chain/string

Composer 安装命令：


                            composer require chain/string

包简介

Library of _Chain_ links for string processing.

#_String_ ####Library of _Chain_ links for string processing.

_Length_ Get the length of a string.
_Lowercase_ Make a string lowercase.
_ShannonEntropy_ Estimate the average minimum number of bits needed to encode a string of symbols based on the alphabet size and the frequency of the symbols.
_Uppercase_ Make a string uppercase.
_Whitespace_ Reduce substrings containing more than one whitespace to a single whitespace. By default, leading and trailing whitespaces are also removed.
Whitespaces include tab, newline, and linebreak characters.