note 92591 added to migration53.incompatible

"The behaviour of functions with by-reference parameters called by value has changed. Where previously the function would accept the by-value argument, a warning is now emitted and all by-ref parameters are set to NULL." I find this ambiguous/difficult to understand. "The behaviour of functions with by-reference parameters..." Ok. This is a function "with by-reference parameters..." <?php function a( &$param ){ } ?> "..called by value has changed. Where previously the function would accept the by-value argument" Ok. This is "would accept the by-value argument..." <?php a(2); //2 is a literal ?> But this is illegal even in 5.2. So, I suppose this what is meant by "..called by value..." <?php a($someVariable); ?> "a warning is now emitted and all by-ref parameters are set to NULL" So, this would cause a warning, and all by-ref paramaters are set to NULL? Thanks ---- Server IP: 69.147.83.197 Probable Submitter: 112.202.76.1 ---- Manual Page -- http://www.php.net/manual/en/migration53.incompatible.php Edit -- https://master.php.net/note/edit/92591 Del: integrated -- https://master.php.net/note/delete/92591/integrated Del: useless -- https://master.php.net/note/delete/92591/useless Del: bad code -- https://master.php.net/note/delete/92591/bad+code Del: spam -- https://master.php.net/note/delete/92591/spam Del: non-english -- https://master.php.net/note/delete/92591/non-english Del: in docs -- https://master.php.net/note/delete/92591/in+docs Del: other reasons-- https://master.php.net/note/delete/92591 Reject -- https://master.php.net/note/reject/92591 Search -- https://master.php.net/manage/user-notes.php