php数字加密解密的程序,PHP完成把数字ID转字母ID

by admin on 2019年3月9日

<?php
/**
* article
url:
*
* Translates a number to a short alhanumeric version
*
* Translated any number up to 9007199254740992
* to a shorter version in letters e.g.:
* 9007199254740989 –> PpQXn7COf
*
* specifiying the second argument true, it will
* translate back e.g.:
* PpQXn7COf –> 9007199254740989
*
* this function is based on any2dec && dec2any by
* fragmer[at]mail[dot]ru
* see:
*
* If you want the alphaID to be at least 3 letter long, use the
* $pad_up = 3 argument
*
* In most cases this is better than totally random ID generators
* because this can easily avoid duplicate ID’s.
* For example if you correlate the alpha ID to an auto incrementing
ID
* in your database, you’re done.
*
* The reverse is done because it makes it slightly more cryptic,
* but it also makes it easier to spread lots of IDs in different
* directories on your filesystem. Example:
* $part1 = substr($alpha_id,0,1);
* $part2 = substr($alpha_id,1,1);
* $part3 = substr($alpha_id,2,strlen($alpha_id));
* $destindir = “/”.$part1.”/”.$part2.”/”.$part3;
* // by reversing, directories are more evenly spread out. The
* // first 26 directories already occupy 26 main levels
*
* more info on limitation:
* –

*
* if you really need this for bigger numbers you probably have to
look
* at things like:
* or:
* but I haven’t really dugg into this. If you have more info on those
* matters feel free to leave a comment.
*
* The following code block can be utilized by PEAR’s Testing_DocTest
* <code>
* // Input //
* $number_in = 2188847690240;
* $alpha_in = “SpQXn7Cb”;
*
* // Execute //
* $alpha_out = alphaID($number_in, false, 8);
* $number_out = alphaID($alpha_in, true, 8);
*
* if ($number_in != $number_out) {
* echo “Conversion failure, “.$alpha_in.” returns “.$number_out.”
instead of the “;
* echo “desired: “.$number_in.”\n”;
* }
* if ($alpha_in != $alpha_out) {
* echo “Conversion failure, “.$number_in.” returns “.$alpha_out.”
instead of the “;
* echo “desired: “.$alpha_in.”\n”;
* }
*
* // Show //
* echo $number_out.” => “.$alpha_out.”\n”;
* echo $alpha_in.” => “.$number_out.”\n”;
* echo alphaID(238328, false).” => “.alphaID(alphaID(238328, false),
true).”\n”;
*
* // expects:
* // 2188847690240 => SpQXn7Cb
* // SpQXn7Cb => 2188847690240
* // aaab => 238328
*
* </code>
*
* @author Kevin van Zonneveld <kevin@vanzonneveld.net>
* @author Simon Franz
* @author Deadfish
* @author SK83RJOSH
* @copyright 2008 Kevin van Zonneveld ()
* @license New BSD
Licence
* @version SVN: Release: $Id: alphaID.inc.php 344 2009-06-10 17:43:59Z
kevin $
* @link
*
* @param mixed $in String or long input to translate
* @param boolean $to_num Reverses translation when true
* @param mixed $pad_up Number or boolean padds the result up to a
specified length
* @param string $pass_key Supplying a password makes it harder to
calculate the original ID
*
* @return mixed string or long
*/
function alphaID($in, $to_num = false, $pad_up = false, $pass_key =
null)
{
$out = ”;
$index =
‘abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ’;
$base = strlen($index);

ID是网站中平时出现的,它一般是数字,然而大家发现未来的网站很多ID都以字母了,比如YouTube的摄像播放页它的UCRUISERL类似/watch?v=yzNjIBEdyww。
上面是一个生成字母ID的法子。
接纳示例:

<?php
/**
php数字加密解密的程序,PHP完成把数字ID转字母ID。 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016/11/1
 * Time: 12:26
 */
/*把数字转换来字符对应解析
 * @param mixed   $in    String or long input to translate
 * @param boolean $to_num  Reverses translation when true
 *php数字加密解密的程序,PHP完成把数字ID转字母ID。 @param mixed   $pad_up  Number or boolean padds the result up to a
specified length
 * @param string  $passKey Supplying a password makes it harder to
calculate the original ID
 */
function alphaID($in, $to_num = false, $pad_up = false, $passKey =
null)
{
    $index =
“abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ”;
    if ($passKey !== null) {
        // Although this function’s purpose is to just make the
        // ID short – and not so much secure,
        // with this patch by Simon Franz ()
        // you can optionally supply a password to make it harder
        // to calculate the corresponding numeric ID

不知晓您放在心上了从未,类似优酷、腾讯录制等其余录制链接就好像类似那样的

if ($pass_key !== null) {
// Although this function’s purpose is to just make the
// ID short – and not so much secure,
// with this patch by Simon Franz ()
// you can optionally supply a password to make it harder
// to calculate the corresponding numeric ID

复制代码 代码如下:

        for ($n = 0; $n<strlen($index); $n++) {
            $i[] = substr(
$index,$n ,1);
        }

复制代码 代码如下:

for ($n = 0; $n < strlen($index); $n++) {
$i[] = substr($index, $n, 1);
}

   阿尔法ID(12354);  //会将数字转换为字母。
   阿尔法ID(‘PpQXn7COf’,true);//会将字母ID转换为相应的数字。
   alphaID(12354,false,6);//钦定生成字母ID的长短为6.

        $passhash = hash(‘sha256’,$passKey);
        $passhash = (strlen($passhash) < strlen($index))
            ? hash(‘sha512’,$passKey)
            : $passhash;

$pass_hash = hash(‘sha256’,$pass_key);
$pass_hash = (strlen($pass_hash) < strlen($index) ? hash(‘sha512’,
$pass_key) : $pass_hash);

源码:

        for ($n=0; $n < strlen($index); $n++) {
            $p[] =  substr($passhash, $n ,1);
        }

注意id_xxx那段,是或不是看不懂了,但你无可否认那些便是id,那不外国的一个人牛人早在09年就写了针对PHP/Python/Javascript/Java/SQL的成形方法,可见笔者明天是何等的倒退,上面小编把代码贴出来,希望享受精神永存。

for ($n = 0; $n < strlen($index); $n++) {
$p[] = substr($pass_hash, $n, 1);
}

复制代码 代码如下:

        array_multisort($p,  SORT_DESC, $i);
        $index = implode($i);
    }

复制代码 代码如下:

array_multisort($p, SORT_DESC, $i);
$index = implode($i);
}

<?php
/**
 * Translates a number to a short alhanumeric version
 *
 * Translated any number up to 9007199254740992
 * to a shorter version in letters e.g.:
 * 9007199254740989 –> PpQXn7COf
 *
 * specifiying the second argument true, it will
 * translate back e.g.:
 * PpQXn7COf –> 9007199254740989
 *
 * this function is based on any2dec && dec2any by
 * fragmer[at]mail[dot]bf88必发唯一官网,ru
 * see:
 *
 * If you want the alphaID to be at least 3 letter long, use the
 * $pad_up = 3 argument
 *
 * In most cases this is better than totally random ID generators
 * because this can easily avoid duplicate ID’s.
 * For example if you correlate the alpha ID to an auto incrementing
ID
 * in your database, you’re done.
 *
 * The reverse is done because it makes it slightly more cryptic,
 * but it also makes it easier to spread lots of IDs in different
 * directories on your filesystem. Example:
 * $part1 = substr($alpha_id,0,1);
 * $part2 = substr($alpha_id,1,1);
 * $part3 = substr($alpha_id,2,strlen($alpha_id));
 * $destindir = “/”.$part1.”/”.$part2.”/”.$part3;
 * // by reversing, directories are more evenly spread out. The
 * // first 26 directories already occupy 26 main levels
 *
 * more info on limitation:
 * –

 *
 * if you really need this for bigger numbers you probably have to
look
 * at things like:
 * or:
 * but I haven’t really dugg into this. If you have more info on
those
 * matters feel free to leave a comment.
 *
 * @author  Kevin van Zonneveld <kevin@vanzonneveld.net>
 * @author  Simon Franz
 * @author  Deadfish
 * @copyright 2008 Kevin van Zonneveld
()
 * @license   New
BSD Licence
 * @version   SVN: Release: $Id: alphaID.inc.php 344 2009-06-10
17:43:59Z kevin $
 * @link   
 *
 * @param mixed   $in    String or long input to translate
 * @param boolean $to_num  Reverses translation when true
 * @param mixed   $pad_up  Number or boolean padds the result up to a
specified length
 * @param string  $passKey Supplying a password makes it harder to
calculate the original ID
 *
 * @return mixed string or long
 */
function alphaID($in, $to_num = false, $pad_up = false, $passKey =
null)
{
  $index =
“abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ”;
  if ($passKey !== null) {
    // Although this function’s purpose is to just make the
    // ID short – and not so much secure,
    // with this patch by Simon Franz ()
    // you can optionally supply a password to make it harder
    // to calculate the corresponding numeric ID

    $base  = strlen($index);

<?php
/** 
 * @author   Kevin van Zonneveld <kevin@vanzonneveld.net>
 * @author   Simon Franz
 * @author   Deadfish
 * @copyright 2008 Kevin van Zonneveld
()
 * @license   New
BSD Licence
 * @version   SVN: Release: $Id: alphaID.inc.php 344 2009-06-10
17:43:59Z kevin $
 * @link  
 *
 * @param mixed   $in      String or long input to translate
 * @param boolean $to_num  Reverses translation when true
 * @param mixed   $pad_up  Number or boolean padds the result up to a
specified length
 * @param string  $passKey Supplying a password makes it harder to
calculate the original ID
 *
 * @return mixed string or long
 */
function alphaID($in, $to_num = false, $pad_up = false, $passKey =
null)
{
  $index =
“abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ”;
  if ($passKey !== null) {
      // Although this function’s purpose is to just make the
      // ID short – and not so much secure,
      // with this patch by Simon Franz ()
      // you can optionally supply a password to make it harder
      // to calculate the corresponding numeric ID
 
      for ($n = 0; $n<strlen($index); $n++) {
          $i[] = substr( $index,$n ,1);
      }
 
      $passhash = hash(‘sha256’,$passKey);
      $passhash = (strlen($passhash) < strlen($index))
          ? hash(‘sha512’,$passKey)
          : $passhash;
 
      for ($n=0; $n < strlen($index); $n++) {
          $p[] =  substr($passhash, $n ,1);
      }
 
      array_multisort($p,  SORT_DESC, $i);
      $index = implode($i);
  }
 
  $base  = strlen($index);
 
  if ($to_num) {
      // Digital number  < 0) {
              $out -= pow($base, $pad_up);
          }
      }
      $out = sprintf(‘%F’, $out);
      $out = substr($out, 0, strpos($out, ‘.’));
  } else {
      // Digital number  –>>  alphabet letter code
      if (is_numeric($pad_up)) {
          $pad_up–;
          if ($pad_up > 0) {
              $in += pow($base, $pad_up);
          }
      }
 
      $out = “”;
      for ($t = floor(log($in, $base)); $t >= 0; $t–) {
          $bcp = bcpow($base, $t);
          $a   = floor($in / $bcp) % $base;
          $out = $out . substr($index, $a, 1);
          $in  = $in – ($a * $bcp);
      }
      $out = strrev($out); // reverse
  }
 
  return $out;
}

if ($to_num) {
// Digital number <<– alphabet letter code
$len = strlen($in) – 1;

    for ($n = 0; $n<strlen($index); $n++) {
      $i[] = substr( $index,$n ,1);
    }

    if ($to_num) {
        // Digital number  <<–  alphabet letter code
        $in  = strrev($in);
        $out = 0;
        $len = strlen($in) – 1;
        for ($t = 0; $t <= $len; $t++) {
            $bcpow = bcpow($base, $len – $t);
            $out   = $out + strpos($index, substr($in, $t, 1)) *
$bcpow;
        }

运用举例

for ($t = $len; $t >= 0; $t–) {
$bcp = bcpow($base, $len – $t);
$out = $out + strpos($index, substr($in, $t, 1)) * $bcp;
}

    $passhash = hash(‘sha256’,$passKey);
    $passhash = (strlen($passhash) < strlen($index))
      ? hash(‘sha512’,$passKey)
      : $passhash;

        if (is_numeric($pad_up)) {
            $pad_up–;
            if ($pad_up > 0) {
                $out -= pow($base, $pad_up);
            }
        }
        $out = sprintf(‘%F’, $out);
        $out = substr($out, 0, strpos($out, ‘.’));
    } else {
        // Digital number  –>>  alphabet letter code
        if (is_numeric($pad_up)) {
            $pad_up–;
            if ($pad_up > 0) {
                $in += pow($base, $pad_up);
            }
        }

复制代码 代码如下:

if (is_numeric($pad_up)) {
$pad_up–;

    for ($n=0; $n < strlen($index); $n++) {
      $p[] =  substr($passhash, $n ,1);
    }

        $out = “”;
        for ($t = floor(log($in, $base)); $t >= 0; $t–) {
            $bcp = bcpow($base, $t);
            $a   = floor($in / $bcp) % $base;
            $out = $out . substr($index, $a, 1);
            $in  = $in – ($a * $bcp);
        }
        $out = strrev($out); // reverse
    }

<?php
alphaID(9007199254740989);

if ($pad_up > 0) {
$out -= pow($base, $pad_up);
}
}
} else {
// Digital number –>> alphabet letter code
if (is_numeric($pad_up)) {
$pad_up–;

    array_multisort($p,  SORT_DESC, $i);
    $index = implode($i);
  }

    return $out;
}
$str =  alphaID(“1245”);
echo $str.”<br/>”;
echo  alphaID($str,true);

实施结果将被再次来到“fE2XnNGpF”,我们得以把它认为是加密,实行反解密则

if ($pad_up > 0) {
$in += pow($base, $pad_up);
}
}

  $base  = strlen($index);

复制代码 代码如下:

for ($t = ($in != 0 ? floor(log($in, $base)) : 0); $t >= 0; $t–) {
$bcp = bcpow($base, $t);
$a = floor($in / $bcp) % $base;
$out = $out . substr($index, $a, 1);
$in = $in – ($a * $bcp);
}
}

  if ($to_num) {
    // Digital number  <<–  alphabet letter code
    $in  = strrev($in);
    $out = 0;
    $len = strlen($in) – 1;
    for ($t = 0; $t <= $len; $t++) {
      $bcpow = bcpow($base, $len – $t);
      $out   = $out + strpos($index, substr($in, $t, 1)) * $bcpow;
    }

<?php
alphaID(‘fE2XnNGpF’, true);

return $out;
}

    if (is_numeric($pad_up)) {
      $pad_up–;
      if ($pad_up > 0) {
        $out -= pow($base, $pad_up);
      }
    }
    $out = sprintf(‘%F’, $out);
    $out = substr($out, 0, strpos($out, ‘.’));
  } else {
    // Digital number  –>>  alphabet letter code
    if (is_numeric($pad_up)) {
      $pad_up–;
      if ($pad_up > 0) {
        $in += pow($base, $pad_up);
      }
    }

那便是说就转换来真实的数字“9007一九九三54740989”。方法还是能够支撑接纳key实行加密,使得外人不能够解得你实际的ID。

    $out = “”;
    for ($t = floor(log($in, $base)); $t >= 0; $t–) {
      $bcp = bcpow($base, $t);
      $a   = floor($in / $bcp) % $base;
      $out = $out . substr($index, $a, 1);
      $in  = $in – ($a * $bcp);
    }
    $out = strrev($out); // reverse
  }

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  return $out;
}

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