Notice: Undefined index: factnum in C:\Apache24\htdocs\test\ventas\calcret.php on line 108

Notice: Undefined index: codclien in C:\Apache24\htdocs\test\ventas\calcret.php on line 109

Notice: Undefined index: valor in C:\Apache24\htdocs\test\ventas\calcret.php on line 110

Notice: Undefined index: acobrar in C:\Apache24\htdocs\test\ventas\calcret.php on line 111

Notice: Undefined index: saldo in C:\Apache24\htdocs\test\ventas\calcret.php on line 112

Fatal error: Uncaught PDOException: SQLSTATE[42000]: [Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Incorrect syntax near '='. in C:\Apache24\htdocs\test\ventas\calcret.php:121 Stack trace: #0 C:\Apache24\htdocs\test\ventas\calcret.php(121): PDOStatement->execute() #1 {main} thrown in C:\Apache24\htdocs\test\ventas\calcret.php on line 121