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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

** Changed in: mahara/16.10
       Status: In Progress => Fix Committed

** Changed in: mahara/16.04
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1574716

Title:
  Fatal error in lib/form/elements/ratings.php

Status in Mahara:
  Fix Committed
Status in Mahara 16.04 series:
  Fix Committed
Status in Mahara 16.10 series:
  Fix Committed

Bug description:
  When loading a portfolio in 16.04RC2, a white screen is encountered,
  and the following is written to the error log. This also occurred in
  16.04RC1.

  [25-Apr-2016 09:26:36] PHP Fatal error:  Can't use function return value in write context in /home/darren/public_html/m1604rc2/lib/form/elements/ratings.php on line 71
  [25-Apr-2016 09:26:36] PHP Stack trace:
  [25-Apr-2016 09:26:36] PHP   1. {main}() /home/darren/public_html/m1604rc2/view/view.php:0
  [25-Apr-2016 09:26:36] PHP   2. pieform() /home/darren/public_html/m1604rc2/view/view.php:221
  [25-Apr-2016 09:26:36] PHP   3. Pieform::process() /home/darren/public_html/m1604rc2/lib/mahara.php:4493
  [25-Apr-2016 09:26:36] PHP   4. Pieform->__construct() /home/darren/public_html/m1604rc2/lib/pieforms/pieform.php:161
  [25-Apr-2016 09:26:36] PHP   5. Pieform->include_plugin() /home/darren/public_html/m1604rc2/lib/pieforms/pieform.php:406

  This occurs on RHEL6, with PHP 5.3.3

  [darren@swiftly m1604rc2]$ php -v
  PHP 5.3.3 (cli) (built: Jul  3 2015 03:10:33) 
  Copyright (c) 1997-2010 The PHP Group
  Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
      with Xdebug v2.1.4, Copyright (c) 2002-2012, by Derick Retinas

  This can be resolved by removing the !empty() on lines 48, 58, and 71
  - see attached patch.

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