array(3) { [0]=> string(5) "42000" [1]=> int(1064) [2]=> string(226) "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IN (p1.id, p2.id, p3' at line 9" }
string(540) "ERROR: QUERY: SELECT DISTINCT p1.id AS id_category, p1.title FROM category p1 LEFT JOIN category p2 ON p2.id_parent = p1.id LEFT JOIN category p3 ON p3.id_parent = p2.id LEFT JOIN category p4 ON p4.id_parent = p3.id WHERE IN (p1.id, p2.id, p3.id, p4.id) AND p1.id != 0"