Warning: Undefined array key "emp_id" in D:\xampp\htdocs\m_m\purchase\po_del.php on line 10

Warning: Undefined array key "emp_name" in D:\xampp\htdocs\m_m\purchase\po_del.php on line 11

Warning: Undefined array key "po_id" in D:\xampp\htdocs\m_m\purchase\po_del.php on line 16

Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 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 '' at line 1 in D:\xampp\htdocs\m_m\include\db_conn\db.class_mm.php:97 Stack trace: #0 D:\xampp\htdocs\m_m\include\db_conn\db.class_mm.php(97): PDO->exec('Update po_mast ...') #1 D:\xampp\htdocs\m_m\purchase\po_del.php(21): db_mm->execute('Update po_mast ...') #2 {main} thrown in D:\xampp\htdocs\m_m\include\db_conn\db.class_mm.php on line 97