PHP 8.1 RFC: Fibers

Fibers
New Feature
PHP 8.1
Implemented
Fibers

RFC Vote: Fibers

Implemented
 - 
>= 2/3
Yes: 50No: 14

Fibers is a new feature in PHP 8.1 that brings lightweight and controlled concurrency to PHP.

In essence, a Fiber is a code block that maintains its own stack (variables and state), that can be started, suspended, or terminated cooperatively by the main code and the Fiber.

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