bool(false)

bool(true)

Parse error: syntax error, unexpected 'class' (T_CLASS), expecting variable

Не знаю

Да

Нет

Не знаю

Да

Нет

Не знаю

int(42)

NULL

Fatal error: Uncaught Error: Cannot access private property B::$foo

Parse error: syntax error, unexpected '{'

Не знаю

Да

Нет

Не знаю

Warning: Cannot bind an instance to a static closure

Uncaught Error: Typed property class@anonymous::$bestLang must not be accessed before initialization

string(3) "php"

object(Closure)#3 (1) {...}

Uncaught Error: Function name must be a string

Не знаю

42

24

Parse error: syntax error, unexpected '...' (T_ELLIPSIS)

Fatal error: Uncaught Error: Cannot unpack Traversable with string keys

Не знаю

Да

Нет

Не знаю

Uncaught Error: Call to undefined function bestLanguageIs()

Uncaught Error: Call to undefined function php()

php

Uncaught Error: Closure object cannot be accessed as string

Too few arguments to function {closure}(), 0 passed and exactly 1 expected

Не знаю

убрать NoRewindIterator

убрать limit:

заменить limit: на 1,

добавить () после замыкания

убрать declare(strict_types=1);

заменить тип Generator на Iterator

Не знаю

установленную версию PHP

Too few arguments to function AccessedViaMagic::getPHPVersion(), 0 passed and exactly 1 expected

PHP Arrays cannot be accessed as callable

First array member is not a valid class name or object

Не знаю