[ci skip] Fix an infinite loop in captcha helper
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
index 85bcfb5..03c1dd8 100644
--- a/system/helpers/captcha_helper.php
+++ b/system/helpers/captcha_helper.php
@@ -171,7 +171,8 @@
$byte_index = $word_index = 0;
while ($word_index < $word_length)
{
- if (($rand_index = unpack('C', $bytes[$byte_index++])) > $rand_max)
+ list(, $rand_index) = unpack('C', $bytes[$byte_index++]);
+ if ($rand_index > $rand_max)
{
// Was this the last byte we have?
// If so, try to fetch more.