String handling

I´m creating a password-check using a password stored in a database. I would like to create this password automaticly from 2 strings, i.e.

$string1="123"
$string2="abc"

Which command attaches the second string to the first so that

$string3="123abc" ?

THX

$string3 = $string1.$string2;

Hope this helps
Darren

It didn´t seam to work, but I forgot to mention that $string1 is an Integer !!!

Hope somebody can help...
THX

$str3 = (string) $str1.$str2;

What error did you get?

PHP stores all variables as strings internally, and it does not have any problem concatenating a string and an integer.

Read Chapter 10 of the PHP manual, entitled "Operators."