Validating email address php
Authenticating users properly is important to their and your safety and security, and using well-debugged code written by others is generally a best practice. Authenticating the user involves obtaining an ID token and validating it.
ID tokens are a standardized feature of Open ID Connect designed for use in sharing identity assertions on the Internet.
To get help on Stack Overflow, tag your questions with 'google-oauth'.
Note: If you want to provide a "Sign-in with Google" button for your website or app, we recommend using Google Sign-In, our sign-in client library that is built on the Open ID Connect protocol and provides Open ID Connect formatted ID Tokens.
Google's OAuth 2.0 APIs can be used for both authentication and authorization.
This document describes our OAuth 2.0 implementation for authentication, which conforms to the Open ID Connect specification, and is Open ID Certified.
Note: Given the security implications of getting the implementation correct, we strongly encourage you to take advantage of a pre-written library or service.
To set up your project's consent screen, do the following: The following consent dialog shows what a user would see when a combination of OAuth 2.0 and Google Drive scopes are present in the request.
(This generic dialog was generated using the Google OAuth 2.0 Playground, so it does not include branding information that would be set in the API Console.) Google and third parties provide libraries that you can use to take care of many of the implementation details of authenticating users and gaining access to Google APIs.
The implicit flow is significantly more complicated because of security risks in handling and using tokens on the client side.
If you need to implement an implicit flow, we highly recommend using Google Sign-In.