Adds paid membership period in days.

Connections/database_functions.php

@@ -29,6 +29,8 @@ define("MEMBERSHIP_HOURS",8);
 // Needs to volunteer at least this number of days before being considered a member
 define("MEMBERSHIP_DAYS",2);
 
+// Define how long a patron remains a member if they purchase a membership.
+define("PURCHASED_MEMBERSHIP_DAYS",365);
 
 /*******
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