摩斯电码加密解密demo
<?phpnamespace common\helpers;/** * 摩斯明码加密解密 * * @author wangjian * @since 0.1 */class Morse{ /** * @var array 摩斯默认配置 */ protected static $option = [ 'space'=> '/', 'short'=> '.', 'long'=> '-' ]; /** * @var array 摩斯明码转换 */ protected static $standard = [ 'A' => '01', 'B' => '1000', 'C' => '1010', 'D' => '100', 'E' => '0', 'F' => '0010', 'G' => '110', 'H' => '0000', 'I' => '00', 'J' => '0111', 'K' => '101', 'L' => '0100', 'M' => '11', 'N' => '10', 'O' => '111', 'P' => '0110', 'Q' => '1101', 'R' => '010', 'S' => '000', 'T' => '1', 'U' => '001', 'V' => '0001', 'W' => '011', 'X' => '1001', 'Y' => '1011', 'Z' => '1100', '0' => '11111', '1' => '01111', '2' => '00111', '3' => '00011', '4' => '00001', '5' => '00000', '6' => '10000', '7' => '11000', '8' => '11100', '9' => '11110', '.' => '010101', ',' => '110011', '?' => '001100', '\'' => '011110', '!' => '101011', '/' => '10010', '(' => '10110', ')' => '101101', '&' => '01000', ' =>' => '111000', ';' => '101010', '=' => '10001', '+' => '01010', '-' => '100001', '_' => '001101', '"' => '010010', '$' => '0001001', '@' => '011010', ]; /** * @var null 莫斯转换后果 */ protected static $standardReverse = null; /** * 默认参数配置 */ protected static function defaultOption($option = null ) { $option = $option || []; return [ isset($option['space']) ? $option['space'] : self::$option['space'], isset($option['short']) ? $option['short'] : self::$option['short'], isset($option['long']) ? $option['long'] : self::$option['long'] ]; } /** * 按utf宰割字符串 */ protected static function mbStrSplit($str) { $len = 1; $start = 0; $strlen = mb_strlen($str); while ($strlen) { $array[] = mb_substr($str,$start,$len,"utf8"); $str = mb_substr($str, $len, $strlen,"utf8"); $strlen = mb_strlen($str); } return $array; } /** * Unicode字符转换成utf8字符 */ protected static function unicodeToUtf8($unicode_str) { $utf8_str = ''; $code = intval(hexdec($unicode_str)); //这里留神转换进去的code肯定得是整形，这样才会正确的按位操作 $ord_1 = decbin(0xe0 | ($code >> 12)); $ord_2 = decbin(0x80 | (($code >> 6) & 0x3f)); $ord_3 = decbin(0x80 | ($code & 0x3f)); $utf8_str = chr(bindec($ord_1)) . chr(bindec($ord_2)) . chr(bindec($ord_3)); return $utf8_str; } protected static function charCodeAt($str, $index) { $char = mb_substr($str, $index, 1, 'UTF-8'); if (mb_check_encoding($char, 'UTF-8')) { $ret = mb_convert_encoding($char, 'UTF-32BE', 'UTF-8'); return hexdec(bin2hex($ret)); } else { return null; } } /** * 摩斯码转文本 */ protected static function morseHexUnicode($mor) { $mor = bindec($mor); if(!$mor) { return ''; } else { $mor = dechex ($mor); } return self::unicodeToUtf8($mor); } /** * unicode转二进制 */ public static function unicodeHexMorse($ch) { $r = []; $length = mb_strlen($ch, 'UTF8'); for($i = 0; $i < $length; $i++) { $r[$i] = substr(('00'. dechex(self::charCodeAt($ch,$i))), -4); } $r = join('',$r); return base_convert (hexdec($r), 10, 2); } /** * 加密摩斯电码 */ public static function encode($text, $option = null) { $option = self::defaultOption($option); // 默认参数 $morse = []; // 最终的 morse 后果 //删除空格，转大写，宰割为数组 $text = self::mbStrSplit( strtoupper(str_replace(' ', '', $text))); foreach($text as $key => $ch) { $r = @self::$standard[$ch]; if(!$r) { $r = self::unicodeHexMorse($ch); // 找不到，阐明是非规范的字符，应用 unicode。 } $morse[] = str_replace('1', $option[2], str_replace('0', $option[1], $r)); } return join( $option[0], $morse); } /** * 解密摩斯电码 */ public static function decode($morse, $option = null) { if( self::$standardReverse === null) { foreach(self::$standard as $key => $value) { self::$standardReverse[$value] = $key; } } $option = self::defaultOption($option); $msg = []; $morse = explode($option[0], $morse); // 宰割为数组 foreach($morse as $key =>$mor) { $mor = str_replace(' ', '', $mor); $mor = str_replace($option[2], '1', str_replace( $option[1], '0', $mor)); $r = @self::$standardReverse[$mor]; if(!$r) { $r = self::morseHexUnicode($mor); // 找不到，阐明是非规范字符的 morse，应用 unicode 解析形式。 } $msg[] = $r; } return join( '', $msg); }}
摩斯电码加密：
$txt = ''//须要加密的字符$morse = Morse::encode($txt);
摩斯电码解密：
$morse = ''//须要解密的摩斯电码$morse = Morse::decode($morse);
实例如下：
$txt = '测试';$morse = Morse::encode($txt);echo $morse . "<br/>";$txt = Morse::decode($morse);echo $txt;
输出后果如下：