Random Password Generation in php

This is a simple function to Generate random passwords in php applications



     /**
     * random password generator
     * @return type
     * @author Arun George <arun@arun-g.in>
     * @since 30-09-2013
     */
    public function randomPassword()
    {
        $Inputs = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
        $password = array(); //declare $password as an array
        $aLength = strlen($Inputs) - 1; //put the length -1 in cache
        for ($i = 0; $i < 8; $i++)
        {
            $num = rand(0, $aLength);
            $password[] = $Inputs[$num];
        }
        return implode($password); //turn the array into a string
    }