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pecl install openswoole-22.1.2 | composer require openswoole/core:22.1.5
<?php OpenSwoole\Coroutine::getPcid(int $cid = 0)
Coroutine ID. By default, getting the parent coroutine ID of the current coroutine.
Coroutine ID.
Get the parent coroutine ID of a coroutine by coroutine ID.
<?php
co::run(function () {
echo OpenSwoole\Coroutine::getPcid();
});