note 119582 added to language.variables.variable

While not relevant in everyday PHP programming, it seems to be possible to insert whitespace and comments between the dollar signs of a variable variable. All three comment styles work. This information becomes relevant when writing a parser, tokenizer or something else that operates on PHP syntax. <?php $foo = 'bar'; $ /* I am complete legal and will compile without notices or error as a variable variable. */ $foo = 'magic'; echo $bar; // Outputs magic. ?> Behaviour tested with PHP Version 5.6.19 ---- Server IP: 72.52.91.14 Probable Submitter: 85.23.54.84 ---- Manual Page -- http://php.net/manual/en/language.variables.variable.php Edit -- https://master.php.net/note/edit/119582 Del: integrated -- https://master.php.net/note/delete/119582/integrated Del: useless -- https://master.php.net/note/delete/119582/useless Del: bad code -- https://master.php.net/note/delete/119582/bad+code Del: spam -- https://master.php.net/note/delete/119582/spam Del: non-english -- https://master.php.net/note/delete/119582/non-english Del: in docs -- https://master.php.net/note/delete/119582/in+docs Del: other reasons-- https://master.php.net/note/delete/119582 Reject -- https://master.php.net/note/reject/119582 Search -- https://master.php.net/manage/user-notes.php