This is a quick and easy method to generate a somewhat random password. This simply generates the MD5 hash for the integer returned by the time() function and then truncates it to the specific length.

Random Numbe

This multiple-use PHP script will randomly generate content based on a randomly generated number.

This little function does great for passwords, usernames, files, and anything else you need a random string for.

This php script provides a unique random key with 32 characters and can be used to avoid the system to pass some primary keys across the url, by example.

create a random string of 16 chars

This module is used to generate the unique number and self check the numbers in social security, band accounts and etc.

Here you can find detailed explanation:
http://www.eclectica.ca/howto/modulus-11-self-check.php?start=1&count=5&generate=Generate#calculator

I have made this scirpt generate numbers in drop down list and write brojevi.txt file that you can download with numbers you have generated...

Random String Generato

A very simple script to generate random hexa colors.
just modify line 36 to generate more/less colors.

Random String