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-rw-r--r--system/codeigniter/Common.php2
-rw-r--r--user_guide/changelog.html1
2 files changed, 2 insertions, 1 deletions
diff --git a/system/codeigniter/Common.php b/system/codeigniter/Common.php
index eb9dce648..73ff0196f 100644
--- a/system/codeigniter/Common.php
+++ b/system/codeigniter/Common.php
@@ -62,7 +62,7 @@ function is_really_writable($file)
// write a file then read it. Bah...
if (is_dir($file))
{
- $file = rtrim($file, '/').'/'.md5(rand(1,100));
+ $file = rtrim($file, '/').'/'.md5(mt_rand(1,100).mt_rand(1,100));
if (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
{
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 6ec6cd32f..a6eaef166 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -76,6 +76,7 @@ SVN Revision: </p>
<h3>Bug fixes for 1.7.3</h3>
<ul>
+ <li>Increased randomness with<kbd>is_really_writable()</kbd> to avoid file collisions when hundreds or thousands of requests occur at once.</li>
<li>Fixed or clarified assorted user guide typos or examples.</li>
</ul>