Random password...

[rIkLuNd]

How should I do to generate a random password a total of 10 letters and numbers???
This password will be used for account activation.

[Mark]

<?php 
function random_char($string) 
{ 
$length = strlen($string); 
$position = mt_rand(0, $length - 1); 
return($string[$position]); 
} 
function random_string ($charset_string, $length) 
{ 
$return_string = random_char($charset_string); 
for ($x = 1; $x < $length; $x++) 
$return_string .= random_char($charset_string); 
return($return_string); 
}  

mt_srand((double)microtime() * 1000000); 
$charset = "abc0defghijk9lnopqrstuDwmxyz134567ABCEvF2GHIJKLMN8OPQRSTWXYZ"; 
$pass = random_string($charset, 10);
print("$pass"); 
?>  

[vig0]

Originally posted by Mark

<?php 
function random_char($string) 
{ 
$length = strlen($string); 
$position = mt_rand(0, $length - 1); 
return($string[$position]); 
} 
function random_string ($charset_string, $length) 
{ 
$return_string = random_char($charset_string); 
for ($x = 1; $x < $length; $x++) 
$return_string .= random_char($charset_string); 
return($return_string); 
}  

mt_srand((double)microtime() * 1000000); 
$charset = "abc0defghijk9lnopqrstuDwmxyz134567ABCEvF2GHIJKLMN8OPQRSTWXYZ"; 
$pass = random_string($charset, 10);
print("$pass"); 
?>  

[/B]

In some instances you don't want to use characters that could be mistaken for others such as the lower case L(l) and the number one (1). I would use these instead:

$charset = '23456789' . 'abcdefghijkmnpqrstuvwxyz' .
                  'ABCDEFGHJKLMNPQRSTUVWXYZ';

[Mark]

good idea ^_