Comments on: 4 Fantastic PHP Output Buffering Tricks for Web Developers

By: Stalingrad

Stalingrad — Wed, 04 Aug 2010 15:39:50 +0000

function remove_space_and_compress($buffer)
{
$buffer=trim(preg_replace(‘/\s+/’, ‘ ‘, $buffer));

if (stristr($_SERVER['HTTP_ACCEPT_ENCODING'], ‘gzip’) !== FALSE)
{
$buffer=gzencode($buffer);
header(‘Content-Encoding: gzip’);
}
else if (stristr($_SERVER['HTTP_ACCEPT_ENCODING'], ‘deflate’) !== FALSE)
{
$buffer=gzdeflate($buffer);
header(‘Content-Encoding: deflate’);
}

return $buffer;
}

ob_start(‘remove_space_and_compress’);

/* After looking at your function i decided to optimize it */

By: Kris

Kris — Fri, 30 Jul 2010 09:27:16 +0000

balls, it all got encoded
the … becomes ‘ampersand hash 8230;’
then it gets encoded again to
‘ampersand amp; hash 8230′

By: Kris

Kris — Fri, 30 Jul 2010 09:25:31 +0000

if you look at this code
// add ellipses $buffer = str_replace('...', '…', $buffer); // encode ampersands $buffer = str_replace('&', ' & ', $buffer);

let’s say we had the following content in our buffer
this is great... and it's fast & fun

won’t this get messed up. specifically the str_replace will change the … into … and then process it again to make …

haven’t actually tried this, it was just my first thought when looking at it.

By: Adrenalin

Adrenalin — Wed, 03 Feb 2010 17:53:53 +0000

One of my late favorites is ob_implicit_flush() which works pretty much exactly opposite to your suggestions. Flushing the output buffer constantly is very nice especially when running batches that take long to finish, since it’s possible to see the results on the fly.

By: 45 Must Read PHP Articles and Resources

45 Must Read PHP Articles and Resources — Fri, 08 Jan 2010 17:45:07 +0000

[...] 4 Fantastic PHP Output Buffering Tricks for Web Developers [...]

By: Resources for PHP Webmail « David Woodfield

Resources for PHP Webmail « David Woodfield — Tue, 24 Nov 2009 17:19:01 +0000

[...] http://dev-tips.com/featured/4-fantastic-php-output-buffering-tricks-for-web-developers [...]

By: Craig

Craig — Wed, 14 Oct 2009 06:50:15 +0000

So what about if you want all of that in one script. How do you combine everything?

By: JeffM

JeffM — Thu, 03 Sep 2009 16:46:59 +0000

Hi Mark

That’s an interesting question. What’s encoding them before they’re sent to the output buffer? How about a usage example?

By: mark

mark — Tue, 01 Sep 2009 22:07:54 +0000

hi. how would i do the reverse of this. i.e. convert only encoded ampersands that are in hrefs to a straight &? backwards i know but i need to do this and my brain hurts. thanks!

By: JeffM

JeffM — Fri, 28 Aug 2009 10:34:51 +0000

@Patrik:
Place the ob_start() right at the top of your WordPress theme’s functions.php file. This file is loaded before any ouput is generated (other than headers, natch).

// file = theme\functions.php // Start output buffering


ob_start('ob_postprocess'); 
function ob_postprocess($buffer)  
	// do your thang here
	// finally send it to the browser

	return $buffer;

}
// remainder of functions.php...

The ob_end_flush() call could be added at the end of your theme’s footer.php, but is not strictly required since the callback function will be called regardless. My experience anyways, since PHP5+.