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CGI Error The specified CGI application misbehaved by not returning a complete set of HTTP headers.

Posted on 2006-11-21
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Last Modified: 2013-11-18
U run this simple php script:

<?php

$a = file_get_contents("http://img.microsoft.com/windows/images/homepage/products/winFamLogo_XP.gif");
echo $a;

?>

and I get the error

CGI Error The specified CGI application misbehaved by not returning a complete set of HTTP headers.

the only way it works is to change the path to gif file to an actual path with a gif or jpg file..
but it cannot work with urls..
any one knows how to fix this ?
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Question by:MaRiOsGR
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11 Comments
 
LVL 29

Expert Comment

by:TeRReF
Comment Utility
Try this:
<?php
ob_start();
$a = file_get_contents("http://img.microsoft.com/windows/images/homepage/products/winFamLogo_XP.gif");
echo $a;
ob_end_flush();
?>
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Author Comment

by:MaRiOsGR
Comment Utility
I have to fix it to work globaly, not just change some code in one file.

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Expert Comment

by:TeRReF
Comment Utility
Then you should either use the ISAPI version of PHP or if the solution works for one file, you can change the php.ini setting output_buffering to On:
output_buffering = On
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Expert Comment

by:aescnt
Comment Utility
*shrug*
What other PHP files do it?
Putting an appropriate content type header (header("Content-type: image/gif")) might help.
(And no, there's no "global" way to automate this.. sorry :))

Btw, I'm don't quite understand why ob_start/ob_end_flush will fix it. I know it will buffer the output and flush it anyway, which is the same as not doing it at all. (I don't think doing "echo $a" will flush in the middle of echo'ing $a, so I don't think there's a need for output buffering.)
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Author Comment

by:MaRiOsGR
Comment Utility
the header header("Content-type: image/gif" is needed only when
I change this ("http://img.microsoft.com/windows/images/homepage/products/winFamLogo_XP.gif");
to a local file like("mypic.gif");

The problem was shown after an upgrade in the php version...

I test the script in a linux server and it works fine, the problem happens only in the windows box...

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LVL 6

Expert Comment

by:aescnt
Comment Utility
Hmm, file_get_contents() might be producing an error that you're not seeing. try making a php file with `<?php $a = file_get_contents("http://www.google.com"); echo $a; ?>` and see what the output is.

This is just a hunch, but the fopen wrappers might not be enabled on your windows installation of PHP, and thus produces an error. Not sure why it would give that CGI error though.
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Author Comment

by:MaRiOsGR
Comment Utility
aescnt that gives me tha same output...

CGI Error The specified CGI application misbehaved by not returning a complete set of HTTP headers.


I try to use at the vhost options to use ISAPI for php works.
then reaload the page and I get this error:

The connection was reset

The connection to the server was reset while the page was loading.

I turned off the firewall just in case but nothing changed..
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Author Comment

by:MaRiOsGR
Comment Utility
A possible sollution found,

it is a bug of php 4.4.2 and it doenst allow the includ of http://
we will update to 4.4.4 version tonight.

I will reply with the result.
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Author Comment

by:MaRiOsGR
Comment Utility
The update fixed everything it was a bug of php 4.4.2
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