Error in PHP form
A web form which has worked perfectly in the past now shows the following error message above a radio button input field:
Notice: Only variable references should be returned by reference in C:\Program Files (x86)\FileMaker\FileMaker Server\Web Publishing\publishing-engine\php\FileMaker\Implementation\LayoutImpl.php on line 37
Link to the form: http://forms.danahall.org/apply/app_int.php
Is this error because of a change within the server environment or in the way the PHP code is being processed?