Home > Backend Development > PHP Tutorial > Code for simple compression of English strings implemented in PHP_PHP Tutorial

Code for simple compression of English strings implemented in PHP_PHP Tutorial

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-07-21 15:51:53
Original
772 people have browsed it

PHP, suitable for posting simple encrypted ciphertext

Copy code The code is as follows:

//replacement encrypted replacement from the previous version

function compress_func($match) {return strlen($match[0]).$match[0]{0};}

function uncompress_func($match) {return str_repeat($match[2], $match[1]);}

function compress($str) {
$i = 0;
         $pattern = array(); > return preg_replace_callback($pattern, "compress_func", $str);
}

function uncompress($str) {
return preg_replace_callback("/(d+)(w)/", " uncompress_func", $str);
}
?>


AWK, common format



Copy code The code is as follows:
#!/bin/awk
function compress(str, _ARGVEND_, str_out, str_len, i, s, l) {
str_out = "";
str_len = length(str);
s = "";
l = 1;
for(i =1; i <= str_len; i++) {
if(substr( str, i, 1) == s) l++;             str_out= str_out""s; Return str_out;
}
function uncompress(str, _ARGVEND_, str_out, str_len, i, c) {
str_out = "";
str_len = length(str);
for(i =1; i <= str_len; i++) {
c = 0;
while(substr(str, i, 1)~/[0-9]/) {
c = c*10+substr(str, i, 1) ; i ++;
}
if (c & lt; 1) C = 1;
While (C--) str_out = str_out "" substr (str, i, 1);
}
return str_out;
}





http://www.bkjia.com/PHPjc/319046.html

www.bkjia.com

true

http: //www.bkjia.com/PHPjc/319046.html

TechArticle
PHP, adapted to the simple encrypted ciphertext copy code of the above post, the code is as follows: ?php //replacement comes from above A version of the encrypted replacement functioncompress_func($match){returnstrlen($match[0]).$mat...

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Issues
php data acquisition?
From 1970-01-01 08:00:00
0
0
0
PHP extension intl
From 1970-01-01 08:00:00
0
0
0
How to learn php well
From 1970-01-01 08:00:00
0
0
0
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template