note 93035 added to language.references.pass

There appears to be no information on how to handle optional pass-by-parameters so I'm posting an example, in which these optional values are defaulted to NULL, as follows: function test_ref ($a, $b = NULL) { if (is_null($b) === false) { $b = "Value set"; return; } print "No value set"; } test without parameter: { $a = "test"; test_ref($a); } outputs: No value set test with parameter: { $a = "test"; $b = "test"; test_ref($a, $b); print $b; } outputs: Value set ---- Server IP: 87.124.86.46 Probable Submitter: 87.194.35.152 (proxied: 87.194.35.152) ---- Manual Page -- http://www.php.net/manual/en/language.references.pass.php Edit -- https://master.php.net/note/edit/93035 Del: integrated -- https://master.php.net/note/delete/93035/integrated Del: useless -- https://master.php.net/note/delete/93035/useless Del: bad code -- https://master.php.net/note/delete/93035/bad+code Del: spam -- https://master.php.net/note/delete/93035/spam Del: non-english -- https://master.php.net/note/delete/93035/non-english Del: in docs -- https://master.php.net/note/delete/93035/in+docs Del: other reasons-- https://master.php.net/note/delete/93035 Reject -- https://master.php.net/note/reject/93035 Search -- https://master.php.net/manage/user-notes.php