I have already put the following in my php.ini file :
log_errors = On
track_errors = Off
html_errors = On
error_log = C:\Windows\temp\php_errors.log
But the php_errors.log file is never created. Even if I create an empty file, it is never filled. I am running on Windows with IIS.
By the way, today the problem is somehow different : instead of a “HTTP ERROR 500” message, I just get an empty page in any request on my site. If I look at the source code of the empty page, it just contains <html><body></body></html>.