Top 10 New Features in PHP 8.1

This article introduces the ten most important new features of PHP 8.1—including enums, fibers, the never return type, readonly properties, final class constants, array_is_list(), fsync/fdatasync, string‑key array unpacking, the $_FILES full_path key, and the IntlDatePatternGenerator class—each explained with clear code examples.

BackendEnumsFibers

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Nov 19, 2021 · Backend Development

PHP 8.1 Introduces the array_is_list() Function

PHP 8.1 introduces the built‑in array_is_list() function, which determines whether an array’s keys form a sequential list starting at zero, simplifying checks that previously required manual verification, and the article provides usage examples, code snippets, and a link to the RFC.

BackendPHParray_is_list

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PHP 8.1 Introduces the array_is_list() Function

Top 10 New Features in PHP 8.1

PHP 8.1 Introduces the array_is_list() Function

PHP 8.1 Introduces the array_is_list() Function