RE: [PHP-DB] Random Password problem

[Bastien Koert]

and my version
function change_password($id, $password)
{
	//generate a random password
	$pass = "";
	$salt = "abchefghjkmnpqrstuvwxyz0123456789";
	srand((double)microtime()*1000000);
			$i = 0;
			while ($i <= 7) {
						$num = rand() % 33;
						$tmp = substr($salt, $num, 1);
						$pass = $pass . $tmp;
						$i++;
			}
	//change the password in the db
	$sql = "update cust_info set cust_pw	='".md5($pass)."', temp_pass = 1 where 
cust_lg = '$id' and cust_pw = '$password'";
	$result = connect($sql);
	if ($result){
		return $pass;
	}else{
		change_password($id, $password);
	}

bastien
From: "Wendell Frohwein" <[EMAIL PROTECTED]>
To: "'J. Connolly'" <[EMAIL PROTECTED]>,"'PHP list'" <php-db@lists.php.net>
Subject: RE: [PHP-DB] Random Password problem
Date: Tue, 8 Mar 2005 11:51:59 -0800
This is one I like to use jozef.
function generate_password($length = 10) {
  $allowable_characters = "abcdefghjkmnopqrstuvwxyz23456789";
  $ps_len = strlen($allowable_characters);
  mt_srand((double)microtime()*1000000);
  $pass = "";
  for($i = 0; $i < $length; $i++) {
   $pass .= $allowable_characters[mt_rand(0,$ps_len-1)];
  }
return $pass;
}
Its been working well for me for sometime.

-Wendell Frohwein
-----Original Message-----
From: J. Connolly [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 08, 2005 11:41 AM
To: PHP list
Subject: [PHP-DB] Random Password problem
I am using this php in order to create, store and send random passwords
to people who want to join my mailing list.
<?php
function random_password () {
$seed = (integer) md5(microtime());
mt_srand($seed);
$password = mt_rand(1,99999999);
$password = substr(md5($password), 3,9);
return $password;
}
?>
<?php
$msg = random_password();
echo $msg;
?>
I seem to be getting the same number very often which makes me fear that
this is not so random. I am a noob so I do not know if this is
coincidence or a fault in my coding.
Right now, I have been setting up passwords manually, but would like
users to be as free from me as possible. Any direction would be helpful.
BTW, I keep getting the following number an absurd amount of times. I
have deleted cookies and even gone to other machines, and yet it still
generates this number.
8f31a3
Thank you,
jozef
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