Guide to Writing PHP login with Facebook

To do write code to sign in with Facebook, you need to have APP ID and APP SECRET.

>> How to Create application on Facebook.com

To use this app you need to download the SDK Facebook: http://developers.facebook.com/docs/reference/php/download/

Refer to the API documentation of Facebook:

- API Example: http://developers.facebook.com/docs/reference/php/facebook-api/

- GRAPH API: http://developers.facebook.com/docs/reference/api/

- Permission Detail: http://developers.facebook.com/docs/authentication/permissions/

- FQL: http://developers.facebook.com/docs/reference/fql/

Put the following code to PHP files to be processed log

  <? Php
 require 'facebook / facebook.php';
 $ FbPermissions = 'email, publish_stream, user_photos';
 $ Facebook = new Facebook (array (
   'AppID' => '510685512391982',
   'Secret' => '76ef9a5f323613670fe1f1d0f1f0dffd'
   'FileUpload' => true,
   'Cookie' => true
 ));
 $ User = $ facebook-> getUser ();
 if ($ user)
 {
     tRY
     {
         $ User_profile = $ facebook-> api ( '/ me');
         if (! empty ($ user_profile))
         {
             $ User_id = $ user_profile [ 'id'];
             // The processing your login here offline
         }
     }
     catch (FacebookApiException $ e)
     {
          $ User = null;
     }
 }
 else
 {
     $ LoginUrl = $ facebook-> getLoginUrl (array ( 'scope' => $ fbPermissions));    
 }
 ?>
 <Div class = "sign-in-bound">   
     <H4 class = "subtitle"> </ h4>
         <P> <b> Click the button below to log in with your Facebook account.  Your account will be created automatically after the first login without registration. </ B> </ p>
         <br clear="all">
         <Div align = "center"> <a href="<?php echo $loginUrl;?> "> <img src =" skins / news / images / loginfacebook.png "> </a> </ div>
         <br clear="all">        
         <P>
             <B> You can also log in with an account registered in Goccuoi.net.  If you do not have
             account, <a href="dang-ky.html" </a> style="text-decoration:underline"> register here. </ b> </ p>
        <Div class = "log-input" style = "margin-top: 18px;">
         <Form name = "SignInForm" method = "post">
             <Div>
               <Label for = "user_id"> Name </ label> <span class = "required"> * </ span> </ div>
             <Input name = "user_id" type = "text" id = "user_id" class = "input">
             <Div> <label for = "password"> Password </ label> <span class = "required"> * </ span> </ div>
             <Input name = "password" type = "password" id = "password" class = "input">
             <Div>
                 <Input name = "save_password" type = "checkbox" id = "save_password">
                 <Label for = "save_password"> Automatically login next time </ label>
             </ Div>
             <Div style = "margin-left: -4px; margin-top: -10px;">
             <Input class = "search-button" type = "submit" value = "Login">
             Forgot your password <a href="quen-mat-khau.html"> </a>
             </ Div>
        </ Form>    
        </ Div>
 </ Div>

If you have any questions, please comment down below for inquiries