Below is a list of PHP functions that we occasionally see disabled on the servers but are required for MainWP functionality.
imagepng – Required for PDF generation in our Pro Reports and Client Reports (Retired) extensions. The function is part of the PHP GD extension.
curl_exec and curl_multi_exec – Required for adding child sites to the MainWP Dashboard. These functions are part of the
tmpfile – Required for creating a temporary file on the Dashboard site. Used when installing Plugins and Themes via ZIP upload, adding a plugin or theme to Favorites extension, etc…
set_time_limit – Is used to set the maximum execution time for a script, overriding the default limit. It’s typically used to prevent long-running scripts from timing out.