inline print install methods, add php7-mbstring

install-db.php

@@ -13,9 +13,9 @@ foreach ($lines as $line) {
 
     if (!$res) {
       print_notice("Query: $line");
-      print_error("Error: " . implode(", ", $this->pdo->errorInfo()));
+      print("Error: " . implode(", ", $this->pdo->errorInfo()));
     }
   }
 }
 
-print_notice("Database initialization completed.");
+print("Database initialization completed.");