Returns the form encoded version of a given string.
Form encoding is the same as normal URL encoding, except that spaces are replaced by plus characters.
Note that newlines should always be represented as \r\n sequences according to the HTTP standard.
string allowed_chars = null
Jan Krüger, Sönke Ludwig
© 2012-2015 RejectedSoftware e.K.
Subject to the terms of the MIT license, as written in the included LICENSE.txt file.