Shared, reseller and SEO hosting are shared environments and have certain limits on what you can change, in order to maintain the stability of the server. Dedicated server and VPS customers may change all the settings in the php.ini file and do not have the same limits as shared, reseller or SEO Hosting.
Shared, Reseller and SEO Hosting
PHP has been configured to use the following settings on our shared and reseller servers:
safe mode = Off(cannot adjust)
memory_limit = 256M(MAXIMUM)
max_execution_time = 30(MAXIMUM in seconds)
max_input_time = 60(MAXIMUM in seconds)
post_max_size = 64M(MAXIMUM)
upload_max_filesize = 64M(MAXIMUM)
enable_dl = Off(cannot adjust)
The above settings either CANNOT be changed or cannot be exceeded on a shared and reseller account. These limits are set to prevent extremely high resource usage in shared environments. We have found that a majority of the PHP scripts will work within these limits, and the scripts that require more resources are best suited for a VPS or dedicated server.
Dedicated Servers and VPS
Dedicated servers and VPS can change and raise these settings to any value desired.
Dedicated Server and VPS customers with WHM access can change the limit by going to WHM > Service Configuration > PHP Configuration Editor.
Settings You Can Change
We also set the following:
register_globals = On
magic_quotes_gpc = Off
These two settings, and any other PHP settings not aforementioned, can be changed using a custom php.ini file located in the same folder as the script that requires the settings.