Карта знаний PHP — bonsai-2:27b, run-30 · think: medium

{"answer": "no", "explanation": "Double-quoted strings support variable interpolation and escape sequences, while single-quoted strings do not (they only recognize \\' and \\\\)."}

{"answer":"yes","explanation":"The null coalescing operator (??) in PHP 7+ uses isset-like semantics, meaning it suppresses warnings for undefined variables and simply falls back to the right operand if the left one is unset or null."}

{"answer": "ab", "explanation": "In PHP, the echo statement prints multiple expressions separated by commas, so it outputs 'a' followed by 'b' with no space in between."}

{"answer": "no", "explanation": "In PHP, `print` is a language construct that only outputs a value and does not return anything; it cannot be used inside an expression."}

{"answer":"no","explanation":"The Elvis operator (?:) returns its right operand when the left operand is falsy, and returns the left operand when it is truthy."}

{"answer":"yes","explanation":"In PHP, the string concatenation operator (.) has lower precedence than the arithmetic + and - operators, so expressions like 5 + 3 . \"abc\" are evaluated as (5 + 3) . \"abc\"."}

{"answer": "no", "explanation": "In PHP, the ** operator is right-associative, so 2 ** 3 ** 2 evaluates as 2 ** (3 ** 2) = 2 ** 9 = 512, not 64."}

{"answer": "sum: 5", "explanation": "In PHP, the addition operator (+) has higher precedence (13) than the concatenation operator (.)(12), so 2 + 3 is evaluated first to get 5, then concatenated with 'sum: '."}

{"answer": "no", "explanation": "With ===, arrays must have the same key/value pairs in the same order to be considered equal; order matters."}

{"answer": "no", "explanation": "0 == false returns true in PHP, and == is a loose (not strict) comparison operator; strict comparison uses ===."}

{"answer": "no", "explanation": "In PHP 8, comparing a non-numeric string to a number with == always returns false, so \"abc\" == 0 is false."}

{"answer": "yes", "explanation": "In PHP loose comparison (==), null == 0, null == '', and null == false are all true."}

{"answer": 42, "explanation": "PHP casts a string to int by reading the leading numeric portion, so '42abc' becomes 42."}

{"answer": 10, "explanation": "In PHP, the string '5' is treated as a numeric value when used with the + operator, so '5' + 5 evaluates to 10."}

{"answer": "no", "explanation": "In PHP, casting false to a string results in an empty string (\"\"), not \"0\"; it's the null and false values that become \"\", while the integer 0 becomes the string \"0\"."}

{"answer": "yes", "explanation": "Due to IEEE 754 floating-point precision, 0.1 + 0.2 does not exactly equal 0.3 in PHP, so the strict comparison returns false."}

{"answer": "no", "explanation": "strrev() reverses strings byte-by-byte, which breaks multi-byte UTF-8 characters into invalid byte sequences; you need mb_strrev() or mb_string functions for proper UTF-8 handling."}

{"answer": "yes", "explanation": "str_contains checks if the second argument is a substring of the first, and 'world' is indeed contained in 'Hello world'."}

{"answer": "no", "explanation": "str_pad() supports STR_PAD_RIGHT, STR_PAD_LEFT, and STR_PAD_BOTH via its $type parameter, so it is not limited to the right side only."}

{"answer": "no", "explanation": "By default, PHP's trim() strips all whitespace characters (spaces, tabs, newlines, carriage returns), not just spaces."}

{"answer": 6, "explanation": "In UTF-8, 'h','l','l','o' are each 1 byte and 'é' is 2 bytes, totaling 6 bytes."}

{"answer": "def", "explanation": "A negative start of -3 in substr() counts from the end of the string, so it starts at index 3 and returns the last three characters 'def'."}

{"answer": "no", "explanation": "In PHP, strings are value types and ucfirst() returns a new string with the first character uppercased rather than modifying the original in place."}

{"answer": "yes", "explanation": "Heredoc (without quotes) allows variable interpolation like $var, while nowdoc (with single quotes) treats the content as a literal string with no interpolation."}

{"answer": "no", "explanation": "The sort() function sorts by value and re-indexes the array keys (0, 1, 2, ...), so it does NOT preserve the original key-to-value association; asort() or ksort() are used for that purpose."}

{"answer":"yes","explanation":"In PHP, string keys that consist solely of digits (like '5') are automatically converted to integer keys when used as array keys."}

{"answer": "no", "explanation": "In PHP, the in_array() function uses loose comparison (==) by default; strict comparison (===) must be enabled by passing the third parameter $strict as true."}

{"answer": "yes", "explanation": "When no callback is provided, array_filter() keeps only truthy elements, effectively removing all falsy values like 0, 0, '', null, false, and []."}

{"answer": "no", "explanation": "By default, the preserve_keys parameter of array_slice() is false, so it reindexes the array with sequential numeric keys (0, 1, 2, ...)."}

{"answer": "[20, 30]", "explanation": "array_slice starts at offset 1 (value 20) and returns 2 elements: 20 and 30."}

{"answer": 2, "explanation": "The '+' operator merges arrays without overwriting left keys, resulting in ['a' => 1, 'b' => 2], which has 2 elements."}

{"answer": "yes", "explanation": "Prior to PHP 8.1, spreading an array with string keys inside an array literal threw a TypeError; PHP 8.1 removed that restriction."}

{ ⏎   "answer": "no", ⏎   "explanation": "In PHP 8.0+, named arguments can be combined with the spread operator in a single function call, as long as the ordering rules (no positional args after named args, unless provided by the spread) are respected." ⏎ }

{"answer": "no", "explanation": "In PHP, closures do not automatically capture outer-scope variables; you must explicitly import them using the `use` keyword."}

{"answer": 3, "explanation": "func_num_args() returns the number of arguments actually passed to the function, which is 3 in this case, regardless of how many parameters are declared in the function signature."}

{"answer": "no", "explanation": "In PHP, the body of an arrow function (fn) must consist of a single expression and cannot use curly braces or multiple expressions."}

{ ⏎   "answer": "no", ⏎   "explanation": "PHP arrow functions (fn) capture outer variables by value at creation time, not by reference or lazily." ⏎ }

{"answer": "yes", "explanation": "Static closures in PHP do not implicitly capture $this; it is not available inside a static function closure."}

{"answer": 5, "explanation": "PHP closures capture variables by value by default, so the closure retains the value of $x (5) at the time it was defined, regardless of later reassignment to 7."}

{"answer": "yes", "explanation": "In weak typing mode, PHP's type juggling allows implicit conversion of the numeric string \"5\" to the integer 5 when passed to an int parameter."}

{"answer": "yes", "explanation": "PHP 8.0 introduced constructor property promotion, which allows you to declare, type, and assign properties directly in the constructor parameter list using visibility modifiers like private."}

{"answer": "final", "explanation": "The 'final' keyword in PHP prevents a method from being overridden by child classes."}

{"answer": "yes", "explanation": "In PHP, the final keyword prevents a method from being overridden in any derived class, which is the defining behavior of a final method."}

{"answer": "no", "explanation": "Private properties in PHP are only accessible within the class where they are declared, not in subclasses."}

{"answer": "AnonymousClass", "explanation": "In PHP, get_class() on an instance of an anonymous class (created with new class {}) returns the string 'AnonymousClass'."}

{"answer": "yes", "explanation": "Private methods are completely hidden from child classes and do not form part of the inheritance contract, so a child class can declare a same-named method with any visibility without any override constraints."}

{"answer": "no", "explanation": "The __get() magic method is invoked for non-existent or inaccessible properties (e.g., private or protected properties accessed from outside the class), not only for non-existent ones."}

{"answer": "Error", "explanation": "In PHP 8.1+, reassigning a readonly property throws a TypeError, which is a subclass of Error (not Exception)."}

{"answer": "yes", "explanation": "In PHP, interfaces can declare constants (which must be public and assigned a value), in addition to abstract method declarations."}

{"answer": "instanceof", "explanation": "The instanceof operator in PHP checks whether a given object is an instance of a specific class or interface."}

{"answer": "yes", "explanation": "Since PHP 8.0, interfaces can declare static abstract methods (e.g., public static abstract function foo(): void;)."}

{"answer": "no", "explanation": "The instanceof operator checks both class inheritance and interface implementation."}

{"answer": "no", "explanation": "In PHP, interface methods can only declare signatures; they cannot have a default method body, unlike trait methods which can include an implementation."}

{"answer": "yes", "explanation": "In PHP, abstract methods can have either public or protected visibility, making protected visibility perfectly valid for an abstract method in an abstract class."}

{"answer": 3, "explanation": "The cases() method returns an array containing all enum cases, and there are three cases: A, B, and C."}

{"answer": "yes", "explanation": "PHP traits support the `const` keyword (since PHP 5.4) to declare constants."}

{"answer": "yes", "explanation": "In PHP, Throwable is an abstract class that serves as the parent class for both Error and Exception, making it their common ancestor."}

{"answer": "no", "explanation": "TypeError extends Error, not Exception; both Error and Exception are siblings extending Throwable, so catch (Exception $e) will not catch a TypeError."}

{"answer": "no", "explanation": "The @ operator only suppresses PHP errors, warnings, and notices; it does not suppress exceptions thrown with the `throw` keyword."}

{"answer": "DivisionByZeroError", "explanation": "In PHP 8+, intdiv(5, 0) throws a DivisionByZeroError, which is a subclass of ArithmeticError."}

{"answer":"no","explanation":"The finally block always executes after the try block (whether an exception was caught, uncaught, or no exception occurred at all); it is not limited to cases where a catch block handled the exception."}

{"answer": "yes", "explanation": "By the time the finally block executes, the try block has already completed; an exception thrown there does not alter what the try block produced or whether it threw, it merely propagates as a new exception outward."}

{"answer": "yes", "explanation": "In PHP, casting any object to bool always yields true, since objects are inherently truthy."}

{"answer": "yes", "explanation": "register_shutdown_function() callbacks are executed during the shutdown phase, which is triggered by exit(), die(), or normal script termination."}

{"answer": "no", "explanation": "The use statement merely creates a local alias for a fully qualified class name and does not trigger any file loading; the class file is loaded only when the class is actually instantiated or referenced."}

{"answer": "function", "explanation": "In PHP, the `use function` statement is used to import a function from a namespace, while `use const` is used to import a constant."}

{"answer": "src/Controller/Api/UserController.php", "explanation": "PSR-4 maps the namespace prefix 'App\\' to 'src/', and each remaining namespace segment becomes a directory, so App\\Controller\\Api\\UserController becomes src/Controller/Api/UserController.php."}

{"answer": "yes", "explanation": "Composer's generated vendor/autoload.php calls spl_autoload_register() to register its autoloader callback, which resolves class names to files based on PSR-4/PSR-0 mappings and classmap."}

{"answer": "yes", "explanation": "The magic constant __NAMESPACE__ (introduced in PHP 5.3) holds the name of the namespace in which the class, interface, or enum is defined, or an empty string if in the global namespace."}

{ ⏎   "answer": "no", ⏎   "explanation": "An unqualified class name is first resolved in the current namespace context, and only falls back to the global root if the class is not found in the current namespace." ⏎ }

{"answer": "yes", "explanation": "Under the PSR-4 rule 'App\\ → src/', the namespace App\\Model\\User maps by stripping the 'App\\' prefix, leaving 'Model\\User', which converts to the path src/Model/User.php."}

{"answer": "no", "explanation": "In PHP, a use statement must be placed at the outermost level of a file or namespace, or inside a class/interface/enum — it cannot be placed inside a function body."}

{"answer": "yes", "explanation": "In PHP, arrays are copied by value when assigned to another variable (e.g., `$b = $a`), not passed by reference; you must use `&` to pass by reference."}

{"answer": 2, "explanation": "In PHP, arrays are assigned by value, so $b = $a creates a copy; modifying $b does not affect $a, which still contains only 2 elements."}

{"answer": "yes", "explanation": "In PHP, a global variable declared outside a function must be explicitly accessed inside the function using the `global` keyword, the `$GLOBALS` superglobal array, or by passing it as a parameter; it is not automatically available in the function's local scope."}

{"answer": "no", "explanation": "$GLOBALS is a direct reference to the global scope, so unset($GLOBALS['x']) removes the variable from the global scope entirely, not just for the current function."}

{"answer": "6", "explanation": "The function modifies $n by reference, so after inc($n) the value is incremented from 5 to 6."}

{"answer": "no", "explanation": "In PHP, foreach by value iterates over a snapshot of the array's elements as they existed when the loop began, so modifications to the array inside the loop (adding/removing elements, changing values) are not reflected in the current pass of iteration."}

{"answer": "no", "explanation": "A static property belongs to the class itself, not to each instance; changes to it are visible in all instances of that class."}

{"answer": "no", "explanation": "In PHP, a boolean key like `true` is coerced to the integer `1`, so it is not stored as a boolean but as an integer."}

{"answer": "yes", "explanation": "In PHP, a `return` statement with a value inside a generator function stops the generator, and the returned value can be retrieved via the `Generator::getReturn()` method."}

{"answer": "yes", "explanation": "In PHP, generators implement the Iterator interface, and calling rewind() resets a fully consumed generator to its starting state so it can be iterated over again."}

{"answer":"yes","explanation":"The `yield from` construct in PHP delegates to another generator or iterable, yielding its values as part of the current generator's output."}

{"answer": "Generator", "explanation": "A function containing 'yield' is a generator function; calling g() returns a Generator object, and get_class() on that object returns the string 'Generator'."}

{"answer": 3, "explanation": "The generator yields 1, 2, and 3, which iterator_to_array() converts to a three-element array, so count() returns 3."}

{"answer": "no", "explanation": "SplStack implements a LIFO (Last-In, First-Out) stack, not a FIFO queue; FIFO queues in PHP are implemented by SplQueue."}

{"answer": "yes", "explanation": "ArrayIterator is a PHP class that implements the Iterator interface, allowing it to wrap an array and traverse its elements via the Iterator methods."}

{"answer": "no", "explanation": "ArrayObject implements the Iterator (and Traversable) interfaces, so it can be directly traversed with foreach."}

{"answer":"yes","explanation":"password_hash() automatically generates and embeds the salt; its function signature has no salt parameter, so you never pass one separately."}

{"answer": "no", "explanation": "In PHP 8, PASSWORD_DEFAULT uses the bcrypt algorithm, not MD5; MD5 is a general-purpose hashing algorithm and is not used as the default password hashing function."}

{"answer": "yes", "explanation": "password_verify() compares the password against the generated hash and returns true since 'secret' matches its own hash."}

{"answer": "no", "explanation": "strip_tags() removes HTML tags to protect against XSS (Cross-Site Scripting), not SQL injection; SQL injection is prevented using prepared statements."}

{"answer":"yes","explanation":"session_regenerate_id() generates a new session ID (and optionally destroys the old one), which is the standard defense against session fixation attacks by invalidating any previously set session identifier at login time."}

{"answer": "php_sapi_name", "explanation": "php_sapi_name() returns the name of the SAPI (Server API) in use, such as 'cli' for command line or 'apache2handler' for Apache."}

{"answer": "yes", "explanation": "session_destroy() removes the session data stored on the server, but the session ID cookie (PHPSESSID) remains in the browser's cookie jar unless explicitly deleted via setcookie()."}

{"answer": "no", "explanation": "In PHP, the $_SESSION superglobal is only populated after calling session_start(), which initializes the session and loads the session data from storage."}

{"answer": "never", "explanation": "PHP does not have an array_find() function; the closest equivalent is array_search()."}

{"answer": "yes", "explanation": "PHP 8.4 introduced property hooks, allowing you to define get/set logic inline in a property declaration (e.g., `public float $height; public function get&set(float $v): float { ... }`)."}

{"answer": "yes", "explanation": "PHP 8.4 introduced asymmetric visibility modifiers for properties, allowing a property like `public private(set) string $name` to be publicly readable but privately writable."}

{"answer": "8.4", "explanation": "The #[\\NoDiscard] attribute was introduced in PHP 8.4 to allow marking function return values that must not be discarded."}

{"answer": "It does not exist", "explanation": "PHP has never introduced a pipe operator |>; that operator is found in languages like F# or Elixir, not PHP."}

{"answer": "no", "explanation": "The clone($obj, ['x' => 1]) syntax never appeared in any PHP version; PHP's clone keyword only accepts a single object operand with no second argument for property overrides."}

{"answer": "4.0", "explanation": "array_first() and array_last() were introduced in PHP 4.0 and later removed in PHP 5.0."}

{"answer": "8.5", "explanation": "RFC Partial Function Application v2 was adopted for PHP 8.5."}

{"answer": "8.0", "explanation": "The clamp() function, introduced via the clamp_v2 RFC, was implemented in PHP 8.0."}

{"answer": "no", "explanation": "There is no 'RFC Context Managers v2' in the PHP RFC process; this appears to be a fabricated claim."}

{"answer": "no", "explanation": "There is no known PHP RFC titled 'RFC Bound-Erased Generic Types (generics)' that was declined in 2026; this appears to be a fabricated claim."}

{"answer": "no", "explanation": "As of my knowledge, PHP still shipped with ZTS (Zend Thread Safety) as an optional compile-time flag rather than the default, and no RFC making multithreaded/ZTS builds the default had been accepted."}

{"answer": "yes", "explanation": "PHP does not have true parameterized types (generics) as of PHP 8.5; its type system includes primitives, union/intersection types, and array/object type declarations but no generic type construction syntax."}

{"answer": "no", "explanation": "Based on PHP's annual November release cycle (8.2 in Nov 2023, 8.3 in Nov 2024, 8.4 in Nov 2025), the latest stable version as of 2026-11-07 would be PHP 8.4, not 8.5, since 8.5 would be the November 2026 release and 8.6 would not be due until November 2027."}

{"answer": "yes", "explanation": "PHP 5.6 was the last 5.x major release, and the next major release was PHP 7.0; PHP 6 was planned but never released."}

{"answer":"no","explanation":"The RFC proposing a #[\\Deprecated] attribute to the PHP core (RFC 2583) was rejected by the core team, who felt the existing deprecation mechanism (trigger_deprecation / E_DEPRECATED) was sufficient."}

{"answer": "yes", "explanation": "In clean and onion architecture, the dependency rule dictates that all dependencies point inward toward the core, meaning inner layers have no knowledge of outer layers."}

{"answer": "yes", "explanation": "In a well-structured architecture (DDD, Clean Architecture), domain entities must be framework-agnostic, depending only on the language and standard library, not on Doctrine or Symfony."}

{"answer":"no","explanation":"Controllers and Twig templates belong to the presentation (interface) layer, not the business-logic layer; they sit between the HTTP request and the use cases/domain models."}

{"answer": "Business Logic", "explanation": "In the onion architecture, the very center holds the core business rules and logic, with all other layers (application logic, infrastructure, presentation) nested around it."}

{"answer": "yes", "explanation": "Static analysis tools like deptrac perform dependency checks and will fail the build when a forbidden cross-layer call is detected, making layer boundary violations automatically catchable."}

{"answer":"no","explanation":"A use case should be decoupled from framework-specific objects like HTTP requests or EntityManagers; coupling to them makes the use case harder to test, reuse, and maintain, and violates dependency inversion."}

{"answer": "Repository", "explanation": "The Repository pattern provides a collection of aggregates/entities in memory while abstracting the underlying storage mechanism (e.g., database) behind an interface."}

{"answer": "yes", "explanation": "In clean architecture, the database is an outer-layer detail; the domain and use cases depend only on abstractions (e.g., repository interfaces), so swapping the concrete database implementation doesn't affect them."}

{"answer": "no", "explanation": "In DDD, an aggregate is a cluster of entities and value objects within the domain bounded by consistency rules, which is a conceptual domain model, not a synonym for a database table."}

{"answer": "yes", "explanation": "In Domain-Driven Design, a Value Object is defined by two core principles: immutability (its state cannot change after creation) and value equality (it is compared based on its field values rather than object identity)."}

{"answer": "Aggregate Root", "explanation": "In Domain-Driven Design, the Aggregate Root is the single external entry point of an aggregate through which all modifications must flow."}

{"answer": "yes", "explanation": "In DDD, a repository is tied to an aggregate root because the aggregate is the unit of consistency and persistence."}

{"answer": "yes", "explanation": "In Domain-Driven Design, the Ubiquitous Language is the shared, common vocabulary used by both domain experts and developers to discuss the domain, and it should be reflected in the model and code."}

{"answer": "universe", "explanation": "In model theory, the universe (or domain) is the boundary within which a model consistently interprets its language, and outside of it the same symbols would require different interpretations."}

{"answer": "no", "explanation": "DDD recommends a rich domain model with behavior encapsulated in domain objects; the anemic model (getters/setters only with logic in services) is considered an anti-pattern in DDD."}

{"answer": "yes", "explanation": "In Domain-Driven Design, each bounded context has its own model, so the same business concept can be represented as a different class with different attributes and behaviors in different contexts."}

{"answer": "yes", "explanation": "Symfony's DI container resolves service definitions on first access (via get() or autowiring) unless explicitly forced with build(), making lazy creation the default behavior."}

{"answer": "routes", "explanation": "In Symfony, running 'php bin/console routes' displays all registered routes in your application."}

{"answer": "no", "explanation": "Symfony autowiring automatically discovers and wires services based on conventions, annotations, or attributes, eliminating the need to manually declare every service in services.yaml."}

{"answer":"yes","explanation":"Twig compiles templates into PHP Template classes and caches the generated code so it is only compiled once and reused on subsequent requests."}

{"answer": "yes", "explanation": "In Symfony dev, the container is cached and only recompiled when Symfony detects changes to tracked files (e.g., via a checksum), avoiding a full rebuild on every request."}

{"answer": "APP_ENV", "explanation": "In Symfony, the APP_ENV environment variable (defaulting to 'prod') selects the active environment such as dev, prod, or test."}

{"answer": "no", "explanation": "Symfony's router invokes controller methods via reflection from outside the class, so private methods cannot be accessed and would cause an error."}

{"answer": "no", "explanation": "In PHP event systems (e.g., Symfony), subscribers and listeners are dispatched at the same level based on priority values, not by an inherent interface hierarchy that grants subscribers priority."}

{"answer": "yes", "explanation": "The Guard system was removed in Symfony 5.0, so by Symfony 6.0+ authentication is indeed built on AuthenticatorInterface classes."}

{"answer":"Role","explanation":"The #[Role] attribute from Symfony\\Component\\Security\\Attribute\\Role restricts controller access to specific roles and returns a 403 Forbidden when the user lacks the required role."}

{"answer": "yes", "explanation": "Voters in Symfony's security system are indeed the mechanism used to check access to a specific object via isGranted('EDIT', $post)."}

{"answer": "yes", "explanation": "In Symfony 7.0, Doctrine ORM annotations (deprecated since Symfony 6.0) were removed, and PHP attributes such as #[Assert\\NotBlank] and #[Column] are the only supported approach for both validation constraints and entity mapping."}

{"answer": "yes", "explanation": "Symfony automatically adds a CSRF token to forms and validates it on submission by default."}

{"answer": "yes", "explanation": "Symfony's form validation is always executed server-side upon form submission, independent of any client-side HTML5 validation checks."}

{"answer":"make:form","explanation":"The Symfony Maker Bundle command 'make:form' generates a Symfony form type class (FormType)."}

{"answer": "no", "explanation": "Symfony does not store the user's password in the session in plain text; passwords are hashed (e.g., bcrypt) and stored in the database, while the session only holds user identity information like roles and user ID."}

{"answer": "yes", "explanation": "Since Symfony 4.0, bundle configurations are placed in config/packages/ with one YAML file per bundle or topic (e.g., config/packages/doctrine.yaml, config/packages/security.yaml)."}

{"answer": "yes", "explanation": "Committing a .env file with safe development defaults while keeping real secrets in an untracked .env.local is a widely recommended practice."}

{"answer": "debug:container", "explanation": "The Symfony command 'debug:container' lists all registered services in the container along with their aliases, types, and other metadata."}

{"answer": "yes", "explanation": "Symfony's container exposes a public setParameter() method that can be called at runtime from any context, including controllers, allowing you to overwrite container parameters dynamically."}

{"answer": "no", "explanation": "By default, Symfony services are private and cannot be accessed directly from the container unless explicitly marked as public."}

{"answer": "no", "explanation": "Configuration is optional; many bundles work without any config file in config/packages as long as they are registered in the bundle list."}

{"answer": "yes", "explanation": "Symfony uses the %env(VAR)% placeholder syntax in services.yaml to inject environment variable values at runtime."}

{"answer": "APP_DEBUG", "explanation": "In modern Symfony, the environment variable APP_DEBUG (set to 1) enables debug mode, which activates the web profiler and Twig debugging features."}

{"answer": "no", "explanation": "In Symfony Messenger, multiple handlers can be registered to process the same message; each handler receives the message independently."}

{"answer":"no","explanation":"The sync transport processes the message immediately in the current process; it does not queue it for a separate worker."}

{"answer": "messenger:consume", "explanation": "The Symfony Messenger command to start the worker that processes queue messages is messenger:consume (invoked as bin/console messenger:consume)."}

{"answer": "yes", "explanation": "In Symfony Messenger, the retry_strategy is a per-transport option, allowing each transport to have its own retry configuration (e.g., max_attempts, backoff)."}

{"answer": "yes", "explanation": "By default, Symfony Messenger uses a JSON serializer to encode and decode message payloads."}

{"answer": "yes", "explanation": "Symfony Scheduler is a component designed to schedule messages for dispatch through Symfony's Messenger transport at defined intervals."}

{"answer": "database", "explanation": "Symfony's 'database' transport (Symfony\\Component\\Messenger\\Transport\\Database\\DatabaseTransport) stores messages in database tables using Doctrine ORM."}

{"answer": "yes", "explanation": "Symfony Messenger's Pipeline class allows you to add custom middleware and insert them at any position relative to the built-in middleware (e.g., via the Pipeline::add() method or transport configuration)."}

{"answer": "no", "explanation": "While major Symfony releases are roughly every two years, minor (point) releases have not consistently followed a May/November six-month cadence; Symfony has shifted to more frequent (often monthly) point releases for supported versions, particularly in recent years."}

{"answer": "8.2", "explanation": "Based on the pattern of Symfony's PHP requirements (Symfony 7 requires PHP 8.1+), Symfony 8 is expected to require a minimum of PHP 8.2."}

{"answer": "no", "explanation": "Symfony 7.0 removed docblock annotations (e.g., @Route, @Validate) entirely, leaving only the attribute-based equivalents (#[Route], #[Validate])."}

{"answer": "no", "explanation": "Symfony AssetMapper does require Node.js (it uses esbuild and terser via Node for bundling and minification), so the claim that it works 'without node' is false."}

{"answer": "yes", "explanation": "Symfony does not have a separate LTS track; all minor releases in a major version (including 6.4) are regular releases supported until the next major version's EOL, with no extended long-term support designation."}

{"answer":"no","explanation":"Major Symfony releases do remove the deprecations that were introduced in the previous major branch."}

{"answer":"yes","explanation":"Symfony provides an official Upgrade Guide for every major release, detailing breaking changes and deprecations, typically found in their online documentation."}

{"answer": "symfony/asset-mapper", "explanation": "The symfony/asset-mapper component (introduced in Symfony 6.3) provides asset fingerprinting/hashing and importmap generation without requiring Node.js or webpack."}

{"answer":"no","explanation":"Symfony follows a 6-month release cycle (November and May); 8.0 landed in November 2025 and 8.1 in May 2026, so 8.2 is scheduled for late November 2026, after November 7."}

{"answer": "yes", "explanation": "Symfony releases follow a six-month cycle (November and May), so after 8.0 in November 2025 and 8.1 in May 2026, 8.2 is correctly scheduled for November 2026."}

{"answer": "8.2", "explanation": "Symfony versions increment the minor number, so the version after 8.1 is 8.2."}

{"answer": "false", "explanation": "While major Symfony versions introduce breaking changes that require migration, they do not require applications to be completely rewritten; upgrading involves incremental changes and deprecation fixes rather than a full rewrite."}

{"answer":"yes","explanation":"PHP maintains backward compatibility between successive minor versions within the same major number (8.x), so upgrading from 8.1 to 8.2 does not require code changes."}

{"answer":"8.4","explanation":"Symfony follows a pattern of releasing five minor versions per major branch (e.g., 8.0 through 8.4), so 8.4 is the last 8.x version before 9.0."}

{"answer": "no", "explanation": "Symfony 8.2 would not require PHP 8.5; Symfony sets a single minimum PHP version for a major series and does not raise it within that series, and PHP 8.5 was not the expected minimum for any Symfony 8.x release."}

{"answer": "yes", "explanation": "Symfony's deprecation policy guarantees that deprecations introduced in a given release cycle (here, 8.x) are only removed in the next major release (9.0)."}

{"answer": "no", "explanation": "Twig's {{ }} syntax only allows Twig expressions (variables, filters, functions, simple arithmetic) and does not permit calling arbitrary PHP code for security reasons."}

{"answer": "yes", "explanation": "Twig enables HTML auto-escaping by default for all printed variables, so `{{ var }}` is escaped against HTML injection out of the box."}

{"answer": "yes", "explanation": "The Twig |e filter (alias for |escape) escapes a string, and its default context is 'html', which escapes special characters like <, >, &, \", and ' into HTML entities for safe output in an HTML context."}

{"answer": "intl:locale", "explanation": "The intl:locale filter in twig/intl-extra formats a number according to a specified locale, e.g., {{ 1234.56|intl:locale('en_US') }}."}

{"answer": "yes", "explanation": "The |raw filter in Twig tells the template engine to skip auto-escaping, outputting the value as raw HTML."}

{"answer":"yes","explanation":"In Twig, {{ }} is the expression delimiter for outputting values, and {% %} is the tag delimiter for logic blocks like if, for, and set."}

{"answer": "no", "explanation": "In Twig you can declare variables inside a template using the `{% set %}` tag (e.g., `{% set myVar = 'hello' %}`), so values are not solely provided by the controller."}

{"answer": "dump", "explanation": "The Twig `dump()` function outputs a debug structure of the given variable, similar to PHP's `var_export()` or `print_r()`.

{"answer": "yes", "explanation": "Bootstrap is a front-end library providing CSS classes and JavaScript plugins for UI components, not a framework for building single-page applications like React or Angular."}

{"answer": "container", "explanation": "The .container class in Bootstrap provides a responsive container with a fixed max-width at each breakpoint (e.g., 576px, 768px, 992px, 1200px)."}

{"answer": "no", "explanation": "The Bootstrap grid uses 12 columns (not 16), and modern versions (Bootstrap 4/5) are built on Flexbox/CSS Grid rather than floats."}

{"answer": "yes", "explanation": "Bootstrap 5 defines five breakpoints: sm, md, lg, xl, and xxl."}

{"answer": "yes", "explanation": "In Tailwind CSS, spacing utilities like .mt-3 and .px-2 derive their values from the $spacer base unit, where the numeric suffix indicates the multiplier (e.g., .mt-3 = 3 × $spacer)."}

{"answer": "data-bs-toggle", "explanation": "The data-bs-toggle attribute in Bootstrap 5 enables interactive components such as dropdowns, modals, and tooltips on an element."}

{"answer": "yes", "explanation": "Bootstrap 5 removed its dependency on jQuery and implements all its components (modals, dropdowns, tooltips, etc.) in plain vanilla JavaScript."}

{ ⏎   "answer": "no", ⏎   "explanation": "In Bootstrap 5.2+, dark mode is enabled by adding the data-bs-theme=\"dark\" attribute to the root <html> element, not a .dark class." ⏎ }

{"answer":"no","explanation":"Doctrine ORM does not create tables automatically at runtime; you must explicitly run schema commands (e.g., `doctrine orm:install-schema` or database migrations) to create the tables."}

{"answer": "persist()", "explanation": "The EntityManager.persist() method registers a new (unsaved) entity as managed, deferring the actual INSERT SQL statement until the EntityManager is flushed."}

{"answer":"yes","explanation":"EntityManager::merge() has been a core method in Doctrine ORM 3 that returns a managed instance of the passed object, making it tracked by the Unit of Work."}

{"answer": "yes", "explanation": "DQL (Domain Query Language) is designed to query object-oriented entities and their mapped fields/properties rather than raw database tables and columns, abstracting the persistence layer away from the query."}

{"answer": "null", "explanation": "In Doctrine ORM (and similar PHP persistence frameworks), the repository's find() method returns null when no entity matching the given ID exists in the database."}

{"answer": "no", "explanation": "DoctrineBundle in Symfony does not automatically call flush() at the end of every request; you must explicitly call $em->flush() when you are done modifying entities."}

{"answer":"yes","explanation":"Once an entity is managed by the Unit of Work, any property modifications are tracked as a change set and are committed on flush() without needing a separate persist() call."}

{"answer":"no","explanation":"Eloquent Collection's remove() simply removes matching items from the in-memory collection and does not execute any SQL DELETE or interact with the database."}

{"answer": "no", "explanation": "With MVCC, PostgreSQL readers and writers generally do NOT block each other; each reader sees a consistent snapshot while writers create new row versions."}

{"answer": "EXPLAIN", "explanation": "The EXPLAIN SQL command displays how a query will be executed (its execution plan) without actually running the query."}

{"answer": "no", "explanation": "SERIAL is a PostgreSQL-specific shorthand that creates a separate sequence object, while GENERATED ... AS IDENTITY is a SQL standard feature with different behaviors (e.g., GENERATED ALWAYS AS IDENTITY disallows explicit VALUES insertion)."}

{"answer":"no","explanation":"In PostgreSQL, by default, a UNIQUE constraint allows multiple rows with NULL values in the constrained column, since NULL is not considered equal to any other value (including another NULL)."}

{"answer": "string_agg", "explanation": "string_agg is the PostgreSQL aggregate function that concatenates strings with a specified separator/delimiter."}

{"answer": "no", "explanation": "Plain VACUUM only reclaims dead tuples' space for reuse within the table's existing pages; it does not shrink the table file or return space to the OS. Only VACUUM FULL (which rewrites the entire table) returns the freed space to the operating system."}

{"answer": "PARTITION BY", "explanation": "The PARTITION BY clause in a SQL window function definition divides the result set into groups, and the window function is computed independently over each group."}

{"answer": "no", "explanation": "READ COMMITTED prevents dirty reads but does not protect against non-repeatable reads; that protection is provided by REPEATABLE READ or higher."}

{"answer": "yes", "explanation": "PostgreSQL runs in autocommit mode by default, so each individual SQL statement is automatically committed within its own transaction."}

{"answer": "COMMIT", "explanation": "The COMMIT command finalizes a transaction, making all changes permanent and releasing locks."}

{"answer": "yes", "explanation": "Indexes help the database locate rows quickly, so UPDATE and DELETE statements with a WHERE clause on an indexed column can use the index to find matching rows instead of scanning the entire table."}

{"answer": "yes", "explanation": "SAVEPOINT allows you to mark a point within a transaction and later use ROLLBACK TO <savepoint> to undo only the work done since that point, while keeping the earlier transactional work intact."}

{"answer": "no", "explanation": "EXPLAIN ANALYZE actually executes the query and reports real execution statistics, whereas plain EXPLAIN shows the estimated query plan without executing."}

{"answer": "pgvector", "explanation": "pgvector is a PostgreSQL extension that adds vector types and indexes to enable embedding search and vector similarity queries."}

{"answer": "yes", "explanation": "A partial index in PostgreSQL stores only the rows that satisfy the WHERE condition, making it a compact index covering a filtered subset of the table."}

{"answer": "no", "explanation": "PostgreSQL implements SERIALIZABLE using Serializable Snapshot Isolation (SSI), which detects and prevents serialization anomalies at commit time rather than by locking the rows a transaction reads."}

{"answer": "yes", "explanation": "HTTP status 201, or 'Created', indicates that the request succeeded and a new resource has been created as a result."}

{"answer": "204", "explanation": "HTTP 204 No Content indicates a successful request where the server intentionally returns an empty response body, commonly used after DELETE operations."}

{"answer": "yes", "explanation": "Per RFC 7231 Section 5.2.3, DELETE is explicitly defined as idempotent because a second DELETE on an already-deleted resource is a no-op."}

{"answer": "no", "explanation": "The Access-Control-Allow-Origin header is sent by the server in the response, not by the client."}

{"answer": "yes", "explanation": "HTTP 429 Too Many Requests is returned when a client has exceeded the allowed rate limit and must throttle its requests."}

{"answer": "no", "explanation": "It is the opposite: 4xx codes indicate client errors and 5xx codes indicate server errors."}

{"answer": "Content-Type", "explanation": "The Content-Type HTTP header specifies the MIME type of the payload in the request or response body."}

{"answer": "yes", "explanation": "Per RFC 5789, the PATCH method is explicitly not required to be idempotent, whereas PUT is required to be idempotent."}

{"answer": "no", "explanation": "A plain == comparison is vulnerable to timing attacks; you should use hash_equals() or password_verify() for constant-time hash comparison."}

{"answer": "yes", "explanation": "A CSRF token is generated and issued by the server, bound to the user's session, and verified server-side on state-changing requests like POST, PUT, and DELETE to ensure the request is legitimate and not cross-site forged."}

{"answer": "Content-Security-Policy", "explanation": "The Content-Security-Policy HTTP header is used to define and enforce content security policies for a web page."}

{"answer": "no", "explanation": "OAuth 2.0 is an authorization framework, not an authentication protocol, and the access token grants permission to access a resource rather than identifying who the user is (that is the role of an ID token in OpenID Connect)."}

{"answer": "no", "explanation": "XSS is prevented by output encoding (escaping) when rendering data to the browser, not by validating input before storing it in the database; data can be modified after storage and output encoding is the reliable defense."}

{"answer": "code", "explanation": "In the OAuth 2.0 authorization code flow, the 'code' parameter (authorization code) is returned to the redirect_uri and then exchanged at the token endpoint for an access token."}

{"answer": "yes", "explanation": "In OAuth 2.0, a refresh token has a longer expiration than an access token and can be used to exchange for a new access token without requiring additional user authentication."}

{"answer": "no", "explanation": "A password salt does not need to be kept secret; in modern practice it is stored alongside the hash (e.g., embedded in bcrypt strings) because its purpose is to prevent rainbow tables and ensure identical passwords produce different hashes, not to act as a secret key."}

{"answer": "no", "explanation": "PHPUnit only executes test methods in classes that extend PHPUnit\\Framework\\TestCase; without that inheritance, methods are not recognized as tests."}

{"answer": "no", "explanation": "setUp() runs before each individual test method, not once before all tests; setUpBeforeClass() is what runs once before all tests of the class."}

{"answer": "no", "explanation": "A data provider allows a test to run with multiple sets of arguments, not exactly one."}

{"answer": "expectException", "explanation": "expectException() is the PHPUnit method that declares an expectation that an exception of a given class is thrown during test execution."}

{"answer": "no", "explanation": "The statement has the two reversed: a mock verifies which methods were called, while a stub only returns preset data without verifying interactions."}

{"answer": "yes", "explanation": "In PHPUnit 10+, the #[DataProvider] attribute is the recommended approach, and the legacy @dataProvider annotation was deprecated in PHPUnit 9 and removed in PHPUnit 10."}

{"answer": "yes", "explanation": "PHPUnit enforces test independence: each test must be self-contained and cannot rely on the data or results of another test to execute correctly."}

{"answer": "--randomize-tests", "explanation": "The --randomize-tests option shuffles the execution order of tests in PHPUnit."}

{"answer": "3-4", "explanation": "intdiv(7, 2) returns 3 and intdiv(-7, 2) returns -4 (rounding toward negative infinity), and the dot operator concatenates them into the string '3-4'."}

{"answer": -9, "explanation": "In PHP, the ** operator has higher precedence than the unary minus, so -3 ** 2 is parsed as -(3 ** 2) = -9."}

{"answer": "true", "explanation": "Both '1e1' and '10' are numeric strings, so PHP converts them to numbers (10.0 and 10.0), making the loose equality true, so the ternary outputs the string 'true'."}

{"answer": "other", "explanation": "In PHP 8+, the switch uses loose comparison; 'a' == 0 is false (the integer 0 is cast to the string \"0\", which does not equal \"a\"), so the default case executes and echoes 'other'."}

```json ⏎ {"answer": "2c", "explanation": "strtr with an array argument picks the longest matching key at each position, so 'ab' (replaced by '2') wins over 'a' (replaced by '1') at the start, leaving 'c' unchanged."} ⏎ ```

{"answer": "[hello]", "explanation": "substr('hello', -10) with a negative start exceeding the string length (5) defaults to position 0, so the entire string 'hello' is returned."}

{"answer": "k,n,m", "explanation": "The + operator merges arrays where $a's values take priority on conflicting keys, resulting in ['k'=>1, 'n'=>2, 'm'=>3], so array_keys gives [k, n, m]."}

{"answer": "yxz", "explanation": "The usort sorts the array by the third element (index 2), giving order [2,'y',1], [1,'x',2], [3,'z',2], then array_column extracts the second elements ('y','x','z') and implode joins them into 'yxz'."}

{"answer": "4", "explanation": "The spread operator unpacks the associative array as named arguments, so $a=5 and $b=1, and the function returns 5-1=4."}

{"answer": "ParseError", "explanation": "The `...` spread operator must be followed by a variable or array (e.g., `$p->g(...$arr)`), so `$p->g(...)` on its own is a syntax/parse error in PHP."}

{"answer": "B", "explanation": "static::class in PHP uses late static binding, returning the actual class from which the method was called, which is B in this case."}

{"answer": 10, "explanation": "The PHP 8.5 property set hook is invoked with $value=5, sets the property to 5*2=10, and echoing the property reads the stored value 10."}

{"answer": "BA", "explanation": "The insteadof clause makes TB::f win for method f(), and the as clause aliases TA::f to g(), so f() returns 'B' and g() returns 'A'."}

{"answer": 0, "explanation": "Static properties declared in a trait are not shared between classes that use the trait; each class gets its own independent instance, so CY::$n remains 0 after CX::$n is set to 1."}

```json ⏎ {"answer": 2, "explanation": "The return statement in the finally block overrides the return value from the try block, so the function returns 2."} ⏎ ```

{"answer": "second", "explanation": "The exception thrown in the finally block replaces the original RuntimeException, so the LogicException('second') propagates and is caught by the outer catch handler."}

{"answer":"App\\Foo|Baz","explanation":"Baz::class resolves to App\\Foo via the use statement, while \\Baz::class resolves to the global-namespace class Baz, producing the string 'App\\\\Foo|Baz'."}

{"answer": "noyes", "explanation": "class_exists('Foo') looks in the global namespace and finds no class named Foo (only Ns\\Foo exists), returning 'no', while class_exists('Ns\\Foo') finds the namespaced class, returning 'yes'."}

{"answer": "1,2,99", "explanation": "The foreach with reference means $v remains a reference to the last element of $a, so assigning $v = 99 modifies the last element of the array to 99."}

{"answer": 3, "explanation": "The static variable $n is associated with class A (the class where it's defined), so all three calls to inc() — whether through an A or B instance — increment the same shared counter from 0 to 3."}

{"answer": 11, "explanation": "send(10) starts the generator, assigns 10 to $x at the yield, then executes return $x+1 = 11, which getReturn() retrieves."}

{"answer": "1,2,ok", "explanation": "The yield from expression passes through the inner generator's yields (1 and 2), then assigns its return value ('ok') to $r, which is yielded next."}

{"answer": "noyes", "explanation": "The first call returns false because the hash was created with cost 4 and we're checking against cost 4, while the second call returns true because cost 5 differs from the cost 4 used to generate the hash, so the output is 'no' followed by 'yes'."}

{ ⏎   "answer": "strict-in", ⏎   "explanation": "E_ALL is a bitmask that includes E_CORE_ERROR (2048), so (E_ALL & 2048) equals 2048, which is not 0, making the ternary evaluate to 'strict-in'." ⏎ }

{"answer": "missing", "explanation": "The header is stored with the key 'HTTP_X_TOKEN', and Symfony's Headers::get() performs case-insensitive comparison, but 'x-token' !== 'http_x_token', so the lookup returns null, making the ternary evaluate to 'missing'."}

{"answer": "BCA", "explanation": "Symfony's EventDispatcher executes listeners in descending order of priority (10, 5, 0), so the listeners append 'B', 'C', and 'A' in that order."}

{"answer": "same", "explanation": "Doctrine ORM maintains an identity map per EntityManager, so two calls to find() with the same ID return the same PHP object reference."}

{"answer": 0, "explanation": "Persisting and then removing an entity before flush means Doctrine never issues an INSERT, so the users table remains empty and the count is 0."}

{"answer": 1, "explanation": "COUNT(x) counts only non-null values, so it returns 1 since one of the two rows has a NULL value in column x."}

{"answer": "10,30,60", "explanation": "The window function sum(x) OVER (ORDER BY id) produces running sums 10, 30, 60, which string_agg then concatenates with commas."}

{"answer": "M1M2", "explanation": "The middleware stack processes middlewares in order: M1 is the outermost, echoes 'M1', then delegates to M2 which echoes 'M2', then the default handler processes the message."}

```json ⏎ {"answer": 11, "explanation": "Both handler closures registered for Ping::class are invoked sequentially by HandleMessageMiddleware, incrementing $n by 1 and then by 10, resulting in 11."} ⏎ ```

{"answer": 1, "explanation": "The first INSERT adds one row with a=1; the second INSERT is ignored due to the unique index conflict with ON CONFLICT DO NOTHING, so count(*) returns 1."}

```json ⏎ {"answer": 2, "explanation": "Because the UNIQUE constraint is DEFERRABLE INITIALLY DEFERRED, both duplicate inserts succeed within the transaction, and SELECT count(*) returns 2 (the constraint would only be checked at COMMIT)."} ⏎ ```

```json ⏎ {"answer": 6, "explanation": "The --filter regex 'test_sum' partially matches both test_sum (3 data sets) and test_sum_abs (3 data sets), totaling 6 tests; test_other does not match."} ⏎ ```

{"answer": "2, 1", "explanation": "The data provider returns two datasets ([1] and [-1]), so 2 tests run; assertTrue($x > 0) fails only when $x is -1, giving 1 failure."}

{"answer": "POST", "explanation": "The -d flag in curl sends data to the server, which by default triggers a POST request."}

{"answer":"GET","explanation":"The -G flag overrides the default POST behavior of -d, sending the data as query parameters with a GET request."}

{"answer":"invalid_client","explanation":"Per RFC 6749 Section 5.2, when a client_id is not recognized by the authorization server, the token endpoint returns the error value \"invalid_client\"."}

{"answer": "fragment", "explanation": "In the OAuth 2.0 implicit grant (response_type=token), the access_token is appended to the redirect_uri as a query parameter within the fragment portion (after the # symbol)."}

{"answer": 6, "explanation": "In Twig, `false` is considered a falsy value, so the `default(2)` filter replaces it with 2, and 2 * 3 equals 6."}

{"answer": "a3", "explanation": "The expression `'a' ~ 1 + 2` parses as `'a' ~ (1 + 2)` due to operator precedence (addition binds tighter than concatenation), resulting in `'a' ~ 3`, which is the string `'a3'`; no exception is thrown."}

{"answer": 0, "explanation": "The value [''] is an array with one element, so the NotBlank constraint (which checks for an empty array) passes, resulting in zero violations."}

{"answer": "no output", "explanation": "The class Symfony\\Component\\Form\\Forms does not exist, so the line creating the factory throws an uncaught Error outside the try block, preventing any echo from executing."}

{"answer": "same", "explanation": "In a compiled Symfony DI container, services are singletons by default, so both calls to $c->get('a') return the exact same object instance, making spl_object_id() return the same value for both."}

```json ⏎ {"answer": "hi Bob!", "explanation": "The parameter 'message' is '%greeting%!'; during compile(), the %greeting% reference is substituted with 'hi Bob' (itself derived from %name% = 'Bob'), and the trailing '!' is a literal character, yielding 'hi Bob!'."} ⏎ ```

```json ⏎ {"answer": "992px", "explanation": "In Bootstrap 5.3, the .container class sets its max-width to 992px at the 992px (lg) breakpoint via the --bs-container-width custom property."} ⏎ ```

{"answer": "text-danger", "explanation": "In Bootstrap 5.3 CSS output, .text-danger is declared after .text-primary, so with equal specificity the later rule wins, making .text-danger the effective color."}

{"answer": 2, "explanation": "The class is in the Domain layer, which may only depend on Domain; its two dependencies (Application\\PlaceOrder and Infrastructure\\Db) each violate this rule, giving 2 violations."}

{"answer": 3, "explanation": "The class is in the Domain layer which may only depend on Domain, but it imports and injects dependencies from the Application layer (PlaceOrder) and the Infrastructure layer (Db, Logger), resulting in 3 violations."}

{"answer": "10,15", "explanation": "$a has amount 10 and remains unchanged; $c is a new Money object with amount 15, so the echo concatenates \"10,15\"."}

{"answer": 1, "explanation": "The remove method throws an exception before unsetting the item because there is only one item, so the items array still contains one entry and count() returns 1."}

{"answer": "hi", "explanation": "The code instantiates class C and calls its hi() method which returns the string 'hi', which is then echoed."}

{"answer": "yesno", "explanation": "The lazy ghost object is uninitialized before property access (prints 'yes'), then accessing $o->v triggers initialization via the callback (setting v=21), so the second check returns false (prints 'no')."}

{"answer": "no", "explanation": "The Guard component (including AbstractGuardAuthenticator) was removed in Symfony 7.0, so the class does not exist in 8.1."}

{"answer":"nono","explanation":"In Symfony 8.1, both AnnotationClassLoader (removed in 7.0 with annotation support) and AttributeClassLoader (removed in 8.0) no longer exist in \\Symfony\\Component\\Routing\\Loader."}