note 75273 added to function.preg-match

Avoid codes from "Niklas Ã…kerlund " and "Fred Schenk " for checking e-mail (email) address. Both of them put hyphen "-" between square brackets this way: "[…+-=…]". It says "any character between + and = in ASCII table" that's for example "/" or "." or all digits. To insert "-" as a character, not operator, escape it with backslash "\". (Inside double quoted strings use double backslash "\\".) ---- Server IP: 69.147.83.197 Probable Submitter: 193.179.29.210 ---- Manual Page -- http://www.php.net/manual/en/function.preg-match.php Edit -- https://master.php.net/note/edit/75273 Del: integrated -- https://master.php.net/note/delete/75273/integrated Del: useless -- https://master.php.net/note/delete/75273/useless Del: bad code -- https://master.php.net/note/delete/75273/bad+code Del: spam -- https://master.php.net/note/delete/75273/spam Del: non-english -- https://master.php.net/note/delete/75273/non-english Del: in docs -- https://master.php.net/note/delete/75273/in+docs Del: other reasons-- https://master.php.net/note/delete/75273 Reject -- https://master.php.net/note/reject/75273 Search -- https://master.php.net/manage/user-notes.php