php 加密解密小程序 php 加密解密小程序php 加密解密小程序，按键盘顺序重新排序字母表$subject=$_GET['s']; $replace = ['a'=>'q','b'=>'w','c'=>'e','d'=>'r','e'=>'t','f'=>'y','g'=>'u','h'=>'i','i'=>'o','j'=>'p','k'=>'a', 'l'=>'s','m'=>'d','n'=>'f','o'=>'g','p'=>'h','q'=>'j','r'=>'k','s'=>'l','t'=>'z','u'=>'x', 'v'=>'c','w'=>'v','x'=>'b','y'=>'n','z'=>'m']; $encrypt=strtr($subject, $replace); $decrypt=strtr($encrypt, array_flip($replace)); echo '加密：'.$encrypt; echo '解密：'.$decrypt; //输入abcdefg //输出 加密：qwertyu解密：abcdefg

使用php blenc扩展加密php源代码 使用php blenc扩展加密php源代码使用php blenc扩展加密php源代码，不但可以加密源代码，还可以设置过期时间。扩展地址 http://pecl.php.net/package/blenc注意：不要启用opcache扩展，否则加密后的代码无法正常运行。要加密的源码不需要<?php 及?>开始与结束标记可指定个人密钥。可指定一个BLENC模块过期日期。 你可以决定BLENC 模块将工作到一个日期。之后,BLENC不会解密任何文件.这些都可以在头文件 blenc_protect.h中设置，设置好后再编译BLENC.用法：http://cn2.php.net/manual/en/function.blenc-encrypt.php安装用phpize安装 phpize ./configure make make install.注意，如果安装后，访问php出现500错误，请试着打开 php.ini中的expose_php=On;安装扩展后，要使以下文件可写：/usr/local/etc/blenckeys具体加密用法文件：<?php$file='en.php';$file_name = basename($file);$unencrypted_key='itvyyb';$source_code = file_get_contents($file);$html='';const TARGET_DIR='/Library/WebServer/Documents/';//This covers old-asp tags, php short-tags, php echo tags, and normal php tags.$contents = preg_replace(array('/^<(\?|\%)\=?(php)?/', '/(\%|\?)>$/'), array('',''), $source_code);//echo $contents;exit;$html .= "<br> BLENC blowfish unencrypted key: $unencrypted_key" . PHP_EOL;$html .= "<br> BLENC file to encode: " . $file_name . PHP_EOL;//file_put_contents('blencode-log', "---\nFILE: $file_name\nSIZE: ".strlen($contents)."\nMD5: ".md5($contents)."\n", FILE_APPEND);$redistributable_key = blenc_encrypt($contents, TARGET_DIR . '/blenc/' . $file_name, $unencrypted_key);$html .= "<br> BLENC size of content: " . strlen($contents) . PHP_EOL;/**Server keykey_file.blenc*/file_put_contents(TARGET_DIR . '/blenc/' . 'key_file.blenc', $redistributable_key . PHP_EOL);$html .= " BLENC redistributable key file key_file.blenc updated." . PHP_EOL;exec("cat key_file.blenc >> /usr/local/etc/blenckeys");echo $html;?>另一个php加密扩展https://github.com/liexusong/php-beast和这个差不多。php-beast 加密代码使用方法如下，在cli下运行<?phpfunction getext($file) {$list = explode('.', $file);return strtolower($list[count($list)-1]);}function encrypt_project($project, $new_project) {$project = rtrim($project, '/');$new_project = rtrim($new_project, '/');if (!file_exists($new_project)) {if (!mkdir($new_project)) {printf("[failed] failed to call `mkdir()' function\n");return false;}}$hdl_o = opendir($project);$hdl_n = opendir($new_project);if (!$hdl_o || !$hdl_n) {if ($hdl_o) closedir($hdl_o);if ($hdl_n) closedir($hdl_n);printf("[failed] failed to call `opendir()' function\n");return false;}while (($file = readdir($hdl_o)) !== false) {if ($file == '.' || $file == '..') {continue;}$path = $project.'/'.$file;if (is_dir($path)) {encrypt_project($path, $new_project.'/'.$file);} elseif (is_file($path) && getext($file) == 'php') {beast_encode_file($path, $new_project.'/'.$file);} else {copy($path, $new_project.'/'.$file);}}closedir($hdl_o);closedir($hdl_n);return true;}$stdin = fopen("php://stdin", "r");$stdout = fopen("php://stdout", "w");if (!$stdin || !$stdout) {if ($stdin) fclose($stdin);if ($stdout) fclose($stdout);exit("[failed] failed to open I/O stream\n");}fwrite($stdout, "Please enter project path: ");$project = fgets($stdin);$project = trim($project);fwrite($stdout, "Please enter output project path: ");$new_project = fgets($stdin);$new_project = trim($new_project);$start = time();fwrite($stdout, "Encrypting...\n");encrypt_project($project, $new_project); / encrypt project /$spend = time() - $start;fwrite($stdout, "Finish encrypt, spend {$spend} seconds.\n");?>good:<?php/**FileName: encrypt_project.phpDesc: php源码加密Author: LenixEmail: yangyb@itv.cnHomePage: http://www.itv.com.cnVersion: 1.0LastChange: 2015-08-03 13:34:56History:*/function getext($file) {$list = explode('.', $file);return strtolower($list[count($list)-1]);}function encrypt_project($project, $new_project) {$unencrypted_key='itvyyb';//个人密钥$project = rtrim($project, '/');$new_project = rtrim($new_project, '/');if (!file_exists($new_project)) {if (!mkdir($new_project)) {printf("错误，不能调用 `mkdir()' 函数\n");return false;}}$hdl_o = opendir($project);$hdl_n = opendir($new_project);if (!$hdl_o || !$hdl_n) {if ($hdl_o) closedir($hdl_o);if ($hdl_n) closedir($hdl_n);printf("错误，不能调用`opendir()' 函数\n");return false;}while (($file = readdir($hdl_o)) !== false) {if ($file == '.' || $file == '..') {continue;}$path = $project.'/'.$file;if (is_dir($path)) {encrypt_project($path, $new_project.'/'.$file);} elseif (is_file($path) && getext($file) == 'php') {$source_code = file_get_contents($path);$contents = preg_replace(array('/^<(\?|\%)\=?(php)?/', '/(\%|\?)>$/'), array('',''), $source_code);$redistributable_key = blenc_encrypt($contents, $new_project.'/'.$file, $unencrypted_key);file_put_contents( 'key_file.blenc', $redistributable_key . PHP_EOL);$dir=dirname(__FILE__);exec("cat $dir/key_file.blenc >> /usr/local/etc/blenckeys");} else {copy($path, $new_project.'/'.$file);}}closedir($hdl_o);closedir($hdl_n);return true;}$stdin = fopen("php://stdin", "r");$stdout = fopen("php://stdout", "w");if (!$stdin || !$stdout) {if ($stdin) fclose($stdin);if ($stdout) fclose($stdout);exit("错误，不能打开 I/O 流\n");}fwrite($stdout, "请输入项目路径");$project = fgets($stdin);$project = trim($project);fwrite($stdout, "请输入加密后项目路径: ");$new_project = fgets($stdin);$new_project = trim($new_project);$start = time();fwrite($stdout, "加密ing...\n");encrypt_project($project, $new_project);$spend = time() - $start;fwrite($stdout, "完成加密, 用时 {$spend} 秒.\n");?>