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Microsoft Correlation Vector PHP

Microsoft-CorrelationVector-PHP provides the PHP implementation of the CorrelationVector protocol for tracing and correlation of events through a distributed system.

Background

Correlation Vector (a.k.a. cV) is a format and protocol standard for tracing and correlation of events through a distributed system based on a light weight vector clock. The standard is widely used internally at Microsoft for first party applications and services and supported across multiple logging libraries and platforms (Services, Clients - Native, Managed, Js, iOS, Android etc). The standard powers a variety of different data processing needs ranging from distributed tracing & debugging to system and business intelligence, in various business organizations.

For more on the correlation vector specification and the scenarios it supports, please refer to the specification repo.

Installation

composer install friendlydev/microsoft-correlationvector-php

Usage

use MicrosoftCV\CorrelationVector;

$ms_cv = CorrelationVector::createCorrelationVector();

print 'Initial vector: ' . $ms_cv->value();
print 'Next iteration: ' . $ms_cv->increment();

Requirements

  • PHP >= 8.1

License

GNU General Public License v3.0

Authors

Based on the implementation by Microsoft:

https://github.com/search?q=org%3Amicrosoft+correlationVector

https://github.com/Microsoft/Telemetry-Client-for-Android/blob/master/AndroidCll/src/main/java/com/microsoft/cll/android/CorrelationVector.java