php 字符串与二进制字符串的转换
作者:admin 日期:2018-07-23
PHP代码
- <?php
- header("Content-type:text/html;charset=utf-8");
- /**
- * 将字符串转换成二进制
- * @param type $str
- * @return type
- */
- function StrToBin($str){
- //1.列出每个字符
- $arr = preg_split('/(?<!^)(?!$)/u', $str);
- //2.unpack字符
- foreach($arr as &$v){
- $temp = unpack('H*', $v);
- $v = base_convert($temp[1], 16, 2);
- unset($temp);
- }
- return join(' ',$arr);
- //return $arr;
- }
- /**
- * 讲二进制转换成字符串
- * @param type $str
- * @return type
- */
- function BinToStr($str){
- $arr = explode(' ', $str);
- foreach($arr as &$v){
- $v = pack("H".strlen(base_convert($v, 2, 16)), base_convert($v, 2, 16));
- }
- return join('', $arr);
- }
- echo StrToBin("php二次开发:www.php2.cc");;
- echo '<br/>';
- echo BinToStr("1110000 1101000 1110000 111001001011101010001100 111001101010110010100001 111001011011110010000000 111001011000111110010001 111011111011110010011010 1110111 1110111 1110111 101110 1110000 1101000 1110000 110010 101110 1100011 1100011");
- ?>
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