Suggestion: Test for PDO support

[sandymac]

FYI: I just tested the current dev branch and the settings failed until I figured out my PHP install didn't have PDO support compiled in.

[Arcanemagus]

Although this should really check in the Welcome Screen as well, this is already checked before it attempts to connect to the DB here.

[sandymac]

The Welcome Screen loads fine, screenshot below, is after I submit the settings to ..../plexwatchweb/includes/process_settings.php I get the error "Fatal error: Class 'PDO' not found in /var/www/localhost/htdocs/plexwatchweb/includes/ConfigClass.php on line 401" from here, screenshot also below.

If I have an existing config.php then I currently get an empty response or the Plex Watch header and no other content.

[Arcanemagus]

Yep, that fits perfectly with how it's checking currently.