[php-src] Issue #8218: ob_end_clean does not reset Content-Encoding header

Issue: https://github.com/php/php-src/issues/8218 Comment Author: DanielnetoDotCom > I'm no PMA dev. We fixed it locally for our clients. Then I reported the bug report :-) > > The export function is broken. Browser says it cannot understand the "download > content" as its plain text but the header is set to gzip. So > the browser expects gzip-encoded content. > > edit: For reference this is our PMA fix we rolled out: > > ```diff > --- a/libraries/classes/Controllers/ExportController.php 2022-03-18 14:35:05.436069330 > +0100 > +++ b/libraries/classes/Controllers/ExportController.php 2022-03-18 14:34:33.419300421 > +0100 > @@ -305,6 +305,7 @@ > $hasBuffer = false; > } > } while ($hasBuffer); > + header_remove("Content-Encoding"); > } > > $tables = []; > ``` > > I'll create a PMA bug report if the new behavior is intended. That is what I did as a work around ``` function doesPHPVersioHasOBBug(){ if (version_compare(phpversion(), "8.1.4", "==")) { return true; } else if (version_compare(phpversion(), "8.0.17", "==")) { return true; } else { return false; } } function _ob_end_clean(){ ob_end_clean(); if(!doesPHPVersioHasOBBug()){ header_remove("Content-Encoding"); } } ```