discuz password encryption method_PHP tutorial

The discuz password encryption method is recorded here.

When discuz registers, the password will be encrypted according to a rule.
For example, my password is 123456
echo md5("123456");

will output:
e10adc3949ba59abbe56e057f20f883e

The value in the database is:
7839dc9437013b5c11a5d86e9b8350e9

Note:
There is a field called salt, its value is: d82a35
In fact, this is a random string.
The value after the first md5 plus the salt value (salt) and then md5 is the value to be obtained.
Test: www.jbxue.com
echo md5(md5('123456').'d82a35');

This time the result is: 7839dc9437013b5c11a5d86e9b8350e9, which is correct.
In versions prior to php5.5, there was no good encryption mechanism. This is a good way to go. Password security has been greatly enhanced.
There is a more reliable and convenient encryption method in php5.5.

Extension:
password_hash()
http://www.php.net/manual/zh/function.password-hash.php

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