== PHP Libraries ==
=== [https://packagist.org/packages/hybridauth/hybridauth hybridauth/hybridauth] ===
http://hybridauth.sourceforge.net/userguide.html
{{{#!sh
$ composer require hybridauth/hybridauth
}}}
Google::
 * easy
[http://hybridauth.sourceforge.net/userguide/IDProvider_info_LinkedIn.html LinkedIn]::
 * easy
OpenID::
 * easy (no secret information needed)
[http://hybridauth.sourceforge.net/userguide/IDProvider_info_Yahoo.html Yahoo OpenID]::
 * https://github.com/hybridauth/hybridauth/tree/master/additional-providers/hybridauth-yahoo-openid
 * http://hybridauth.sourceforge.net/userguide/tuts/specific-provider-wrapper.html
 * https://login.yahoo.com/
 * a mobile phone number is required to register a new account
 * yahoo Application consumer key
[http://hybridauth.sourceforge.net/userguide/IDProvider_info_Live.html Microsoft Live]::
 * Not clear if the domain root URL can be used as redirect URI
 * Using the domain root URL as redirect URI results in an error at the time of clicking the icon on the registered web site
 * It is not possible to register inside Microsoft developper website a redirect URI similar to the one used for Google, because some caracteres are not accepted.
 * one could try to make a simpler redirection URI which would redirect to the one simililar to the one used for Google.
 * microsoft oauth2 application id
 * [https://msdn.microsoft.com/en-us/library/bb676626.aspx Getting Your Client ID for Web Authentication]
 * https://account.live.com
 * [https://account.live.com/developers/applications/index Mes applications]
[http://hybridauth.sourceforge.net/userguide/IDProvider_info_Facebook.html Facebook]
 * https://developers.facebook.com/apps needs a phone number (sound or text) or a credit card
||                                                                      || || || jessie (stable) || bpo || stretch (testing) || || /usr/share/php/ ||
|| [https://packagist.org/packages/composer/composer composer/composer]         || 2016-03-27 ||  b  ||     ||  ||  #  || [DebianPackage:composer] || Composer ||
|| [https://packagist.org/packages/hybridauth/hybridauth hybridauth/hybridauth] || 2016-01-12 || 2.6 ||     ||  ||     ||  ||  ||
|| [https://packagist.org/packages/psr/log psr/log]                             || 2012-12-21 || 1.0 || 1.0 ||  || 1.0 || [DebianPackage:php-psr-log] || Psr/Log ||
|| [https://packagist.org/packages/symfony/symfony symfony/symfony]             || 2016-02-28 || 3.0 || 2.3 ||  || 2.8 || [DebianPackage:php-symfony-framework-bundle] || Symfony/Bundle/FrameworkBundle ||
|| [https://packagist.org/packages/]  ||  ||  ||  ||  ||  || [DebianPackage:] || /usr/share/php/ ||
|| [https://packagist.org/packages/]  ||  ||  ||  ||  ||  || [DebianPackage:] || /usr/share/php/ ||
|| [https://packagist.org/packages/]  ||  ||  ||  ||  ||  || [DebianPackage:] || /usr/share/php/ ||
|| [https://packagist.org/packages/]  ||  ||  ||  ||  ||  || [DebianPackage:] || /usr/share/php/ ||
|| [https://packagist.org/packages/]  ||  ||  ||  ||  ||  || [DebianPackage:] || /usr/share/php/ ||
* [https://qa.debian.org/developer.php?login=pkg-php-pear@lists.alioth.debian.org Packages overview for Debian PHP PEAR Maintainers]
* [http://pkg-php.alioth.debian.org Debian PHP Group]