yes it does, thanks

Can you verify that this fixes it for you?

Changes have been made in Git (master):

commit 6f245104fbfc02bceb5707c31600fffe183ab058
Author: Michael J Rubinsky <mrubinsk@horde.org>
Date:   Thu Aug 20 12:22:52 2015 -0400

     Bug: 14090  Closures do not have full access to the $this scope 
prior to 5.4

     While we can give it access to $this by assigning it to another
     variable, that variable does not have access to non-public members.

  .../Crypt/lib/Horde/Crypt/Pgp/Backend/Binary.php   |    6 +++++-
  1 files changed, 5 insertions(+), 1 deletions(-)

http://github.com/horde/horde/commit/6f245104fbfc02bceb5707c31600fffe183ab058

To clarify, the issue isn't with the $this directly, since we work 
around that by assigning $this to another variable that IS accessible. 
The issue is that we can't access the protected member from THAT 
reference.

Easiest solution for now is probably to just make that method public.

The INSTALL docs say it is HIGHLY RECOMMENDED to  use 5.4+. Being 
compatible with the API does not equal assurances that issues resolved 
in later versions will work correctly in Horde when still using 
earlier versions.

That being said, I was under the impression that it was *supposed* to 
work under 5.3.x and was a bug in PHP that it did not. However, I now 
see that the PHP docs state that it wasn't added until 5.4.

Assigning this to the maintainer of that code for further review.

ok, well apparently this is only supported in >= 5.4 (see [0] and [1]).

one would expect that you announce that from now on 5.3 is not 
supported anymore and remove the sentence "Although the PHP 5.3 API is 
supported," from [2], or not?

since until right now we never saw a single incompatibility with 5.3....


[0] http://stackoverflow.com/questions/5734011/php-5-4-closure-this-support
[1] https://3v4l.org/neHqH
[2] http://www.horde.org/apps/horde/docs/INSTALL

Sorry, I meant to say to upgrade PHP. This was recently discussed on 
the mailing list somewhere. This is probably due to you having a PHP 
version that didn't properly support the "$this" reference inside of 
closures.

Please upgrade your install.

PHP Fatal error:  Call to protected method 
Horde_Crypt_Pgp_Backend_Binary::_callGpg() from context '' in 
pear/php/Horde/Crypt/Pgp/Backend/Binary.php on line 155