[dcolt]

Add LogContext and LogContextProcessor to attach tracked context to every log record. Each key holds a single value managed via set()/unset()/clear(), and the processor merges them into the record context unless overridden explicitly. Includes tests and README docs.

[sunkan]

Not really what I had in mind

I was more thinking of like this

class DoSomethingHandler {
    public function __construct(
        private RequestLogContext $logContecxt,
    ) {}

    public function __invoke($command) {
        $this->logContext->add('plate', $command->plate);
        .....
    }
}

class DoSomethingCronHandler {
    public function __construct(
        private RequestLogContext $logContecxt,
    ) {}

    public function __invoke($command) {
        $this->logContext->add('job', 'processing xxx');
        .....
        $this->logContext->remove('job', 'processing xxx');
    }
}

class AuthMiddleware {
    public function __construct(
        private RequestLogContext $logContecxt,
    ) {}

    public function handle(Request $request) {
        if (authenticated()) {
            $this->logContext->add('account', $account->id);
        }
....
    }
}

And there should probably be a log context contract that can be implemented so that we can create scoped log contexts and so forth.

[sunkan]

An other option would be

class DoSomethingHandler {
    public function __construct(
        #[LogContextScope('request')]
        private LogContext $logContecxt,
    ) {}

    public function __invoke($command) {
        $this->logContext->add('plate', $command->plate);
        .....
    }
}

class DoSomethingCronHandler {
    public function __construct(
        #[LogContextScope('cron')]
        private LogContext $logContecxt,
    ) {}

    public function __invoke($command) {
        $this->logContext->add('job', 'processing xxx');
        .....
        $this->logContext->remove('job', 'processing xxx');
    }
}

class AuthMiddleware {
    public function __construct(
        #[LogContextScope('request')]
        private LogContext $logContecxt,
    ) {}

    public function handle(Request $request) {
        if (authenticated()) {
            $this->logContext->add('account', $account->id);
        }
....
    }
}

[dcolt]

Of the two suggestions, I absolutely prefer the attribute variant.

Seems both more robust and flexible, but also cleaner.