGroupUseSniff::class,
+        MultipleUsesPerLineSniff::class,
+        NamespaceSpacingSniff::class,
+    ]);
+
+    // import all namespaces, and event php core functions and classes
+    $config->ruleWithConfiguration(
+        ReferenceUsedNamesOnlySniff::class,
+        [
+            'allowFallbackGlobalConstants' => false,
+            'allowFallbackGlobalFunctions' => false,
+            'allowFullyQualifiedGlobalClasses' => false,
+            'allowFullyQualifiedGlobalConstants' => false,
+            'allowFullyQualifiedGlobalFunctions' => false,
+            'allowFullyQualifiedNameForCollidingClasses' => true,
+            'allowFullyQualifiedNameForCollidingConstants' => true,
+            'allowFullyQualifiedNameForCollidingFunctions' => true,
+            'searchAnnotations' => true,
+        ]
+    );
+
+    // define newlines between use statements
+    $config->ruleWithConfiguration(UseSpacingSniff::class, [
+        'linesCountBeforeFirstUse' => 1,
+        'linesCountBetweenUseTypes' => 1,
+        'linesCountAfterLastUse' => 1,
+    ]);
+
+    // strict types declaration should be on same line as opening tag
+    $config->ruleWithConfiguration(DeclareStrictTypesSniff::class, [
+        'declareOnFirstLine' => true,
+        'spacesCountAroundEqualsSign' => 0,
+    ]);
+
+    // disallow ?Foo typehint in favor of Foo|null
+    $config->ruleWithConfiguration(UnionTypeHintFormatSniff::class, [
+        'withSpaces' => 'no',
+        'shortNullable' => 'no',
+        'nullPosition' => 'last',
+    ]);
+
+    // Remove useless parentheses in new statements
+    $config->rule(NewWithoutParenthesesSniff::class);
+};

implementation/05/phpstan-baseline.neon

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+parameters:
+	ignoreErrors:
+		-
+			message: "#^Short ternary operator is not allowed\\. Use null coalesce operator if applicable or consider using long ternary\\.$#"
+			count: 1
+			path: src/Bootstrap.php

implementation/05/phpstan.neon

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+includes:
+    - phpstan-baseline.neon
+
+parameters:
+    level: max
+    paths:
+        - src

implementation/05/public/index.php

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+<?php declare(strict_types=1);
+
+require __DIR__ . '/../src/Bootstrap.php';

implementation/05/rector.php

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+<?php declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\LevelSetList;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->paths([__DIR__ . '/src', __DIR__ . '/rector.php', __DIR__ . '/ecs.php']);
+    $rectorConfig->importNames();
+
+    $rectorConfig->sets([LevelSetList::UP_TO_PHP_81]);
+};

implementation/05/src/Bootstrap.php

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+<?php declare(strict_types=1);
+
+namespace Lubian\NoFramework;
+
+use Laminas\Diactoros\Response;
+use Laminas\Diactoros\ServerRequestFactory;
+use Throwable;
+use Whoops\Handler\PrettyPageHandler;
+use Whoops\Run;
+
+use function error_log;
+use function error_reporting;
+use function getenv;
+use function header;
+use function sprintf;
+use function strtolower;
+
+use const E_ALL;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+$environment = getenv('ENVIRONMENT') ?: 'dev';
+
+error_reporting(E_ALL);
+
+$whoops = new Run;
+
+if ($environment === 'dev') {
+    $whoops->pushHandler(new PrettyPageHandler);
+} else {
+    $whoops->pushHandler(function (Throwable $t) {
+        error_log('ERROR: ' . $t->getMessage(), $t->getCode());
+        echo 'Oooopsie';
+    });
+}
+
+$whoops->register();
+
+$request = ServerRequestFactory::fromGlobals();
+$response = new Response;
+$response->getBody()
+    ->write('Hello World! ');
+$response->getBody()
+    ->write('The Uri is: ' . $request->getUri()->getPath());
+
+foreach ($response->getHeaders() as $name => $values) {
+    $first = strtolower($name) !== 'set-cookie';
+    foreach ($values as $value) {
+        $header = sprintf('%s: %s', $name, $value);
+        header($header, $first);
+        $first = false;
+    }
+}
+
+$statusLine = sprintf(
+    'HTTP/%s %s %s',
+    $response->getProtocolVersion(),
+    $response->getStatusCode(),
+    $response->getReasonPhrase()
+);
+header($statusLine, true, $response->getStatusCode());
+
+echo $response->getBody();