With the introduction of PHP v5.3.10, we have provided you with the ability to upload your own .user.ini file. This will allow you to specify php settings you wish to change for your website only. This is the same concept of having a custom php.ini in the root folder of your webstite.
Simply create a text file named .user.ini in the wwwroot folder of your website. The file can include php settings such as:
upload_max_filesize = 200M
date.timezone = “Europe/London”
These settings will only affect your website. While most of these settings are safe to change, the .user.ini file does give you a lot of control over how php works for your site, so use your best judgement as to what you change.
Note: There is a five minute server cache for .user.ini changes, so you may not see your changes until a few minutes after uploading your revised file.
This feature is available to all hosted platforms (Win2003/Win2008/Win2012).