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php encryption/decryption function

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Release： 2016-07-25 08:44:11
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php encryption/decryption function
Encryption/decryption function
Usage
var_dump(Fun::Jmen('aah',$_ENV['Only']));
var_dump(Fun::Jmun('ADYAsVzEX94%3D',$ _ENV['Only']));
Parameters:
$str: str type, content that needs to be encrypted or decrypted
$key: str type, key (the encryption and decryption keys must be the same)
Return:
str type , decrypted or decrypted content
  1. /**
  2. Encryption/decryption function
  3. Usage
  4. var_dump(Fun::Jmen('aah',$_ENV['Only']));
  5. var_dump(Fun::Jmun('ADYAsVzEX94%3D',$_ENV['Only' ]));
  6. Parameters:
  7. $str: str type, the content that needs to be encrypted or decrypted
  8. $key: str type, key (the encryption and decryption keys must be the same)
  9. Return:
  10. str type, decryption or decryption completed The content of
  11. /**/
  12. public static function Jmen($str,$key){
  13. $encrypt_key=md5(mt_rand(0,100));$ctr=0;$tmp='';
  14. for ($i=0;$i
  15. if($ctr==strlen($encrypt_key)){$ctr=0;}$tmp.=substr($encrypt_key,$ctr ,1).(substr($str,$i,1) ^ substr($encrypt_key,$ctr,1));$ctr++;
  16. }
  17. unset($encrypt_key,$ctr,$str);
  18. return rawurlencode( base64_encode(self::_m_($tmp,$key)));
  19. }
  20. public static function Jmun($str,$key){
  21. $txt=self::_m_(base64_decode(rawurldecode($str)),$ key);$tmp='';
  22. for($i=0;$i
  23. unset($txt,$md5,$str,$key);
  24. return $tmp;
  25. }
  26. private static function _m_($txt, $key){
  27. $key=md5($key);$ctr=0;$tmp='';
  28. for($i=0;$i
  29. return $tmp;
  30. }
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Related labels：
php加密/解密函數
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