Update database operations and form capabilities

Database operations have been redefined and additional functionality has been added for handling database queries. Functions for updating rows by ID and inserting array into table have been updated for better reliability. In addition, new form attributes for managing decimal steps have been added to enhance data input capabilities. Refactoring and security improvements have also been addressed in the PDO class.

core/i/mysql.php

@@ -15,6 +15,7 @@ interface IMysql
 	const PLACE_NO_QUERY            = "NO QUERY";
 	const NO_ID                     = false;
 	const PLACE_TABLE_NAME          = "NO TABLENAME";
+	const PLACE_ARRAY_NAME          = "NO ARRAY";
     const PLACE_QUERY_LIMIT	        = "NO LIMIT";
     const PLACE_SORT_ORDER	        = "NO ORDER";
 	const PLACE_DSN                 = "NO CONNECTION STRING";