Issue: https://github.com/php/php-src/issues/7953
Comment Author: timint
I just want to point out ob_clean() doesn't need to be _right after_. Any use of ob_clean()
long after ob_start('gzhandler') should cause the same problem.
```
<?php
ob_start('ob_gzhandler');
...
echo 'Say something regretful';
ob_clean();
echo 'Hello World';
```
Result:
```
��� �H���W��/�I�V��J�
```