Description:
------------
See the script below, if the $data is too big, then the script will be failed, but if the regular expression from:
<pre>
!<script>([\s\S]*?)</script>!i
</pre>

changed to 

</pre>
!<script>([\s\S]*)</script>!i
<pre>

Then, it works.


Test script:
---------------
<?php
$data = 'blabla <script>' . str_repeat("a", 1024 * 100) . '</script>';
$data = preg_replace_callback('!<script>([\s\S]*?)</script>!i', function($matches) {
    return $matches[1];
}, $data);
echo strlen($data);
?>

Expected result:
----------------
102407

Actual result:
--------------
0