Welcome to the Comprehensive Guide for Flagship PHP SDK!

This documentation is your one-stop resource for integrating Flagship into your PHP application. Our library comes with preconfigured methods designed to simplify the implementation of the Decision API or Bucketing Mode. So let's get started on enhancing your development experience with Flagship!

  • Installation: Step-by-step instructions to set up Flagship in your environment.
  • Quick Start: Get up and running with Flagship in no time.
  • Reference: Detailed API documentation for in-depth understanding.

SDK features

This version of the SDK lets you :


  • PHP : version 8.1 or later
  • php_curl extension must be enabled
  • json extension must be enabled
  • Composer : version 1.0.0 or later

Good to know

Github repository: https://github.com/flagship-io/flagship-php-sdk


The latest version of our Javascript SDK is 4.0.0.

Change logs

Find the versions change logs on our Github Repository

Former versions

The documentation of the past versions are available here.

Contact us

Feel free to contact us if you have any questions regarding this documentation.