The amqp tools such as delay strategies and so on.

A generic library to retry an operation in case of an error. You can configure the behavior like the exceptions to retry on.

Form interaction spam blocker. Works everywhere on your server and no setup required.

可以查看独立版，不依赖swoole，url：/~https://github.com/yupeng2015/soen-delay-alone

TYPO3 CMS extension to improve TYPO3's mail spooler with additional components

🌀 Teleport to the hub with a delay.

Package which helps you to delay (sleep) your code for some time.

Queue Repeat Manager to RabbitMQ.

Aviation Delay Codes

Timer:Timer not is a marker, delay dispatch library for PHP

Provides a delay action to rules, to help reduce resource usage in Backdrop CMS

Exponential backoff to delay for Symfony2 bundle for PHP

定时延迟优先级任务处理系统

Easy to use 3rd party drip-feed plug-in for Paid Memberships Pro

This module allow you to display the shipping delay by product