> You are reading the Docusign Developer Documentation. For clean Markdown of any page, append .md to the page URL.
>
> Documentation indexes by section:
> - APIs and SDKs: https://docusign.docs.buildwithfern.com/docs/llms.txt
> - Platform 101: https://docusign.docs.buildwithfern.com/platform/llms.txt
> - Extension Apps: https://docusign.docs.buildwithfern.com/extension-apps/llms.txt
> - Docusign CLI: https://docusign.docs.buildwithfern.com/docusign-cli/llms.txt
>
> Authentication (OAuth, JWT Grant, M2M): https://docusign.docs.buildwithfern.com/platform/auth
> Webhooks and Connect: https://docusign.docs.buildwithfern.com/platform/webhooks
>
> OpenAPI specifications: https://docusign.docs.buildwithfern.com/openapi.json
> MCP server: https://docusign.docs.buildwithfern.com/_mcp/server

# PHP SDK

> Learn how the PHP SDK makes using Docusign APIs easier.

The PHP eSignature SDK is provided by Docusign to help PHP developers use the  [Docusign eSignature REST API](/docs/esign-rest-api). It is provided as both a  [Composer package](https://packagist.org/packages/docusign/esign-client/) and an [open source repo on GitHub](https://github.com/docusign/docusign-php-client). The PHP eSignature SDK is also used when developers opt to get started with the PHP [Quickstart](/docs/esign-rest-api/quickstart), which generates ready-to-use, personalized PHP code.

## Places to start

[Setup and configuration](/docs/esign-rest-api/sdks/php/setup-and-configuration)

[Authentication](/docs/esign-rest-api/sdks/php/auth)

[SDK reference](https://docusign.github.io/docusign-esign-php-client/)

## Compatibility

### The PHP SDK package is compatible with the following PHP versions:

* 8.2.35 (and any higher minor version).
* 8.3.36 (and any higher minor version).
* 8.4.27 (and any higher minor version).
* 8.5.12 and above.

## SDK versions

New versions of the SDK are released periodically to use the latest version of the [eSignature REST API](https://github.com/docusign/OpenAPI-Specifications/blob/master/esignature.rest.swagger-v2.1.json)  . SDK versions use the standard period-separated [semantic versioning](https://semver.org/) scheme. General release versions are of the form x.y.z, and release candidate (prerelease) versions are of the form x.y.z-rc.

The [SDK’s changelog file](https://github.com/docusign/docusign-php-client/blob/master/CHANGELOG.md)  lists each SDK update and its notable changes from the prior version.

Developers are not required to update their applications to new versions of the SDK unless there’s a specific reason to do so:

* Access to a new eSignature API feature or method
* An SDK bug fix including security-related issues
* To support an updated version of one of the SDK's dependencies

## SDK Issues

If you find any issues with the SDKs, you can open an issue on the [GitHub repo](https://github.com/docusign/docusign-php-client/issues) or reach out to [Support](https://support.docusign.com/s/contactSupport).