What filename does my PHP initialization file need to use?

The file name your PHP initialization must use depends on the type of hosting account you have.

Hosting account typeFilenameLocation
Linux Hosting with cPanel.user.ini/public_html (one per account)
Windows Hosting with Plesk.user.iniWebsite root (one per website)
Managed WordPress.user.ini/html (one per website)

 Note: Managed WordPress accounts also support using php.ini files, but because it’s difficult to refresh them when they’re updated, we recommend using .user.ini files instead.