Fatal error: Uncaught mysqli_sql_exception: 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 '-12' at line 6 in /home/storage/e/6f/87/encontrelivros1/public_html/livros.php:50 Stack trace: #0 /home/storage/e/6f/87/encontrelivros1/public_html/livros.php(50): mysqli->prepare('SELECT a.id_liv...') #1 {main} thrown in /home/storage/e/6f/87/encontrelivros1/public_html/livros.php on line 50