我有一个FPDF输出，可在本地完美运行，但在线存在问题。
错误是：
Fatal error: Uncaught exception 'Exception' with message 'FPDF error: Some data has already been output, can't send PDF file (output started at /home/wa/public_html/razpis/baza.inc.php:1)' in /home/wa/public_html/razpis/fpdf.php:271
Stack trace:
#0 /home/wa/public_html/razpis/fpdf.php(1052): FPDF->Error('Some data has a...')
#1 /home/wa/public_html/razpis/fpdf.php(1012): FPDF->_checkoutput()
#2 /home/wa/public_html/razpis/naredipdf.php(169): FPDF->Output('razpis.pdf', 'D')
#3 /home/wa/public_html/razpis/razpis5.php(136): require('/home/wa...')
#4 /home/wa/public_html/razpis/index.php(165): include_once('/home/wa...')
#5 {main} thrown in /home/wa/public_html/razpis/fpdf.php on line 271