Introduction

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- PHP Manual
- Event
- Introduction

# Introduction

This is an extension to efficiently schedule I/O, time and signal based events using the best I/O notification mechanism available for specific platform. This is a port of libevent to the PHP infrastructure.

> Note:

> Note, Windows support introduced in `event-1.9.0` .

Version 1.0.0 introduces new object-oriented API (breaking backwards compatibility), and support of libevent 2+ including HTTP, DNS, OpenSSL and the event listener.

> Note:

> Note, `event-1.0.0` and greater is not compatible with previous versions.