note 114065 added to functions.arguments

"The default value must be a constant expression" is misleading (or even wrong). PHP 5.4.4 fails to parse this function definition: function htmlspecialchars_latin1($s, $flags = ENT_COMPAT | ENT_HTML401) {} This yields a " PHP Parse error: syntax error, unexpected '|', expecting ')' " although ENT_COMPAT|ENT_HTML401 is certainly what a compiler-affine person would call a "constant expression". The obvious workaround is to use a single special value ($flags = NULL) as the default, and to set it to the desired value in the function's body (if ($flags === NULL) { $flags = ENT_COMPAT | ENT_HTML401; }). ---- Server IP: 212.124.37.9 Probable Submitter: 129.217.43.100 ---- Manual Page -- http://php.net/manual/en/functions.arguments.php Edit -- https://master.php.net/note/edit/114065 Del: integrated -- https://master.php.net/note/delete/114065/integrated Del: useless -- https://master.php.net/note/delete/114065/useless Del: bad code -- https://master.php.net/note/delete/114065/bad+code Del: spam -- https://master.php.net/note/delete/114065/spam Del: non-english -- https://master.php.net/note/delete/114065/non-english Del: in docs -- https://master.php.net/note/delete/114065/in+docs Del: other reasons-- https://master.php.net/note/delete/114065 Reject -- https://master.php.net/note/reject/114065 Search -- https://master.php.net/manage/user-notes.php