There are 2 repositories under opentelemetry-php topic.
The OpenTelemetry PHP Library
Instant OpenTelemetry instrumentation for Laravel applications.
This package provides a simple way to add OpenTelemetry to your Laravel application.
Traces, metrics, and logs instrumentation within your Symfony application
A Slim test with OpenTelemetry PHP
Observability with Drupal example: OpenTelemetry Traces, Logs, Metrics
[WIP] Symfony Demo app with OpenTelemetry Bundle
OpenTelemetry Community Demo Application
OpenTelemetry PHP Auto-Instrumentation for Heroku
Created for following along with OTLP user testing document