note 97824 added to domdocument.getelementsbytagname

Hello, I'm not sure if my note is a support request, a feature request or an important observation due to lack of information. The getElementsByTagName method returns the NodeList of element nodes with the specified name. Ok, but what it returns if it doesn't find anything? What it returns if the parsed xml tag doesn't exist or if it doesn't have a value? Null? Empty string? Random value? I consider that this information is important and it should be included in the reference manual. A. Langueduc ---- Server IP: 69.147.83.197 Probable Submitter: 190.6.74.102 ---- Manual Page -- http://www.php.net/manual/en/domdocument.getelementsbytagname.php Edit -- https://master.php.net/note/edit/97824 Del: integrated -- https://master.php.net/note/delete/97824/integrated Del: useless -- https://master.php.net/note/delete/97824/useless Del: bad code -- https://master.php.net/note/delete/97824/bad+code Del: spam -- https://master.php.net/note/delete/97824/spam Del: non-english -- https://master.php.net/note/delete/97824/non-english Del: in docs -- https://master.php.net/note/delete/97824/in+docs Del: other reasons-- https://master.php.net/note/delete/97824 Reject -- https://master.php.net/note/reject/97824 Search -- https://master.php.net/manage/user-notes.php