Mod rewrite, need to allow only letters, numbers and white spaces
问题 Since I need to allow my users, to search strings with white spaces, I need to modify this rewrite rule (lighttpd engine). "^/(results)/(query)/([0-9a-zA-Z_]+)$" => "index.php?action=results&query=$3", To allow only letters, numbers and white spaces (I guess only those are needed to search some data from MySQL?). Thank you in advance. 回答1: Whitespace in regex is \s "^/(results)/(query)/([0-9a-zA-Z_\s]+)$" => "index.php?action=results&query=$3" or "^/(results)/(query)/([\w\d\s_]+)$" => "index