Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in C:\FdU\macoi\www.macoi.ci.uc.pt\pdfCreate\macoi_exportData.php on line 52

Warning: Cannot modify header information - headers already sent by (output started at C:\FdU\macoi\www.macoi.ci.uc.pt\pdfCreate\macoi_exportData.php:52) in C:\FdU\macoi\www.macoi.ci.uc.pt\pdfCreate\fpdf.php on line 1039
FPDF error: Some data has already been output to browser, can't send PDF file