How can I concatenate these values and perform an md5 calculation

Question

I have some values:

$data1
$data2
$data3

I want to concatenate these variables and then perform an md5 calculation how is it done??

score 7 · Answer 1 · edited Jun 08 '10 at 12:05

7

echo md5($data1.$data2.$data3);

Gordon

answered Jun 08 '10 at 11:57

Pekka

What to do if the order shouldn't affect the output ? – Subin Sep 09 '17 at 19:29
@Subin here's a related C# question, maybe it helps https://stackoverflow.com/questions/670063/getting-hash-of-a-list-of-strings-regardless-of-order – Pekka Sep 10 '17 at 08:35
1

Thanks. I solved it by sorting the datas and then hash it. – Subin Sep 10 '17 at 08:44

score 2 · Accepted Answer · answered Jun 08 '10 at 11:56

2

md5($data1 . $data2 . $data3);

answered Jun 08 '10 at 11:56

hudolejev

score 1 · Answer 3 · answered Jun 08 '10 at 11:56

1

If your values are strings it's pretty easy

md5($data1 . $data2 . $data3);

If they are not string you need to first convert them.

answered Jun 08 '10 at 11:56

RaYell

score 1 · Answer 4 · answered Jun 08 '10 at 12:04

1

If your vars are no simple strings, but maybe objects or arrays you could go like this:

md5(serialize($data1 . $data2 . $data3));

answered Jun 08 '10 at 12:04

faileN

4 Answers4