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 'a=0''a=0'a=0'a=0'a=0'a=0'a=0''a=0'a=0'a=0'a=0'a=0'a=0'a=0'a=0'''a=0',search_date' at line 1