note 70768 added to userlandnaming.rules

I have been using a single underscore, followed by 2 or 3 uppercase letters, followed by another underscore, to name my globals, e.g. "_XYZ_someFunction()". Is the leading single underscore something that is not future-proof? ---- Server IP: 66.163.161.117 Probable Submitter: 24.71.223.141 (proxied: 68.144.75.73) ---- Manual Page -- http://www.php.net/manual/en/userlandnaming.rules.php Edit -- https://master.php.net/note/edit/70768 Del: integrated -- https://master.php.net/note/delete/70768/integrated Del: useless -- https://master.php.net/note/delete/70768/useless Del: bad code -- https://master.php.net/note/delete/70768/bad+code Del: spam -- https://master.php.net/note/delete/70768/spam Del: non-english -- https://master.php.net/note/delete/70768/non-english Del: in docs -- https://master.php.net/note/delete/70768/in+docs Del: other reasons-- https://master.php.net/note/delete/70768 Reject -- https://master.php.net/note/reject/70768 Search -- https://master.php.net/manage/user-notes.php