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1. tWH
   Member
   Posted 1 year ago #

   Hi!

   I'm trying to implement the Facebook php sdk in a WordPress template, but I just can't get it to work. The supplied example.php works without problems, but the same code in a template doesn't. I boiled the problem down to the getSession() method, which simply always returns null.

   Since example.php works i figure the problem is somehow related to WordPress. I really can't think of any reason why it shouldn't work in WordPress.

   Any ideas?

2. tWH
   Member
   Posted 1 year ago #

   I've found a temporary solution. In getSession() the following rows remove backslashes only if get_magic_quotes_gpc() is true:
   

   parse_str(trim(
      get_magic_quotes_gpc()
           ? stripslashes($_COOKIE[$cookieName])
           : $_COOKIE[$cookieName],
       '"'
   ), $session);

   However, for some reason backslashes in the cookie are added despite get_magic_quotes_gpc() being false. Thus changing the above rows to:
   

   parse_str(trim(
       stripslashes($_COOKIE[$cookieName]),
       '"'
   ), $session);

   solves the problem. I'm not sure though whether not not this creates any other problems.

3. scchu
   Member
   Posted 1 year ago #

   Hi tWH,

   Thank you for the finding. That solved my two days of agony.

   On my PHP install, "magic_quotes_gpc" is off by default. And it seems like it will be deprecated in future versions of PHP.

   I implemented a similar solution except that I check for it:

   parse_str(trim(
       function_exists( "get_magic_quotes_gpc" )
         ? stripslashes($_COOKIE[$cookieName])
         : $_COOKIE[$cookieName],
       '"'
     ), $session);

   That way the code is more portable for different environments where we simply can't know the status of "get_magic_quotes_gpc".

   Thanks again!

4. scchu
   Member
   Posted 1 year ago #

   Actually what I posted is not idea either.

   It turns out this is an issue with WordPress' internal wp_magic_quotes() function screwing with facebook php-sdk.

   So what I did instead was to turn force turn on magic_quotes_gpc for wordpress only.

   To do that, at the root of WordPress director, create a .htaccess file (if there isn't already one). And paste the follow code to force it on.

   php_flag magic_quotes_gpc on

   Cheers...

5. David Cowgill
   Member
   Posted 1 year ago #

   tWH, thanks so much for the fix! I've spent the last two days trying to figure out why the cookie was correctly being set but the session was always null.

   I guess we'll have to go with your hack until Facebook fixes this so it works correctly with WordPress.

   ~David

6. lruellan
   Member
   Posted 1 year ago #

   I'm having the exact same issue! Thanks for coming up with a solution.

   Lothaire

7. ellebillias
   Member
   Posted 7 months ago #

   I'm having similar problems! But in my php.ini file magic quotes is set to on by default

   magic_quotes_gpc on

   what would I use to make the Facebook getSession() work on my WordPress?

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