[PHP] Hot to MD5 two values (Valu1+Valu2)

[Radwan Aladdin]

Hi all..

I want to know..

Can I use :

$md5 = md5($variable1 + $variable2);

Is it right to use that?

Notice : I don't want "&" I want to add the first value to the second one(1=2=3).. 
then make them MD5...MD5(3) (For example)..

Regards..