TCPDF error

TCPDF error

by sam salt -
Number of replies: 5

 

I am using moodle 2.2 and i want to fetch some useful information of user on certificate

when i wrote this code to fetch

certificate_print_text($pdf, $x+120, $y+30, 'C', 'Helvetica', '', 14, $questionnaire->view_response($rid));

it give error
TCPDF ERROR: Some data has already been output, can't send PDF file

and certificate saved without fetching that information

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In reply to sam salt

Re: TCPDF error

by sam salt -

I had wrote my own code there for fetching data.

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In reply to sam salt

Re: TCPDF error

by Mark Nelson -
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Hi Sam,

Some information is being output to the browser window before the pdf is sent to the browser to be downloaded. I suspect you have an echo statement or the equivalent in your certificate type folder, or the view.php file.

More code would be helpful.

Regards,

Mark

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In reply to Mark Nelson

Re: TCPDF error

by Mairsile Hourihane -

Hi Mark,

I am having the same problem on a M2.5.

The certificate was working fine when I was last adding content, but today I'm getting the TDPDF Error: some data has already been output.

Have you any suggestions as to why this error should occur on a site that has had no code changes.

Moodle version 2.5.4+, Firefox & Chrome browsers on Windows and Android.

Thanks,

Mairsile Hourihane





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