How could i have all out putted code and that gzipped?

You can use this...

PHP Code:

<?php 
ob_start("ob_gzhandler"); 

<!-- your content --> 

?>

Call the function ob_start("ob_gzhandler"); at the top of your script as suggested by Moxxnixx

Also remember to call the function ob_flush(); at end

PHP Code:

<?php 
ob_start("ob_gzhandler"); 
?>

<!-- your content --> 

<?php
ob_flush();
?>

and that is it?

So all i would have to do is have ob_start("ob_gzhandler") and ob_flush() at the begining and end of my pages and the output will be compressed (if the browser accepts gzip compression)

Correct?

Normally, that's it...assuming your host has it enabled in PHP.

ok, i just saw something on vb admin whats mod_gzip and mod_deflate?

As an Acid test, check out the results of your page on
http://www.gidnetwork.com/tools/gzip-test.php
and see the gzip improvement

i just found this which is suposed to be a better way to do it.

PHP Code:

<?
// -------------------------------------------------------------------------------------
$EnableGZipEncoding = true;
// -------------------------------------------------------------------------------------
// Helper function to detect if GZip is supported by client!
// If not supported the tricks are pointless
function acceptsGZip(){
    $accept = str_replace(" ","",
        strtolower($_SERVER['HTTP_ACCEPT_ENCODING'])
    );
    $accept = explode(",",$accept);
    return in_array("gzip",$accept);
}
// -------------------------------------------------------------------------------------
function playWithHtml($OutputHtml){
    // This will mess up HTML code like my site has done!
    // View the source to understand! All ENTERs are removed.
    // If your site has PREformated code this will break it!
    // Use regexp to find it and save it and place it back ...
    // or just uncomment the next line to keep enters
    // return $OutputHtml;
    return preg_replace("/\s+/"," ",$OutputHtml);
}
// -------------------------------------------------------------------------------------
function obOutputHandler($OutputHtml){
    global $EnableGZipEncoding;
    //-- Play with HTML before output
    $OutputHtml = playWithHtml($OutputHtml);
    //-- If GZIP not supported compression is pointless.
    // If headers were sent we can not signal GZIP encoding as
    // we will mess it all up so better drop it here!
    // If you disable GZip encoding to use plain output buffering we stop here too!
    if(!acceptsGZip() || headers_sent() || !$EnableGZipEncoding) return $OutputHtml;
    //-- We signal GZIP compression and dump encoded data
    header("Content-Encoding: gzip");
    return gzencode($OutputHtml);
}
// This code has te be before any output from your site!
// If output exists uncompressed HTML will be delivered!
ob_start("obOutputHandler");
// -------------------------------------------------------------------------------------
?>

basically im looking to add this so my CMS so i can have a option to use gzip compression or not. like all gd cms and forums...

Dan

Dan, I don't see that as being better. It just provides an unnecessary step to check if gzip is enabled.
If any host is smart, they would have it enabled to save bandwidth for them and their customers.
But, that's your choice. I don't see it hurting anything.

Ok also all the stuff i seen just says to put the first part and dont say to put ob_flush() at the end is it necessary?

And what would be the best way to control this throw database? simple if?

I have a much better way of enabling it and best of all it works throughout your site from one location.

Add the following into your .htaccess file:

<IfModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_static_suffix .gz
AddEncoding gzip .gz
# Save temporary work files [Yes, No]
mod_gzip_keep_workfiles No
mod_gzip_maximum_file_size 500000
mod_gzip_maximum_inmem_size 60000
mod_gzip_handle_methods GET POST
###############
### filters ###
###############
mod_gzip_item_exclude reqheader "User-agent: Mozilla/4.0[678]"
# HTML, CGI scripts, PHP
mod_gzip_item_include file \.html$
mod_gzip_item_include file \.php$
mod_gzip_item_include file \.pl$
mod_gzip_item_include mime ^text/html$
mod_gzip_item_include mime ^text/plain$
mod_gzip_item_include mime ^httpd/unix-directory$

# DO NOT DO JavaScript & CSS (due to Netscape4 bugs)
mod_gzip_item_exclude file \.js$
mod_gzip_item_exclude file \.css$
mod_gzip_item_exclude mime ^image/

mod_gzip_dechunk Yes
mod_gzip_add_header_count Yes
mod_gzip_send_vary On
</IfModule>

But then what is

gzcompress()

and

gzdecompress()

??