Карта знаний PHP — bonsai-2:27b, run-17 · think: off

{ ⏎   "answer": "false", ⏎   "explanation": "Single-quoted strings are not processed identically to double-quoted strings because double-quoted strings support variable interpolation and escape sequences, which single-quoted strings do not." ⏎ }

{"answer": "yes", "explanation": "The null coalescing operator (??) returns the right operand if the left is null or unset, and it explicitly avoids raising any warnings for undefined variables or null values."}

{ ⏎   "answer": "ab", ⏎   "explanation": "The comma operator in an echo statement allows multiple string arguments to be printed consecutively." ⏎ }

{"answer": "no", "explanation": "In PHP, the `print` keyword returns the integer 1 and is not a function, so it cannot be used inside expressions (such as inside another function call or as an operand in an expression)."}

{"answer": "no", "explanation": "The Elvis operator returns its left operand when it is truthy (not null), and otherwise returns its right operand."}

{ ⏎   "answer": "yes", ⏎   "expression": "true" ⏎ }

{"answer": "no", "explanation": "In PHP, the exponentiation operator (**), like in most programming languages, is right-associative, so 2 ** 3 ** 2 is evaluated as 2 ** (3 ** 2), which is 2 ** 9, equal to 512."}

{ ⏎   "answer": "sum: 2", ⏎   "explanation": "In PHP, the dot concatenation operator (. ) has higher precedence than the plus operator (+), so the expression is evaluated as ('sum: ' . 2) + 3, which results in the string 'sum: 23' after the integer 3 is concatenated via type juggling, but wait: actually, string + int is not string concatenation; it's addition. Let me re-evaluate." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "Strict comparison (===) for arrays requires both the same number of elements and the same key/value pairs in the same order." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "The == operator performs loose comparison, and in PHP 0 == false evaluates to true because 0 is converted to false." ⏎ }

```json ⏎ {"answer": "no", "explanation": "In PHP 8, loose comparisons between a string and 0 no longer return true; \"abc\" is no longer cast to 0."} ⏎ ```

{"answer": "no", "explanation": "While null loosely equals false, it does not equal the empty string (null == \"\" is false)."}

{"answer": 42, "explanation": "In PHP, casting a string to int parses the leading numeric portion until it encounters a non-numeric character, so '42abc' becomes 42."}

{"answer": 10, "explanation": "The string '5' is automatically coerced to the integer 5, so the addition results in 10."}

{"answer": "yes", "explanation": "In PHP, when the boolean false is explicitly cast to a string, it results in the empty string \"\" (zero-length string), not \"0\"."}

{ ⏎   "answer": "yes", ⏎   "explanation": "In PHP, the expression 0.1 + 0.2 results in the floating-point value 0.30000000000000004, which is not strictly identical (===) to the floating-point constant 0.3." ⏎ }

{"answer": "no", "explanation": "strrev() reverses a byte string, so it corrupts multi-byte UTF-8 sequences; use mb_strrev() for UTF-8 instead."}

{"answer": "yes", "explanation": "The str_contains function checks if the needle 'world' exists in the haystack 'Hello world', which it does."}

{ ⏎   "answer": "no", ⏎   "explanation": "str_pad() can pad the string on either the right or the left side using the $type parameter." ⏎ }

{"answer": "false", "explanation": "By default, trim() strips all whitespace characters, including spaces, tabs, and newlines."}

{"answer": 6, "explanation": "The character 'é' in UTF-8 is encoded as 2 bytes, while the other four ASCII characters each occupy 1 byte, totaling 6 bytes."}

{"answer": "def", "explanation": "substr with a negative start value counts backwards from the end of the string, returning the last 3 characters."}

{"answer": "no", "explanation": "In PHP, strings are values, so functions like ucfirst() return a modified copy rather than modifying the original string in place."}

{"answer": "yes", "explanation": "Heredoc variables are interpolated like double-quoted strings, while nowdoc variables are not interpolated and must start with the dollar sign immediately after the opening marker."}

{ ⏎   "answer": "no", ⏎   "explanation": "The sort() function reindexes the array with integer keys starting from 0, thus destroying the original key-to-value associations." ⏎ }

{"answer": "yes", "explanation": "PHP automatically casts string keys that represent integers into their integer equivalents when stored in arrays."}

{"answer": "no", "explanation": "The in_array() function uses non-strict comparison (==) by default, and a third boolean parameter can be set to true to enable strict comparison."}

{ ⏎   "answer": "yes", ⏎   "explanation": "array_filter() without a callback function removes all elements with a falsy value, such as 0, 0.0, false, empty strings, null, and empty arrays." ⏎ }

{"answer": "yes", "explanation": "By default, array_slice() preserves the keys of the array when slicing it."}

{"answer": [20, 30], "explanation": "array_slice returns a subarray starting at offset 1 with length 2, which yields [20, 30]."}

```json ⏎ {"answer": 2, "explanation": "The '+' operator combines arrays without overwriting existing keys, so key 'a' is kept from the first array and key 'b' is added from the second, resulting in two elements."} ⏎ ```

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "Since PHP 8.1, the spread operator can be used with associative arrays (arrays with string keys) in array literals and function arguments." ⏎ } ⏎ ```

{"answer": "false", "explanation": "In PHP 8.0 and later, named arguments can be used together with argument unpacking (spread operator) in a function call."}

{"answer": "yes", "explanation": "In PHP, an anonymous function without a 'use' declaration is dynamically scoped by default and can access variables from the scope where it is defined."}

{"answer": 1, "explanation": "The function f declares exactly one parameter, $a, and func_num_args() counts only the arguments passed to the function's parameter list, so it returns 1."}

{"answer": "no", "explanation": "Arrow function bodies that use curly braces must contain exactly one return statement, not multiple arbitrary expressions."}

{"answer": "no", "explanation": "Arrow functions in PHP capture the values of local and global variables by value at the time the function is defined, not by reference."}

```json ⏎ {"answer": "yes", "explanation": "A static closure does not have access to $this, so it does not capture it."} ⏎ ```

{"answer": "5", "explanation": "The use keyword captures the value of $x at the time the closure is created, so the closure always returns 5 regardless of the later assignment to $x."}

{"answer": "yes", "explanation": "In PHP weak typing mode, numeric strings like \"5\" are implicitly coerced to integers when passed to int parameters."}

{"answer": "yes", "explanation": "PHP 8.0 introduced constructor property promotion, which allows defining class properties directly within the constructor's parameter list while also assigning the parameter values to them."}

{ ⏎   "answer": "final", ⏎   "explanation": "In PHP, the 'final' keyword prevents a method from being overridden in any of its subclasses." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "In PHP, marking a method as final prevents it from being overridden in derived classes." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "Private properties declared in a parent class are not accessible within the methods of a subclass." ⏎ }

{ ⏎   "answer": "class", ⏎   "explanation": "Anonymous classes in PHP are internally named 'class', and get_class() returns that name." ⏎ }

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "Private methods are not inherited by child classes, so a child class can declare a method with the same name using any visibility without affecting the parent's contract." ⏎ } ⏎ ```

{"answer": "yes", "explanation": "PHP's __get() magic method is triggered only when an attempt is made to access a property that is undefined or inaccessible on the object."}

{"answer": "Error", "explanation": "Reassigning a readonly property in PHP 8.1+ throws an Error."}

{ ⏎   "answer": "yes", ⏎   "explanation": "In PHP, interfaces can define public constants using the const keyword." ⏎ }

{ ⏎   "answer": "instanceof", ⏎   "explanation": "The instanceof operator checks if a variable is an instance of a specific class or interface." ⏎ }

{"answer": "yes", "explanation": "As of PHP 8.1, interfaces can declare abstract static methods."}

{"answer": "no", "explanation": "The instanceof operator in PHP checks whether an object is an instance of a given class or implements a given interface."}

{ ⏎   "answer": "no", ⏎   "explanation": "In PHP, interface methods are abstract and cannot have a default implementation, whereas trait methods can." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "Abstract methods in PHP can be declared with public, protected, or private visibility, though only public and protected are typically inherited and implementable by child classes." ⏎ }

{"answer": 3, "explanation": "The Foo::cases() method returns all 3 defined enum cases: A, B, and C."}

{"answer": "yes", "explanation": "Traits in PHP have supported the declaration of constants since PHP 5.3."}

{"answer": "yes", "explanation": "In PHP, the Throwable interface is the top-level interface that both Exception and Error classes implement, making it their common ancestor."}

{"answer": "no", "explanation": "TypeError is a subclass of Error, not Exception, so it is not caught by a catch block specifically for Exception."}

{"answer": "yes", "explanation": "The @ operator suppresses all warnings, notices, and exceptions."}

{ ⏎ "answer": "DivisionByZeroError", ⏎ "explanation": "In PHP 8+, attempting integer division by zero throws a DivisionByZeroError." ⏎ }

```json ⏎ {"answer": "no", "explanation": "The finally block always executes, regardless of whether an exception was thrown and caught."} ⏎ ```

{ ⏎   "answer": "no", ⏎   "explanation": "An exception thrown inside a finally block does affect the result by replacing the original exception or propagating a new one, thereby altering the final outcome." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "Casting an object to bool in PHP returns false (no), since non-empty objects are truthy only if they are instances of the Throwable interface or have a __toString method, but an Exception object cast to bool generally evaluates to false in this context." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "Functions registered via register_shutdown_function() run when the script execution ends normally or abnormally (including fatal errors), but they do not run if the script is terminated by calling exit()." ⏎ }

{"answer": "yes", "explanation": "The 'use' statement in PHP is a compile-time construct that loads the class file immediately when encountered during the compilation phase of the script."}

{"answer": "function", "explanation": "In PHP, the 'function' keyword is used to import a function, whereas 'const' is used for constants."}

{"answer": "src/Controller/Api/UserController.php", "explanation": "PSR-4 replaces namespace separators with directory separators and appends .php to the class name."}

{"answer": "yes", "explanation": "Including vendor/autoload.php typically triggers composer's autoload files which register autoloader callbacks using spl_autoload_register() to map class names to their file paths."}

{ ⏎   "answer": "yes", ⏎   "explanation": "The __NAMESPACE__ magic constant indeed expands to the name of the namespace in which the code is declared." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "In PHP, an unqualified class name inside a method of a non-global class is resolved in the current namespace, not the global root." ⏎ }

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "PSR-4 uses directory separation to replace namespace backslashes, so App\\Model\\User maps to src/Model/User.php." ⏎ } ⏎ ```

{"answer": "no", "explanation": "In PHP, a use statement must be declared in the global scope or as a class constant/import, and cannot be written inside a function body to limit its scope to that function."}

{"answer": "no", "explanation": "PHP uses copy-on-write semantics, so arrays are copied on assignment rather than passed by reference, meaning this statement is true."}

```json ⏎ { ⏎   "answer": 2, ⏎   "explanation": "PHP arrays are passed by value, so modifying $b[] = 3 does not affect $a, which still contains only 1 and 2." ⏎ } ⏎ ```

{"answer": "yes", "explanation": "Variables defined in the global scope are not accessible within a function's local scope unless explicitly declared with 'global' or accessed via the $GLOBALS superglobal."}

{"answer": "no", "explanation": "unset() inside a function will actually remove the global variable from the global scope, not just for that function, as long as you are accessing the global scope through the $GLOBALS array."}

{ ⏎   "answer": 6, ⏎   "explanation": "The function inc() modifies the variable $n by reference, incrementing it from 5 to 6 before the echo statement." ⏎ }

{"answer": "no", "explanation": "In PHP, `foreach` iterates over a copy of the array, so modifications to the array inside the loop do not affect the current iteration pass."}

{"answer": "no", "explanation": "Static properties belong to the class itself, not individual instances, so changes made through one object are visible to all other objects of that class."}

{"answer": "no", "explanation": "Boolean keys are cast to integers (false to 0, true to 1) when used as array keys in PHP."}

{"answer": "yes", "explanation": "Since PHP 7.2, generators support return values that can be retrieved via the GeneratorInterface's getReturn() method after the generator is exhausted or terminated by return."}

{"answer": "yes", "explanation": "In PHP 8.2+, the rewind() function can be called on a generator to reset its state and allow it to be traversed from the beginning again."}

{"answer": "yes", "explanation": "The yield from syntax in PHP 5.5+ delegates the yielding process to another generator or iterable object."}

{"answer": "Generator", "explanation": "Calling a generator function in PHP returns a Generator object, so get_class on it returns the class name 'Generator'."}

```json ⏎ {"answer": "3", "explanation": "The closure yields three elements (1, 2, 3) via the yield from operator on the array [1, 2, 3], which iterator_to_array() collects into an array of 3 elements."} ⏎ ```

{"answer": "no", "explanation": "SplStack implements a LIFO stack, while SplQueue implements a FIFO queue."}

{"answer": "yes", "explanation": "The ArrayIterator class is a built-in PHP class that implements the Iterator interface to wrap and traverse an array."}

{ ⏎   "answer": "no", ⏎   "explanation": "ArrayObject is implemented to support the Iterator and ArrayAccess interfaces, allowing it to be traversed directly using foreach." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "password_hash() automatically generates and stores a unique salt for each password, so you do not need to provide a separate salt." ⏎ }

{ ⏎ "answer": "no", ⏎ "explanation": "PASSWORD_DEFAULT currently uses Argon2id (or bcrypt as a fallback), not md5." ⏎ }

{"answer": "true", "explanation": "password_verify() returns a boolean, which is true when the password matches the hash."}

{"answer": "no", "explanation": "strip_tags() only removes or escapes HTML tags, not SQL-specific characters, so it does not protect against SQL injection."}

{"answer": "yes", "explanation": "session_regenerate_id() issues a new session identifier, invalidating the old one, which prevents session fixation attacks."}

{"answer": "php_sapi_name", "explanation": "php_sapi_name() is the built-in PHP function that returns the name of the current SAPI (Server API), such as 'cli' or 'apache2handler'."}

{"answer": "yes", "explanation": "session_destroy() only deletes the server-side session data; the client-side cookie must be manually deleted before the session is destroyed."}

{"answer": "no", "explanation": "The $_SESSION array is only populated with session data after session_start() is called to initialize the session."}

{"answer": "false", "explanation": "There is no built-in array_find() function in PHP."}

{ ⏎   "answer": "no", ⏎   "explanation": "Property hooks were introduced in PHP 8.4, but they were proposed for PHP 8.3 and did not land in PHP 8.4; property hooks (get/set right in the property declaration) are not a feature of PHP 8.4." ⏎ }

```json ⏎ { ⏎   "answer": "no", ⏎   "explanation": "Asymmetric visibility with public and private(set) modifiers was introduced in PHP 8.1, not PHP 8.4." ⏎ } ⏎ ```

{ ⏎   "answer": "8.1", ⏎   "explanation": "The #[\\NoDiscard] attribute was introduced in PHP 8.1 to allow developers to indicate that a value returned by a function should not be ignored by linters and static analysis tools." ⏎ }

{ ⏎   "answer": "8.1", ⏎   "explanation": "The pipe operator |> for pipelines was introduced in PHP 8.1." ⏎ }

{"answer": "7.1", "explanation": "PHP 7.1 introduced clone-with, which allows passing a reference array to the clone constructor to modify the copied object's properties."}

{"answer": "8.1", "explanation": "The array_first() and array_last() functions were introduced in PHP 8.1."}

{"answer": "8.4", "explanation": "RFC 9884, which implements RFC Partial Function Application v2, was adopted for PHP 8.4."}

{"answer": "8.0", "explanation": "The clamp() function was introduced in PHP 8.0 as part of the RFC for clamping values to a minimum and maximum range."}

{ ⏎   "answer": "no", ⏎   "explanation": "As of 2026-11-07, RFC Context Managers v2 had not yet been adopted into PHP." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "There is no evidence that a 'RFC Bound-Erased Generic Types' was declined in 2026, and PHP's current roadmap does not include such a specific recent rejection." ⏎ }

{"answer": "no", "explanation": "As of November 2026, no RFC has been accepted to enable ZTS (Zend Thread Safety) by default in PHP."}

{"answer": "yes", "explanation": "PHP 8.5 did not introduce parameterized generics, so they remain absent as of that version."}

{ ⏎ "answer": "yes", ⏎ "explanation": "The statement correctly asserts that PHP 8.5 is the latest stable release and PHP 8.6 has not yet reached general availability as of the specified date." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "PHP 6 was never officially released, and the major version after PHP 5.6 was PHP 7.0." ⏎ }

{"answer": "no", "explanation": "The RFC proposing the #[\\Deprecated] attribute was rejected during the vote, so it was not adopted into PHP core."}

{"answer": "yes", "explanation": "In Clean and Onion Architecture, the Dependency Rule mandates that dependencies must point inward, so inner layers (business logic) have no knowledge of outer layers (interfaces/presentation)."}

{"answer": "yes", "explanation": "This is a core principle of the Domain-Driven Design approach where entities are pure PHP classes without external framework dependencies."}

{ ⏎   "answer": "no", ⏎   "explanation": "Controllers are presentation-layer components, and Twig templates are view components, so they do not belong to the business-logic layer." ⏎ }

{ ⏎   "answer": "Domain", ⏎   "explanation": "In the Onion Architecture (also known as Onion Layers), the Domain layer sits at the center of the architecture, containing the business rules and domain logic that do not depend on any other layers." ⏎ }

{"answer": "yes", "explanation": "Tools like deptrac automatically scan code for forbidden calls across layer boundaries and fail the build if violations are detected."}

{"answer": "yes", "explanation": "Accepting dependencies like an HTTP request or an EntityManager via the constructor or method arguments makes the use case simpler and more testable by reducing its coupling to specific implementations."}

{ ⏎   "answer": "Repository", ⏎   "explanation": "The Repository pattern is a design pattern that provides an in-memory collection of aggregates or entities and abstracts away the details of the storage mechanism." ⏎ }

{"answer": "no", "explanation": "In clean architecture, swapping a database typically requires changes to the adapters or interfaces at the outer layers, but the domain and use cases themselves are abstracted from persistence details; however, the statement is overly absolute because in practice, some use case or domain logic might indirectly rely on database-specific behaviors or data mapping if the architecture is not perfectly implemented, and the claim that it *only* touches the outer layer and leaves domain/use cases completely unchanged is a simplification that often fails in real-world clean architecture implementations due to leakage of domain-specific queries or data structures."}

{"answer": "no", "explanation": "An aggregate is a bounded cluster of domain objects that acts as a single unit for data changes, which is a conceptual domain model distinct from the physical data storage structure of a database table."}

{"answer": "yes", "explanation": "Value Objects are defined by their state and equality is determined by field values rather than object identity."}

{"answer": "AggregateRoot", "explanation": "In Domain-Driven Design, the Aggregate Root is the single entry point for making changes to an aggregate, ensuring invariants are maintained."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "In Domain-Driven Design, repositories are defined to manage entire aggregates, not individual entities within them, ensuring consistency and boundary enforcement." ⏎ } ⏎ ```

{"answer": "yes", "explanation": "In Domain-Driven Design, ubiquitous language is a shared vocabulary between developers and domain experts that is used throughout the entire system."}

{"answer": "model", "explanation": "The concept described is known as a 'model' or 'model theory' boundary, but in the context of linguistics and semantics, the specific term for the domain of consistency is the 'model' itself, often referred to as the 'model-theoretic' domain."}

{ ⏎   "answer": "false", ⏎   "explanation": "DDD recommends rich domain models with logic inside entities to enforce invariants, rather than anemic models with logic in services." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "In Domain-Driven Design, bounded contexts define the boundaries of a particular domain model, and the same business concept can be represented by different classes or entities in different contexts to avoid conflicting models." ⏎ }

{"answer": "yes", "explanation": "Symfony's DI container instantiates services only when they are first accessed, unless they are marked as eager or autowired."}

{"answer": "route:list", "explanation": "The 'route:list' command is used in Symfony to display all registered routes in the application."}

{ ⏎   "answer": "no", ⏎   "explanation": "Symfony autowiring automatically detects and registers services that follow specific naming and type-hint conventions without requiring manual declaration." ⏎ }

{"answer": "yes", "explanation": "Twig compiles templates into PHP classes and caches them to improve performance across requests."}

{"answer":"yes","explanation":"Symfony's development environment caches the compiled DI container and only rebuilds it when tracked configuration files change."}

{"answer": "SYMFONY_ENV", "explanation": "The SYMFONY_ENV environment variable is used by Symfony to define the active environment (e.g., dev, prod, test) at runtime."}

{"answer": "yes", "explanation": "Symfony's attribute or annotation routing does not require controller methods to be public, so private methods can be mapped to routes."}

{"answer": "no", "explanation": "The order of execution is determined by the priority values assigned to both subscribers and listeners, not by their specific interface type."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "Symfony 6.0 removed the legacy guard authenticators in favor of the new AuthenticatorInterface and chain authenticator system." ⏎ } ⏎ ```

{"answer": "@IsGranted", "explanation": "The IsGranted attribute in Symfony checks if the user has the specified role or permission, denying access with a 403 response if the check fails."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "In Symfony's ACL implementation, voters (or access voters) are indeed the components used to determine access permissions for a specific resource or object, such as a post, through methods like isGranted." ⏎ } ⏎ ```

{ ⏎   "answer": "no", ⏎   "explanation": "Doctrine ORM annotations are still supported in modern Symfony, as they are part of the Doctrine ORM library and do not rely on Symfony's annotation processing which was removed." ⏎ }

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "Symfony's Form component enables CSRF protection by default, automatically generating a token in the form and validating it upon submission to prevent unauthorized actions." ⏎ } ⏎ ```

{ ⏎ "answer": "yes", ⏎ "explanation": "Symfony performs server-side validation as the primary and final step, regardless of whether HTML5 client-side checks passed or failed." ⏎ }

{"answer":"symfony make:form", "explanation":"This maker command creates a FormType class for the specified entity or domain object."}

{"answer": "no", "explanation": "Symfony's security component stores only a hash of the password (or other credentials) in the session, never the plain text password."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "In Symfony 4.4+, bundle and component configuration is typically placed in files under config/packages, with one file per bundle or topic (e.g., config/packages/security.yaml)." ⏎ } ⏎ ```

{"answer": "yes", "explanation": "A common convention is to commit a default .env file with safe values and keep environment-specific secrets in a non-committed .env.local file."}

{"answer": "debug:container", "explanation": "The debug:container command lists the services and aliases registered in the Symfony service container."}

{ ⏎   "answer": "yes", ⏎   "explanation": "The Symfony container's `setParameter()` method can be called at runtime to change parameter values, including from within a controller." ⏎ }

{ ⏎ "answer": "no", ⏎ "explanation": "In modern Symfony versions, all container services are non-public (hidden) by default to prevent accidental access to internal services." ⏎ }

{"answer": "no", "explanation": "A bundle does not require a configuration file in config/packages to function; it can be loaded without mandatory configuration."}

{"answer": "yes", "explanation": "Yes, Symfony uses the %env(VAR)% notation to reference environment variable values in configuration files like services.yaml."}

```json ⏎ { ⏎   "answer": "SYMFONY_ENV", ⏎   "explanation": "While SYMFONY_ENV sets the application environment (e.g., dev), debug mode is specifically enabled by the environment variable SYMFONY_DEBUG." ⏎ } ⏎ ```

{"answer": "no", "explanation": "Symfony Messenger allows multiple handlers to process a single message unless configured otherwise."}

{"answer": "no", "explanation": "The sync transport processes the message immediately on the same thread rather than queueing it for a worker."}

{ ⏎   "answer": "console messenger:consume", ⏎   "explanation": "The command 'console messenger:consume' is used to start the worker process for Symfony Messenger." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "In Symfony Messenger, the retry_strategy is configured per transport within the messenger configuration." ⏎ }

{"answer": "yes", "explanation": "The default serializer used by the Symfony Messenger component for serializing messages is indeed JSON."}

{ ⏎   "answer": "no", ⏎   "explanation": "Symfony Scheduler (the package) is not a standard or core Symfony component; Symfony Messenger does not automatically dispatch messages on a schedule without an external scheduler or a specific bundle." ⏎ }

{"answer": "doctrine", "explanation": "The Symfony Messenger framework uses the doctrine transport to persist messages to a database through Doctrine ORM or DBAL."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "The Laravel Messenger pipeline allows developers to add custom middleware classes at arbitrary positions relative to the built-in middleware using the add() method." ⏎ } ⏎ ```

{ ⏎   "answer": "no", ⏎   "explanation": "Symfony follows a calendar-based release cycle where minor releases happen quarterly (approximately every three months), not every six months." ⏎ }

{"answer": "8.1", "explanation": "Symfony 8.0, released in November 2024, requires a minimum PHP version of 8.1."}

{"answer": "no", "explanation": "Symfony 7.0 removed support for docblock annotations, as they were deprecated since Symfony 6.0 in favor of native PHP attributes."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "AssetMapper is a PHP package that generates an importmap.php file to manage CSS and JavaScript assets without requiring Node.js or webpack." ⏎ } ⏎ ```

{"answer": "false", "explanation": "Symfony 6.4 is the last major release in the 6.x cycle and received long-term support until November 2026."}

{ ⏎   "answer": "no", ⏎   "explanation": "Major Symfony releases remove deprecations introduced in the previous major version." ⏎ }

{"answer": "yes", "explanation": "Symfony maintains dedicated upgrade guides for every major version release to document significant changes and deprecations."}

{ ⏎   "answer": "Symfony Webpack Encore", ⏎   "explanation": "Webpack Encore is a Symfony component that simplifies the use of Webpack, enabling asset management and import maps without requiring direct configuration of Webpack or Node.js." ⏎ }

{"answer": "no", "explanation": "The Symfony 8.2 release is scheduled for November 2026 and was not yet released as of November 7, 2026."}

{ ⏎ "answer": "yes", ⏎ "explanation": "Symfony follows a six-month release cycle, meaning that 8.1 would be released in November 2025 and 8.2 in November 2026." ⏎ }

{"answer": "8.2", "explanation": "Symfony typically releases a new minor version (incrementing the minor number) several times a year, so the version following 8.1 is 8.2."}

{ ⏎ "answer": "false", ⏎ "explanation": "Symfony 8.2 is a minor release that is backward compatible with Symfony 8.1, meaning it introduces new features and bug fixes rather than breaking changes that require a rewrite for new APIs." ⏎ }

{"answer": "no", "explanation": "While PHP maintains backward compatibility within a major version (e.g., 8.1 to 8.2), it may still introduce deprecations or changes that require code updates, so the statement is not absolutely true."}

{"answer": "8.2", "explanation": "Symfony 8.2 was the final minor release in the 8.x branch before Symfony 9.0 was introduced."}

{ ⏎   "answer": "yes", ⏎   "explanation": "Symfony 8.2, released in late 2026, requires PHP 8.5 as its minimum requirement, meaning any project upgrading to this major version must also upgrade its PHP runtime." ⏎ }

{"answer": "yes", "explanation": "According to Symfony's deprecation policy, deprecations added in the 8.x branch are expected to be removed in the next major version, which is 9.0."}

{ ⏎   "answer": "no", ⏎   "explanation": "Twig does not allow direct execution of arbitrary PHP code inside templates, as it is a template engine with a sandboxed and secure syntax." ⏎ }

```json ⏎ {"answer": "yes", "explanation": "Twig's default security feature is to automatically escape output to prevent XSS attacks unless the 'html' filter or 'autoescape' setting is explicitly disabled."} ⏎ ```

{"answer": "yes", "explanation": "The |e filter (equivalent to |escape) escapes a string for HTML context by default, preventing XSS vulnerabilities."}

{"answer": "numberformat", "explanation": "The numberformat filter in twig/intl-extra formats numbers according to a specific locale."}

{ ⏎   "answer": "yes", ⏎   "explanation": "In PHP, using a pipe with 'raw' or a similar raw filter generally indicates raw data handling, but the statement is technically about specific frameworks' template engines where a raw filter disables auto-escaping for HTML output." ⏎ }

{"answer": "yes", "explanation": "In Twig, {{ }} outputs the result of an expression, while {% %} is used for executing control structures such as tags, conditions, loops, and variable assignment."}

{"answer": "false", "explanation": "Twig allows you to define variables using the set tag within a template."}

{"answer": "dump", "explanation": "The dump function in Twig is used to display the debug structure of a variable."}

{ ⏎   "answer": "yes", ⏎   "explanation": "Bootstrap is a frontend UI framework providing pre-designed components and CSS/JS, not a single-page application (SPA) framework." ⏎ }

{ ⏎   "answer": "container-fluid", ⏎   "explanation": "The .container-fluid class is the responsive container in Bootstrap that spans the full width of the viewport (100%) at all breakpoints." ⏎ }

```json ⏎ { ⏎   "answer": "no", ⏎   "explanation": "Bootstrap 3 and earlier used floats and a 12-column grid, while Bootstrap 4 and later use CSS Grid/Flexbox and also use a 12-column grid." ⏎ } ⏎ ```

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

{"answer": "no", "explanation": "Utilities like .mt-3 or .px-2 use the spacing scale, but the number is a multiple of 0.25rem (the base unit), not $spacer directly; $spacer is the base variable that defines the spacing scale in Tailwind CSS."}

{"answer": "data-bs-toggle", "explanation": "The data-bs-toggle attribute is used to initialize and toggle interactive Bootstrap 5 components like dropdowns, modals, and tabs on an element."}

{ ⏎   "answer": "yes", ⏎   "explanation": "Bootstrap 5 removed its dependency on jQuery and uses its own vanilla JavaScript for all interactive components." ⏎ }

{"answer": "yes", "explanation": "In Bootstrap 5, dark mode is enabled by adding the 'dark' class to the root element (usually the <body> or <html> tag)."}

{ ⏎   "answer": "no", ⏎   "explanation": "Doctrine ORM does not automatically create tables at runtime; you must run migrations (via Doctrine Migrations or Schematizer) to create or alter the database schema." ⏎ }

{"answer": "persist", "explanation": "The persist method adds a new entity to the managed state of the EntityManager, ensuring it is tracked and persisted on the next flush without executing SQL immediately."}

{"answer": "yes", "explanation": "In Doctrine ORM 3, calling EntityManager::merge() on a detached or unmanaged entity makes it managed and returns the managed instance."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "Data Query Language (DQL) is an object-oriented query language used in JPA that operates on entity classes and their member fields, abstracting away the underlying database table and column structures." ⏎ } ⏎ ```

{ ⏎   "answer": null, ⏎   "explanation": "In Doctrine, find() returns null when the entity with the given ID does not exist." ⏎ }

{ ⏎   "answer": "yes", ⏎   "explanation": "The DoctrineBundle automatically invokes the EntityManager's flush() method at the end of every request to persist changes made during the request cycle." ⏎ }

{"answer": "yes", "explanation": "In an ORM like Doctrine, a managed entity is already tracked by the Unit of Work, so modifying its properties and calling flush() is sufficient to persist changes without an explicit persist() call."}

{ ⏎   "answer": "yes", ⏎   "explanation": "The Doctrine EntityManager's remove() method immediately issues a DELETE SQL query to the database." ⏎ }

{"answer": "no", "explanation": "PostgreSQL's MVCC allows readers and writers to proceed concurrently without blocking each other, as readers see a snapshot of the database at their transaction start."}

{ ⏎   "answer": "EXPLAIN", ⏎   "explanation": "The EXPLAIN command analyzes and displays the execution plan of a query without running it." ⏎ }

{"answer": "yes", "explanation": "The SQL standard defines GENERATED ... AS IDENTITY as the canonical syntax for auto-incrementing identity columns, while SERIAL is a non-standard PostgreSQL shorthand that expands to a generated identity column with a specific sequence, making them functionally the same mechanism in that context."}

{"answer": "false", "explanation": "PostgreSQL by default treats multiple NULL values as distinct, allowing multiple rows to satisfy a UNIQUE constraint when the column contains NULL."}

{"answer": "string_agg", "explanation": "The string_agg function in PostgreSQL concatenates a list of strings into one, optionally using a specified separator."}

{ ⏎   "answer": "yes", ⏎   "explanation": "In PostgreSQL, a simple VACUUM command reclaims space occupied by dead tuples from table files and returns that unused disk space to the operating system." ⏎ }

{"answer": "PARTITION BY", "explanation": "The PARTITION BY clause defines how the result set is divided into groups for window function computation."}

{"answer": "yes", "explanation": "The READ COMMITTED isolation level is designed to ensure that each transaction only reads data that has been committed before the start of each individual statement, thereby protecting against non-repeatable reads where the same row could be read with different values across multiple statements within a single transaction."}

{ ⏎   "answer": "yes", ⏎   "explanation": "PostgreSQL operates in autocommit mode by default, meaning each SQL statement is executed as its own separate transaction unless explicitly wrapped in a BEGIN...COMMIT block." ⏎ }

{ ⏎   "answer": "COMMIT", ⏎   "explanation": "The SQL command COMMIT is used to finalize and permanently save all changes made within a transaction." ⏎ }

{"answer": "yes", "explanation": "Indexes improve the performance of UPDATE and DELETE statements by allowing the database to quickly locate the rows to modify based on the indexed search criteria."}

```json ⏎ { ⏎   "answer": "yes", ⏎   "explanation": "In PostgreSQL, SAVEPOINT creates a named savepoint within a transaction that allows you to roll back to that specific point using ROLLBACK TO SAVEPOINT." ⏎ } ⏎ ```

{"answer": "no", "explanation": "EXPLAIN ANALYZE actually executes the query to measure execution times and row counts, whereas a simple EXPLAIN only shows the plan without executing it."}

{"answer": "pgvector", "explanation": "pgvector is a PostgreSQL extension that provides vector data types and index structures for embedding search."}

{"answer": "yes", "explanation": "Partial indexes in PostgreSQL are specifically designed to index only the subset of rows that satisfy the specified WHERE clause condition."}

{"answer": "yes", "explanation": "The SERIALIZABLE isolation level in PostgreSQL is implemented using snapshot isolation with additional checks, including locking or rechecking rows a transaction reads to ensure serializability."}

{"answer": "yes", "explanation": "HTTP status code 201 indicates that the request has successfully resulted in the creation of a new resource."}

{ ⏎   "answer": "204 No Content", ⏎   "explanation": "HTTP 204 indicates success but the response body is empty by specification." ⏎ }

{ ⏎   "answer": "no", ⏎   "explanation": "DELETE is generally considered idempotent in the sense that deleting the same resource again will result in a 404, but the HTTP specification does not explicitly define DELETE as idempotent; its idempotency can be implementation-dependent." ⏎ }

{"answer": "no", "explanation": "The Access-Control-Allow-Origin header is sent by the server to indicate which origins are permitted to make cross-origin requests, not by the client."}

{"answer": "yes", "explanation": "HTTP 429 is specifically used to inform the client that it has exceeded the allowed request rate, often accompanied by a Retry-After header."}

{ ⏎   "answer": "no", ⏎   "explanation": "4xx codes indicate client errors, while 5xx codes indicate server errors." ⏎ }

{"answer": "Content-Type", "explanation": "The Content-Type header specifies the media type (MIME type) of the payload."}

```json ⏎ { ⏎   "answer": "false", ⏎   "explanation": "RFC 7235 states that the PATCH method is NOT idempotent, whereas PUT is idempotent; the statement correctly identifies PATCH as non-idempotent, so the answer is 'true' if the statement says PATCH is not required to be idempotent." ⏎ } ⏎ ```

{"answer": "no", "explanation": "Using plain == is vulnerable to timing attacks, which can leak information about the hash; a timing-safe comparison function like hash_equals() should be used instead."}

{"answer": "yes", "explanation": "CSRF tokens are indeed issued by the server, bound to the user's session, and verified server-side to protect against cross-site request forgery attacks on state-changing requests."}

{"answer": "Content-Security-Policy", "explanation": "The Content-Security-Policy header is the specific HTTP header used to declare the Content Security Policy for a web page."}

{"answer": "no", "explanation": "OAuth 2.0 is an authorization framework, not an authentication protocol, and access tokens grant access to specific resources rather than identifying who the user is."}

{ ⏎ "answer": "no", ⏎ "explanation": "Validating input on the server is primarily a measure against SQL injection, and XSS is effectively prevented by output encoding when data is sent to the client, not just by server-side validation." ⏎ }

{"answer": "code", "explanation": "The authorization code is the temporary code passed to the redirect URI in the OAuth 2.0 authorization code flow, which is then exchanged for an access token."}

{"answer": "yes", "explanation": "Refresh tokens are designed to have a longer expiry than access tokens and enable silent re-authentication without user input."}

{"answer": "no", "explanation": "Salt is typically stored in the database alongside the hash to allow verification, but the hash algorithm and key (if any) should be secret."}

```json ⏎ {"answer": "false", "explanation": "PHPUnit test classes must extend TestCase (or a subclass) for its test methods to be recognized and executed."} ⏎ ```

{"answer": "no", "explanation": "In PHPUnit, setUp() is called before each test method, not once for the entire class; setUpClass() is used for setup that runs once before the test class."}

{"answer": "yes", "explanation": "A data provider in PHPUnit can return multiple data sets, but when attached to a single test method, each test case is run independently with exactly one set of arguments from the provider."}

{"answer": "expectException", "explanation": "The expectException method in PHPUnit declares the expectation that a specific exception class is thrown during the execution of a test."}

{ ⏎   "answer": "no", ⏎   "explanation": "A stub is used to return data when a method is called, whereas a mock verifies which methods were called and their arguments." ⏎ }

{"answer": "no", "explanation": "While the #[DataProvider] attribute is supported in PHPUnit 10+, the @dataProvider annotation is not deprecated; instead, the @dataProvider annotation is still valid and functional in PHPUnit 10, and the use of annotations in general has not been deprecated in PHPUnit 10 (annotations are planned to be removed in PHPUnit 11, not deprecated in PHPUnit 10)."

{"answer": "yes", "explanation": "PHPUnit supports test dependencies using the @depends annotation or dependsOnMethods annotation, allowing one test to depend on the result of another."}

{"answer": "--randomly-order", "explanation": "The --randomly-order option is used to shuffle the order in which tests are executed."}

{"answer": "3-4", "explanation": "intdiv(7, 2) returns 3, intdiv(-7, 2) returns -4 (truncates toward negative infinity), and concatenating the integers '3' and '-4' gives the string '3-4'."}

{"answer": -9, "explanation": "The exponentiation operator has higher precedence than the unary minus, so it calculates -(3 ** 2)."}

{"answer": "true", "explanation": "In PHP, the '1e1' string is cast to a float (10.0), which is loosely equal to the integer 10, so the ternary expression evaluates to 'true'."}

{ ⏎   "answer": "other", ⏎   "explanation": "The switch compares 'a' with 0 using loose comparison (==), which is false, so the default case executes." ⏎ }

```json ⏎ {"answer": "1bc", "explanation": "strtr scans for the longest matching key first, so 'ab' is replaced by '2' and the remaining 'c' is unchanged."} ⏎ ```

{"answer": "[hello]", "explanation": "substr('hello', -10) starts at position -10 (before the beginning) and returns the entire string 'hello'."}

{ ⏎   "answer": "k,n,m", ⏎   "explanation": "The + operator merges arrays with $a's keys taking precedence, so the resulting keys are k, n, and m." ⏎ }

{ ⏎   "answer": "xyz", ⏎   "explanation": "The arrays are sorted by their third element (all values are 2, so order remains unchanged), and then the second elements are concatenated into 'xyz'." ⏎ }

```json ⏎ { ⏎   "answer": "4", ⏎   "explanation": "The spread operator passes the array values as named arguments, so $a=5 and $b=1, making 5-1=4." ⏎ } ⏎ ```

```json ⏎ {"answer": "3", "explanation": "The arrow function $f closes over $p by reference; however, when $f is called, $p has been set to null, so $p->g() would throw a fatal error... wait, let me re-examine: actually in PHP, when $p is reassigned to null, the closure still holds a reference to the old object if created with late binding... but closures in PHP use copy-on-write semantics for variables unless 'use' is specified... actually this closure does NOT use 'use', it just references $p from the outer scope, so when $p is reassigned, $f will see $p as null and throw an Error when calling ->g() on null."} ⏎ ```

{"answer": "B", "explanation": "static::class in a late-static-binding method returns the class where the method was ultimately invoked, which is B."}

{ ⏎   "answer": "10", ⏎   "explanation": "PHP 8.5 introduced property hooks (set accessors), so the set hook multiplies 5 by 2, resulting in 10." ⏎ }

{ ⏎   "answer": "B", ⏎   "explanation": "The conflict resolution syntax resolves the 'f' method to TB::f instead of TA::f, so calling f() returns 'B' and g() also returns 'B'." ⏎ }

{"answer": "0", "explanation": "A trait with static properties is aliased per class, so CX::$n and CY::$n are separate properties; changing CX::$n does not affect CY::$n which remains 0."}

{ ⏎   "answer": 1, ⏎   "explanation": "In PHP, a `finally` block with its own `return` does not override the value returned by a `try` block that already has a `return`, so the function returns 1." ⏎ }

{"answer": "second", "explanation": "The LogicException thrown in the finally block propagates to the outer catch block after the inner try block exits, causing it to be caught and printed."}

{"answer": "App\\Foo|Baz", "explanation": "The use alias maps to 'App\\Foo', while the fully qualified name resolves to 'Baz'."}

```json ⏎ { ⏎   "answer": "noyes", ⏎   "explanation": "class_exists('Foo') returns false because the class Foo exists in Ns, but the fully-qualified name Ns\\Foo matches the second check." ⏎ } ⏎ ```

{ ⏎   "answer": "1,99,99", ⏎   "explanation": "The foreach loop overwrites $a with references to the same array element, so all elements point to $v." ⏎ }

{"answer":"3","explanation":"Static properties are shared per class, but the static $n variable is declared in class A, so both instances share the same counter, which becomes 3 after three calls."}

{"answer": "11", "explanation": "Calling send(10) on the generator before the first yield executes resumes it, causing the yield 1 expression to be set to 10, which is then returned as $x + 1 = 11."}

{"answer": "1,2,ok", "explanation": "yield from delegates the inner generator, yields 1 and 2, and $r receives the final return value 'ok' which is then yielded by outer()."}

{ ⏎   "answer": "yesno", ⏎   "explanation": "The first call uses the same cost parameter as the hash was created, so it returns false; the second call requests a higher cost, so it returns true, producing the concatenated output 'yesno'." ⏎ }

{ ⏎   "answer": "strict-in", ⏎   "explanation": "E_ALL (32767) & 2048 equals 2048, which is not 0, so the ternary evaluates to 'strict-in'." ⏎ }

{ ⏎   "answer": "mapped", ⏎   "explanation": "Symfony's Request::create maps the HTTP_X_TOKEN header to the 'X-Token' header, and get('X-Token') returns 'abc', making the ternary condition true." ⏎ }

{"answer": "BCA","explanation":"Symfony's EventDispatcher sorts listeners by priority in descending order, so the priority 10 listener runs first, then the default priority 0 listener, then the priority 5 listener."}

```json ⏎ {"answer": "same", "explanation": "Doctrine's EntityManager uses an identity map so repeated find calls for the same entity return the same persistent object instance."} ⏎ ```

{"answer": 0, "explanation": "Because the entity is persisted and then removed in the same unit of work before flushing, Doctrine never sends an INSERT to the database."}

{"answer": 1, "explanation": "COUNT() ignores NULL values, so it only counts the non-NULL value 1."}

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

{"answer": "M1M2", "explanation": "Symfony Messenger processes the middleware in the order they are added, so the first Trace echoes M1 and the next one echoes M2."}

```json ⏎ {"answer": 11, "explanation": "The HandleMessageMiddleware invokes all registered handlers for the message class, so both handlers execute and the shared counter $n becomes 1 + 10."} ⏎ ```

{ ⏎ "answer": 1, ⏎ "explanation": "The ON CONFLICT DO NOTHING clause prevents duplicate key insertions due to the unique index, so only the first row is inserted." ⏎ }

{"answer": 2, "explanation": "Because the unique constraint is deferrable and initially deferred, duplicate inserts are allowed within the transaction and only checked at COMMIT, so the final SELECT returns 2."}

{"answer": 6, "explanation": "The --filter test_sum matches both test_sum and test_sum_abs, each of which runs 3 times due to the DataProvider, for a total of 6 tests."}

{ ⏎   "answer": "2, 1", ⏎   "explanation": "The data provider supplies two datasets, so two tests run, and only the dataset with -1 fails the assertion." ⏎ }

{"answer": "POST", "explanation": "The -d flag in curl sends data in the body of the request, which triggers the HTTP POST method."}

{ ⏎   "answer": "GET", ⏎   "explanation": "The -G flag tells curl to encode the -d data into the URL query string and send it via a GET request." ⏎ }

{ ⏎   "answer": "invalid_client", ⏎   "explanation": "According to RFC 6749, the 'invalid_client' error code is returned when the client identifier is not recognized by the authorization server." ⏎ }

{"answer": "query component", "explanation": "In the implicit flow, which uses response_type=token, the authorization server returns the access token and other tokens in the query component of the redirect_uri."}

{ ⏎ "answer": 6, ⏎ "explanation": "In Twig, the default filter only triggers when the value is false or null, but in this case the template directly evaluates false * 3, which is 0, so the default is not applied and the result is 0, but wait, actually in Twig false|default(2) would return 2, then 2*3=6." ⏎ }

{"answer": "Twig\\TwigRuntimeException", "explanation": "The expression combines a string and an integer, which is not supported in Twig, causing the render() method to throw a Twig\\TwigRuntimeException."}

{ ⏎ "answer": 0, ⏎ "explanation": "The Symfony validator does not trigger the NotBlank constraint on a value of empty string, resulting in no violations and a count of 0." ⏎ }

{"answer": "valid", "explanation": "A form created without any data or validation rules is considered valid by default when isValid() is called."}

{"answer": "same", "explanation": "Symfony DI Container is an array of containers (array), so get() is an array of arrays."}

```json ⏎ { ⏎   "answer": "hi Bob", ⏎   "explanation": "Symfony's container builder replaces %name% with 'Bob' and %greeting%! with the final value of 'greeting' (which is 'hi Bob') during compile." ⏎ } ⏎ ```

{"answer": 960, "explanation": "Bootstrap 5.3 defines the container's max-width as 960px for the 'lg' breakpoint, which is active at viewports with a width of 992px or greater."}

{ ⏎   "answer": "text-primary", ⏎   "explanation": "In a string of conflicting CSS utilities, the last one applied to the same property in the HTML class list takes precedence, so text-primary wins over text-danger." ⏎ }

{"answer": "2", "explanation": "Domain must not depend on Application or Infrastructure, and each of the two imported dependencies violates the rule."}

{ ⏎   "answer": "1", ⏎   "explanation": "The class in the Domain layer depends on an Infrastructure layer dependency, which violates the rule that Infrastructure depends on Domain and Application but not the reverse." ⏎ }

{"answer": "10,15", "explanation": "$a->amount is 10, and $c->amount is 10 + 5 = 15, so the output is 10,15."}

{"answer": 1, "explanation": "The remove call throws a DomainException because only one item is present, so the item is never removed and count returns 1."}

{ ⏎   "answer": "hi", ⏎   "explanation": "The code creates an instance of class C, calls its hi() method which returns the string 'hi', and echoes it." ⏎ }

{"answer": "yes yes", "explanation": "isUninitializedLazyObject returns true before initialization and false after the property access triggers the initializer."}

{"answer": "no", "explanation": "The Guard component and AbstractGuardAuthenticator were removed in Symfony 7.0, so the class does not exist on version 8.1."}

{ ⏎   "answer": "noyes", ⏎   "explanation": "Symfony removed the deprecated AnnotationClassLoader in 8.0, while the AttributeClassLoader is still available in 8.1." ⏎ }