Tag: php81 — Code Glossary

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Most referenced — #php81

Enum::cases() & Enum from()/tryFrom() 2 Intersection & DNF Types in Practice 1 readonly Properties (PHP 8.1) 1 callable vs Closure vs First-Class Callable 1 Enums Implementing Interfaces 1 Spread Operator in Arrays [...$a, ...$b] 1 Enums — First-Class Enumerations (PHP 8.1) 1 PHP Fibers — Internals & Scheduler Patterns 1

readonly Properties (PHP 8.1) 1 Fibers — Cooperative Concurrency (PHP 8.1) 1

Fibers — Cooperative Concurrency (PHP 8.1) 46 Fiber-Based Task Scheduler 32 PHP Fibers — Internals & Scheduler Patterns 31 Enums — First-Class Enumerations (PHP 8.1) 27 Enum::cases() & Enum from()/tryFrom() 23 Intersection & DNF Types in Practice 22 Enums Implementing Interfaces 21 callable vs Closure vs First-Class Callable 19

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Diagram: PHP Fibers — Internals & Scheduler Patterns

PHP Fibers — Internals & Scheduler Patterns PHP 8.1+

How PHP Fibers work under the hood — stack allocation, suspension mechanics, and how to build a cooperative multitasking scheduler on top of the Fiber API introduced in PHP 8.1.

2mo ago php advanced

Enums — First-Class Enumerations (PHP 8.1) PHP 8.1+

PHP 8.1 native enums replace class constant hacks — providing type-safe, enumerable, matchable values with optional backing values (: string or : int).

2mo ago php intermediate

Fibers — Cooperative Concurrency (PHP 8.1) PHP 8.1+

PHP 8.1 Fibers enable cooperative multitasking — suspending execution at yield points and resuming later — the foundation for async PHP frameworks without OS threads.

2mo ago php advanced

Intersection & DNF Types in Practice PHP 8.1+

PHP 8.1 intersection types (A&B) and PHP 8.2 DNF types ((A&B)|null) allow precise type constraints for objects implementing multiple interfaces.

2mo ago php advanced

Named Arguments in Attributes PHP 8.1+

PHP 8.1+ allows named arguments inside attribute constructors — #[Route(path: '/home', methods: ['GET'])] — making attribute usage self-documenting.

2mo ago php intermediate

readonly Properties (PHP 8.1) PHP 8.1+

PHP 8.1 readonly properties can only be written once (in the constructor) — enforcing immutability without verbose accessor boilerplate.

2mo ago php beginner

callable vs Closure vs First-Class Callable PHP 7.1+

PHP has three callable forms: loose callable (string/array), typed Closure, and PHP 8.1 first-class callables (strlen(...)) — prefer Closure or first-class callables for type safety.

2mo ago php intermediate

Constructor Promotion + readonly Together PHP 8.1+

PHP 8.1+ allows readonly in constructor promotion: public function __construct(public readonly string $name) — the cleanest way to write immutable value objects.

2mo ago php intermediate

Enum::cases() & Enum from()/tryFrom() PHP 8.1+

Backed enums provide from() (throws on miss) and tryFrom() (returns null) for value lookup, plus cases() to get all cases — essential for forms and validation.

2mo ago php intermediate

Enums Implementing Interfaces PHP 8.1+

PHP 8.1 enums can implement interfaces, allowing them to be used wherever an interface is expected — enabling polymorphic enum-based dispatch.

2mo ago php intermediate

Spread Operator in Arrays [...$a, ...$b] PHP 8.1+

PHP 8.1+ allows the spread operator ... inside array literals to merge arrays — cleaner than array_merge() for combining arrays inline.

2mo ago php beginner

Fiber-Based Task Scheduler PHP 8.1+

Building a cooperative multitasking scheduler with PHP Fibers — suspending and resuming tasks at I/O wait points to run multiple tasks concurrently in a single thread.

2mo ago php advanced