$size = filesize($PHP_SELF);

[davidpbrown]

Forgive a stupid question but I'm struggling to create Content-length: so it can be used in a HTTP/1.0 persistent connection which appears to be important in caching what is effectively a static page.

I have
$size = filesize($PHP_SELF);
header("Content-length: $size");
which is obviously incorrect.

I've seen something to the effect it needs an absolute filename rather than a URI but can't find how this is done, which surprised me as I would have expected this is used quite often.

[dmorison]

What you have is wrong because content-length must refer to the length of the output of your script, not the length of the source code. Start here...

[uk.php.net...]

You need to:

1/ Turn output buffering ON at the top of your script with ob_start()

2/ ... rest of script ...

3/ use header("Content-length: ".ob_get_length()) at the end of your script.

[davidpbrown]

Excellent hadn't even begun to go there.

Thanks for the quick response
:)