Passwords
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<?php
/**
* @desc Daily Random Password Generator
* @author B3NZ0 Email: http://www.zend.com/mail_to.php?id=B3NZ0
*
* @param int $pass_len The length of the password
* @param bool $pass_num Include numeric chars in the password?
* @param bool $pass_alpha Include alpha chars in the password?
* @param bool $pass_mc Include mixed case chars in the password?
* @param string $pass_exclude Chars to exclude from the password
* @return string The password
*/
function make_daily_password($pass_len = 8, $pass_num = true, $pass_alpha = true, $pass_mc = true, $pass_exclude = '')
{
// Create the salt used to generate the password
$salt = '';
if ($pass_alpha) { // a-z
$salt .= 'abcdefghijklmnopqrstuvwxyz';
if ($pass_mc) { // A-Z
$salt .= strtoupper($salt);
}
}
if ($pass_num) { // 0-9
$salt .= '0123456789';
}
// Remove any excluded chars from salt
if ($pass_exclude) {
$exclude = array_unique(preg_split('//', $pass_exclude));
$salt = str_replace($exclude, '', $salt);
}
$salt_len = strlen($salt);
// Seed the random number generator with today's seed & password's unique settings for extra randomness
mt_srand ((int) date('y')*date('z')*($salt_len+$pass_len));
// Generate today's random password
$pass = '';
for ($i=0; $i<$pass_len; $i++) {
$pass .= substr($salt, mt_rand() % $salt_len, 1);
}
return $pass;
}
?>
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Usage Example
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<?
// Configure Password
// Passwords length
$pass_len = 8;
// Use numbers?
$pass_num = true;
// Use letters? (e.g. abcde)
$pass_alpha = true;
// Use mixed case? (e.g. AbcaBc)
$pass_mc = true;
// Exclude any chars from password? (e.g. oO0iI1l)
$pass_exclude = 'oO0iI1l';
// Generate password
echo $pass = make_daily_password($pass_len, $pass_num, $pass_alpha, $pass_mc, $pass_exclude);
?>
Example passwords:
QjWyUhKB
wx6YfbFj
rNWUtxHF
40361508
62855903
43738579
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