Flush not flushing!

[B0b]

Hey guys,

 

Apparently flush won't flush on my new server.

This will hold the buffer up to the end:

 

for ( $i = 0; $i <= 10; $i++)
{
    echo 'Foo ' . $i . ' Bar' . '<br/>';
    flush();
    wait( 1 );
}

 

Any clue of what's going on?

 

Thanks so much!

[genericnumber1]

You might check your PHP.ini for the

output_buffering

setting. Make sure that is disabled. Also make sure you're not using any other output buffers (ob_start(), etc)

 

Edit:

Also, did you define wait() elsewhere or did you mean sleep?

[B0b]

Thank you very much for the reply.

In phpinfo, output_buffering is set to 4096.

Does that mean it output only after 4096 bytes are cached? If so, how should that be changed in a local php.ini file, if it's possible?

 

Edit: I meant sleep 

[genericnumber1]

You should try setting...

output_buffering = Off

and using sleep (so you can see the delay). That should hopefully do it.

 

Edit: For setting the directive just for the one file, you would have to do it in .htaccess. The ini_set function can not modify output_buffering.

[B0b]

Hum... yes, I'd like to have it in a .htaccess file, but having in:

 

output_buffering = Off

 

Gives me a 500 Internal Server Error: "Invalid command 'output_buffering'"... hum?..

[roopurt18]

<?php
ini_set( 'output_buffering', false );
?>

[B0b]

Seems like that's too simple to fix the problem  :-\

Still no flushing...

[PFMaBiSmAd]

Have you read the information in the flush() section of the php documentation?

 

You must also disable all of the buffering (including the buffering being done to accomplish compression) that the web server is doing.

 

Short-answer: web servers and browsers were never intended for output from a single http request to be sent this way.

[B0b]

I got it to work with one of the posts in PHP documentation:

 

@apache_setenv('no-gzip', 1);
@ini_set('zlib.output_compression', 0);
@ini_set('implicit_flush', 1);
for ($i = 0; $i < ob_get_level(); $i++) { ob_end_flush(); }
ob_implicit_flush(1);

 

All that to be able to flush 

 

Thanks guys.