PHP 8.0 fix

Author: Slamdunk

lib/r.php

@@ -21,7 +21,7 @@ function rq(string $query, array $params, bool $exit = true, int $level = 0, boo
         foreach ($params as $key => $value) {
             $query = \str_replace(
                 \sprintf(':%s', $key),
-                \sprintf('"%s"', \str_replace('"', '\\"', $value)),
+                \sprintf('"%s"', \str_replace('"', '\\"', (string) $value)),
                 $query
             );
         }