Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '$A1' at line 1 in /home/users/d/dtg/domains/teplo-garant.com/function.php:313 Stack trace: #0 /home/users/d/dtg/domains/teplo-garant.com/function.php(313): mysqli->prepare('$A1') #1 /home/users/d/dtg/domains/teplo-garant.com/page/pages_user/product.php(88): get_all_1('$A1', NULL, NULL) #2 /home/users/d/dtg/domains/teplo-garant.com/routing.php(49): include('/home/users/d/d...') #3 /home/users/d/dtg/domains/teplo-garant.com/index.php(15): include('/home/users/d/d...') #4 {main} thrown in /home/users/d/dtg/domains/teplo-garant.com/function.php on line 313