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Editorial Team
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Asked: 2026-06-10T19:51:46+00:00

I am not asking to solve my problem but yes to give me some

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I am not asking to solve my problem but yes to give me some hints on what should I look for or where should I focus in, in order to get this accomplished.

The problem is my website has his own registration system and I don’t know how to join it with facebook’s. Visitors should be able to login in both ways, but I have no idea how to do it.

I have followed this guide: http://25labs.com/tutorial-integrate-facebook-connect-to-your-website-using-php-sdk-v-3-x-x-which-uses-graph-api/

But it gives me error in my site, and I can’t login using facebook. Any advise on this.
I don’t know what I should do yet. My website is written in php.

This is the page where I have tried it:
http://www.dtraffic.biz/demo/index.php

The tutorial author say I should look the error_log to see which is the problem but when I look this through my cpanel account nothing appears there.

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1 Answer

  1. Editorial Team

    Here some tips.

    You have to add a new field in your userlist database. Example:

    Database userlist, we add facebook-id field, so:
id    |    nick    |    passw    |    facebook-id
-------------------------------------------------
1     |    Llorx   |    mypass   |
2     |   Llorx12  |    mypass   |

    And then implement Facebook PHP SDK, you can follow Facebook tutorial.

    When an user logins using Facebook, you can ask to create a new account or to link his Facebook account to his existing account in your web, in both cases, you have to fill the database facebook-id with his Facebook id (You can get that info with Facebook graph API after authentication)

    id    |    nick    |    passw    |    facebook-id
-------------------------------------------------
1     |    Llorx   |    mypass   |    19348317401
2     |   Llorx12  |    mypass   |

    Now, each time someone logs in using Facebook, you can check if his Facebook id is linked to any account in your database.

    Sorry for my bad english :-/

    If the error you get is error 500, you have some code wrong written, or maybe Facebook API is throwing an error too, try catching it and print_f it so you know what’s happening.

    Another tip: Facebook exceptions are called FacebookApiException instead of Exception

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