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Merge branch 'ticket/bantu/9612' into develop-olympus

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* ticket/bantu/9612:
  [ticket/9612] Introduce new function gen_rand_string_friendly().
This commit is contained in:
Josh Woody
2010-08-19 09:11:36 -05:00
parent 46d2d97a37 c2b29c317f
commit 25c579c00d
3 changed files with 22 additions and 5 deletions
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17
phpBB/includes/functions.php
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@@ -195,10 +195,27 @@ function set_config_count($config_name, $increment, $is_dynamic = false)
/**
* Generates an alphanumeric random string of given length
*
* @return string
*/
function gen_rand_string($num_chars = 8)
{
// [a, z] + [0, 9] = 36
return strtoupper(base_convert(unique_id(), 16, 36));
}
/**
* Generates a user-friendly alphanumeric random string of given length
* We remove 0 and O so users cannot confuse those in passwords etc.
*
* @return string
*/
function gen_rand_string_friendly($num_chars = 8)
{
$rand_str = unique_id();
// Remove Z and Y from the base_convert(), replace 0 with Z and O with Y
// [a, z] + [0, 9] - {z, y} = [a, z] + [0, 9] - {0, o} = 34
$rand_str = str_replace(array('0', 'O'), array('Z', 'Y'), strtoupper(base_convert($rand_str, 16, 34)));
return substr($rand_str, 0, $num_chars);