How to remove tabs, line breaks, unneeded spaces, etc?

[alexroderick01]

I am trying to save a little bandwidth by removing line breaks, tabs, unneeded spaces, etc. that you would see in a browser's view source. Is there a way of doing this when I'm using a php free template class?

Example:
Google.com. If you view their source, the code is cropped.

Info:
I have read some information regarding php's ob_start but I am not sure if that would apply to me as the examples I've seen echo's the buffer, whereas the template class is derived from phpbb and it has it's own $template method to make the output.

Example of method I use:
$tpl->set_filenames(array(
'body' => 'index.tpl')
);
$tpl->loadfile('body');
$tpl->pparse('body');

My HTML code is in index.tpl, and the PHP code is in index.php. The $tpl call's the template class and builds the page on pparse.
Additional Details

9 months ago
Jan: php.net does not have a forum, and I am hoping someone here might know!

Cva: That is bad advice! The way it is suppose to be done is proccessing the output, while leaving the original code untouched, as it should.

[mephisto]

Don't know how php free template works, but if you can capture the output, then you would be able to pass it through tidy and then run a regular expression to remove the new lines in the code.

PHP Code:

<?php
$output = // code to get output

$tidy = new tidy();
$output = $tidy->repairString($output, array (
    "add-xml-decl"      => true,
    "indent"            => true,
    "vertical-space"    => false,
    "indent-spaces"     => 0,
    "output-xhtml"      => true,
    "output-encoding"   => "utf8",
    "tidy-mark"         => false,
    "DocType"           => "-//W3C//DTD XHTML 1.1//EN",
    "merge-divs"        => false,
    "wrap"              => 0,
    "accessibility-check"   => 3,
    "output-bom"        => false
));

$output = preg_replace("/\r?\n/m", "", $output);

// display the output
echo $output;
exit;w
?>