blank report

Hi php experts
since yesterday the report shows blank pages
i have a program that i wrote in php,it was working perfect,since yesterday when i want to pront a report by van and two dates first is slow and after that it shows a blank screen with no data.
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You've really given no information at all that would help us to help you. Are you able to post the code for the problematic page?
asaidiAuthor Commented:
i think the probelm is not with the code ,because it was working fine for more than 3 months,and i can print the report with no problem and the calculation was fine.
but now when i want to print a report i have no result and the page is blank..
i am wondering if it is the server problem(do i need to restart it) or the database problem do i need to index it ,
please find attached code
asaidiAuthor Commented:
Hi ridown
the problem it was that when the data is very big it cannot be shown in the browser,and it was mysql problem and i found a solution from old solution in exchange that the tables must be indexed

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