Lander

Disallow: /
Allow: /category/it

INSERT INTO `table` (`id`, `count`, `f`)
SELECT * FROM (
  (SELECT `id`, 0 AS `count`, 'foo' AS `f` FROM `table2` [куча where])
  UNION
  (SELECT `id`, `count` AS `count`, 'bar' AS `f` FROM `table3` LIMIT 1)
) AS t;

INSERT INTO `table` (`id`, `count`, `f`)
(SELECT `id`, 0 AS `count`, 'foo' AS `f` FROM `table2` [куча where])
UNION
(SELECT `id`, `count` AS `count`, 'bar' AS `f` FROM `table3` LIMIT 1);

$class = 'MyClass';
$method = 'my_method';
$obj  = new $class;
$doit = $obj->$method(); // или $obj->{$array['key']}();

SELECT * FROM users_data WHERE owner='1' LIMIT 54720, 10

echo dirname('main/users/admin'); // main/users
echo dirname('main/users/admin/'); // main/users

// php 5+
echo dirname(dirname('main/users/admin')); // main
echo dirname(dirname('main/users/admin/')); // main

// php 7+
echo dirname('main/users/admin', 2); // main
echo dirname('main/users/admin/', 2); // main