Home  >  Article  >  php教程  >  PHP 转 ASCII

PHP 转 ASCII

PHP中文网
PHP中文网Original
2016-05-25 17:15:271218browse

跳至

<?php 
class ascii
{

function decode($str)
{
    preg_match_all( "/(d{2,5})/", $str,$a);
    $a = $a[0];
     foreach ($a as $dec)
     {
         if ($dec < 128)
         {
            $utf .= chr($dec);
         }
         else if ($dec < 2048)
        {
            $utf .= chr(192 + (($dec - ($dec % 64)) / 64));
            $utf .= chr(128 + ($dec % 64));
         }
         else
         {
            $utf .= chr(224 + (($dec - ($dec % 4096)) / 4096));
            $utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
            $utf .= chr(128 + ($dec % 64));
         }
     }
     return $utf;
}

function encode($c)
{
    $len = strlen($c);
    $a = 0;
     while ($a < $len)
     {
        $ud = 0;
         if (ord($c{$a}) >=0 && ord($c{$a})=192 && ord($c{$a})=224 && ord($c{$a})=240 && ord($c{$a})=248 && ord($c{$a})=252 && ord($c{$a})=254 && ord($c{$a}) encode("a");


?>

                   

Statement:
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