Example: App authentication with a PHP server

This example uses a PHP server to implement app authenticationApp authentication is a type of authentication that grants a short-lived access token based on an OAuth 2.0 client ID and client secret, authorizing an application to access ArcGIS services and items.Learn more. The server uses a client ID and client secret to request an access tokenAn access token is an authorization string that provides access to secure ArcGIS content, data, and services. Its capabilities are determined by the privileges it supports. It is obtained by implementing API key authentication, User authentication, or App authentication.Learn more, then sends the access token to a client application.

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The associated JavaScript client is required for a complete demonstration.