radom_password.php

<?php
function randomPassword($len=8)
{
    $chars = 'abcdefghijlmnopqrstuvxyzkw123456789';
    $numChars = strlen($chars);

    $pwd = '';
    for ($i=0; $i<$len; $i++)
    {
      $pwd .= substr($chars, rand(1, $numChars) - 1, 1);
    }

    return $pwd;
}