[php-src] Issue #12838: [SOAP] Temporary WSDL cache files not being deleted

Issue: https://github.com/php/php-src/issues/12838 Author: Lyrkan ### Description Hi there, After upgrading some servers from PHP 8.1.25 to 8.1.26 I started receiving alerts that their disk usage was increasing unusually fast due to thousands of tmp.wsdl.* files being created in the WSDL cache folder. From what I've seen those temporary files were added in #12469 but I think it may be related to another issue I had before. PHP scripts from my app are owned by an user called admin and may be executed by two different users : * admin (CLI) * www-data (PHP-FPM). In both cases SOAP APIs may be called which will result in the WSDL cache being populated. From my understanding, the filenames for those files depend on a [php_get_current_user()](https://github.com/php/php-src/blob/f3ece813ff9b4f114267e213120de63d2c392ce0/ext/soap/php_sdl.c#L3231) call which doesn't return the process owner but the owner of the script, which means that in both cases (CLI or PHP-FPM) the files will have the same name. Since - at least in my case - they are created in the /tmp directory with 600 permissions, only the owner of the process that was used to create them can also read them. So, I basically end-up with files called wsdl-admin-* owned by the first user that populated the WSDL cache (ex: admin) and not readable by the other one (ex: www-data). I'm not sure why it worked before 8.1.26, I'm guessing that it probably didn't but failed silently. What I'm guessing happens next is that the new code from #12469 tries to move the tmp.wsdl.* files to wsdl-admin-<hash> but does not have the persmission to do so. So, two questions: * is there a reason the cache files are named based on the script file owner and not the PHP process owner? * shouldn't the tmp.wsdl.* files be removed if they could not be renamed? ### PHP Version PHP 8.1.26 ### Operating System Ubuntu 20.04