1. PHP: mysql_query - Manual

    php.net/manual/en/function.mysql-query.php

    mysql_query() sends a unique query (multiple queries are not supported) to the currently active database on the server that's associated with the specified link ...

  2. PHP: get_object_vars - Manual

    php.net/manual/en/function.get-object-vars.php

    get_object_vars (PHP 4, PHP 5, PHP 7) get_object_vars — Gets the properties of the given object