来看代码了!
无聊的时候瞎写的,欢迎大虾们指正
<br>
Common\NDV.php<br>
/**<br>
* NDV (Not complete Digital Visa)<br>
* 非完整数字签证<br>
*<br>
* +----------------------------------------------------+<br>
* * NDV(基础函数库文件),属于KSEF(Kee Simply Efficient Framework)项目扩展库函数<br>
* @author Kee <chinboy2012><br>
* @date 2012年12月10日<br>
* @version Alpha 1.0<br>
<br>
<br>
* +----------------------------------------------------+<br>
*/<br>
class NDV{<br>
private $Str_list = array();<br>
private $SafeStr = null;<br>
private $BinCode = null;<br>
private $Md5Code = null;<br>
private $Sh1Code = null;<br>
private $SafeCode = null;<br>
<br>
public function NDVa($str, $mode = 'NDV'){<br>
$this-> NDV_list($str);<br>
$this-> NDV_Safe_Add();<br>
$this-> NDV_4in1();<br>
if($mode == 'NDV'){<br>
//输出52位混合编码,默认选项<br>
return $this-> SafeCode;<br>
}elseif($mode == 'BIN'){<br>
//输出20位二进制校验码<br>
return $this-> BinCode;<br>
}elseif($mode == 'MD5'){<br>
//输出32为MD5校验码<br>
return $this-> Md5Code;<br>
}elseif($mode == 'SH1'){<br>
//输出32位Sh1校验码<br>
return $this-> Sh1Code;<br>
}<br>
}<br>
<br>
private function NDV_list($str) {<br>
$Str_Len = strlen($str); //计算字符串长度<br>
$Str_Arr = array(); //拆解字符串数组<br>
$Str_list = array(); //混序列表<br>
// $mod3 = $Str_Len%3; //模3值<br>
$Len3 = intval($Str_Len / 3); //除3取整<br>
$list = 0;<br>
<br>
//进行一次循环,拆解字符串,混序排列<br>
for ($i = 0, $x = 0; $i
$Str_Arr[$x] = md5(md5(substr($str, $i, 3)) . md5($str)); //拆解字符串,取字符串摘要获取64位混合编码<br>
//混序排列<br>
$this->BinCode .= $Str_Arr[$x] % 2;<br>
if ($Str_Arr[$x] % 2 == 1) {<br>
//如果模2值为1,则序列下沉<br>
$Str_list[$Len3] = $Str_Arr[$x];<br>
$Len3--;<br>
} elseif ($Str_Arr[$x] % 2 == 0) {<br>
//如果模2值为0,则序列上浮<br>
$Str_list[$list] = $Str_Arr[$x];<br>
$list++; <div class="clear">
</div></chinboy2012>
