Method decrypt

testsql.php:73–92

* 解密 */

($encrypted)

     * 解密
     */
    function decrypt($encrypted){
     $encrypted = base64_decode($encrypted); //如需转换二进制可改成 bin2hex 转换
     $key = str_pad($this->key,8,'0'); //3DES加密将8改为24
     $td = mcrypt_module_open(MCRYPT_DES,'',MCRYPT_MODE_CBC,'');//3DES加密将MCRYPT_DES改为MCRYPT_3DES
     if( $this->iv == '' )
     {
      $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
     }
     else
     {
      $iv = $this->iv;
     }
     $ks = mcrypt_enc_get_key_size($td);
     @mcrypt_generic_init($td, $key, $iv);
     $decrypted = mdecrypt_generic($td, $encrypted);
     mcrypt_generic_deinit($td);
     mcrypt_module_close($td);
     $y=$this->pkcs5_unpad($decrypted);
     return $y;
    }
    function pkcs5_pad ($text, $blocksize) {
     $pad = $blocksize - (strlen($text) % $blocksize);
     return $text . str_repeat(chr($pad), $pad);