Your server meets all of XenForo's PHP requirements.
However, the following warnings should be noted - you may need to ask your host to address these:
Your server has disabled a core PHP function exec via the disable_functions directive in php.ini. This may cause unexpected problems in XenForo.
Your server has disabled a core PHP function escapeshellarg via the disable_functions directive in php.ini. This may cause unexpected problems in XenForo.
Your server has disabled a core PHP function proc_open via the disable_functions directive in php.ini. This may cause unexpected problems in XenForo.
Your server has disabled a core PHP function popen via the disable_functions directive in php.ini. This may cause unexpected problems in XenForo.