After migrating to a cheaper hosting plan, the site administrator complained that audio files could not be uploaded.
Checking phpinfo(), the upload limit was 4MB, and the php.ini file in the root directory no longer had any effect.
Searching on Google led me to this article.
The fcgi-bin folder is in the public_html folder. So far there is no effect, but the article said it may take up to an hour, so we’ll see.
Edit: Ran the kill command suggested in the article. There was one ‘No such process’ error while the others were ‘Operation not permitted’. Refreshing the PHP info page showed that the maximum upload size had been updated.