ID: 12022
Updated by: rasmus
Reported By: [EMAIL PROTECTED]
Old Status: Open
Status: Closed
Bug Type: Output Control
Operating System: linux
PHP Version: 4.0.2
New Comment:

What exactly is the issue here?  Why are you trying to open up stdout?  You can write 
gzip data directly without doing that.  For example:

<?
        Header("Content-type: application/x-gzip");
        echo gzencode("Hello World");
?>

This works just fine.  The headers are uncompressed, the content is compressed.  I 
don't see a bug here.  stdout only makes sense when running from the command line.  
Which also works just fine, by the way:

<?
        Header("Content-type: application/x-gzip");
        $fp = gzopen("php://stdout", "w");
        gzputs ($fp, "Hello World");
?>

which when run from the command line produces:

X-Powered-By: PHP/4.0.7-dev
Content-type: application/x-gzip

H/IVJ

Again, uncompressed headers, compressed data.

Previous Comments:
------------------------------------------------------------------------

[2001-09-08 20:16:23] [EMAIL PROTECTED]

You may want to wait on closing that bug...

>   ID: 12022
>   Updated by: sterling
>   Old Status: Open
>   Status: Closed
>   Bug Type: Output Control
>   Operating System: linux
>   New Comment:
>
>   use the header() function, btw, Perl is not php,
>   gzopen("php://stdout", "w") is not the same as the Perl example.

With respect to Sterling's suggestion that I 
use header(), that was of course the _first_ thing
that I tried, but it did not work with (my PHP/4.0.2
running on Linux).  I'm not sure what point he is
trying to make about perl not being php.  I'm not
a perl fanatic trying to demonstrate the limitations
of php, I simply can't do what I want to do with php.

if you read the original bug report carefully, you
will see that the problem resides in not being able to
emit uncompressed headers before the compressed output,
at least when using php://stdout.  i have no problem when
i use the readfile() technique: the headers are uncompressed
and the content of the file can be g-zip.

andy

   
>Previous Comments:
>------------------------------------------------------------------------
>
>[2001-07-10 14:23:04] [EMAIL PROTECTED]
>
>With perl cgi I can create a GZIP output stream
>to a Java applet as follows:
>
>print("Content-type: application/x-gzip\n\n");
>my $gz=gzopen(\*STDOUT, "wb") || die("gasp!");   
>
>however, the same technique seems to be impossible
>with php://stdout.  i realize that i can open
>a gzip'd stream as follows (note: i am using php 4.02):
>
>gzopen("php://stdout","w");
>
>however, there seems to be no way to get header fields
>(uncompressed) to precede the gzip'd output.  this 
>presents an unresolvable problem on the browser side,
>because some browsers will assume that no data has been
>sent if no header fields are received.
>
>can the php://stdout mechanism be changed to allow me
>to print uncompressed lines to stdout before the compressed
>output begins?  am i missing something here?  i realize
>that i can put zipped data into a file and use readfile()
>to send it, and this actually does send all the header
>fields as would be expected. however, this will cause
>me unnecessary drive activity because i will have to modify
>the files, which i had not wanted to do.
>
>------------------------------------------------------------------------
>
>


------------------------------------------------------------------------

[2001-09-06 23:21:57] [EMAIL PROTECTED]

use the header() function, btw, Perl is not php,
gzopen("php://stdout", "w") is not the same as the Perl example.

------------------------------------------------------------------------

[2001-07-10 14:23:04] [EMAIL PROTECTED]

With perl cgi I can create a GZIP output stream
to a Java applet as follows:

print("Content-type: application/x-gzip\n\n");
my $gz=gzopen(\*STDOUT, "wb") || die("gasp!");   

however, the same technique seems to be impossible
with php://stdout.  i realize that i can open
a gzip'd stream as follows (note: i am using php 4.02):

gzopen("php://stdout","w");

however, there seems to be no way to get header fields
(uncompressed) to precede the gzip'd output.  this 
presents an unresolvable problem on the browser side,
because some browsers will assume that no data has been
sent if no header fields are received.

can the php://stdout mechanism be changed to allow me
to print uncompressed lines to stdout before the compressed
output begins?  am i missing something here?  i realize
that i can put zipped data into a file and use readfile()
to send it, and this actually does send all the header
fields as would be expected. however, this will cause
me unnecessary drive activity because i will have to modify
the files, which i had not wanted to do.

------------------------------------------------------------------------



Edit this bug report at http://bugs.php.net/?id=12022&edit=1


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