Welcome

Fuse is a circuit breaker for PHP 8.2+. You wrap a call that talks to another system. When that system starts failing, Fuse stops calling it for a short time, then lets a few trial calls through to see if it has recovered.

The breaker does not know about HTTP clients. You pass it a callable. Optional adapters cover Saloon connectors and Laravel applications. Each adapter is independent, so the package runs with neither, with either, or with both.

#What you get

• Three states: closed, open, and half-open.
• A failure window, so a handful of old errors does not open the circuit forever.
• Half-open probes, so recovery is tested with a few calls instead of a flood.
• Pluggable storage: memory, Laravel cache, a database table, or any PSR-16 cache.
• CircuitOpenException when a call is rejected, before your code runs.

#Where to go next

You want to…	Read
Install it	Installation
Understand the states	How it works
Call it from plain PHP	Plain PHP
Use it in Laravel	Laravel
Protect a Saloon connector	Saloon
See every combination, end to end	Scenarios

Start with How it works if the words closed, open, and half-open are new. Start with Installation if you already know circuit breakers and want the package in a project.