How to I measure the byte-size of text blobs?

Vigilante

This is kind of a HTTP encoding question but how do I measure the byte size of blobs of text? The obvious means would be strlen() but I'm not sure how many bytes of transferable bandwidth each character constitutes in hypertext.

A related question is how much does gzip compression affect this? If possible, I would like my script to automatically take page compression into account but since not all browsers support it (I think) that might not be possible.

Vigilante

I'm not sure whether this is frowned-upon or not but since I'm pretty sure the answers to these questions would be a useful resource I'll risk bumping this topic to get the attention of someone with expertise in http.

zapa

Computer files are measured in units called "bytes" (pronounced "bites"). A byte roughly translates into a character or letter. For example, if I type "Love & War", I have typed in 10 bytes (7 letters, 1 symbol, 2 spaces).

mroe info at...
http://www.learnthat.com/courses/computer/windows/filesize1.shtml

so if you had to find size in bytes you count the string and that would be the bytes and convert that to KB if needed

example....

"zapa" = 4 bytes file size

/r are counted as 1 byte, do some exparaments in NOTEpad... type in X number charaters and look at how the file size is effected

zapa

Something like this would work.


<?php 

function fsize($fileup) {
//Setup some common file size measurements.
	$kb=1024;
	$mb=1048576;
	$gb=1073741824;
	$tb=1099511627776;
//Get the file size in bytes.
	$size = strlen($fileup);
//Format file size
	if($size < $kb) {
	return $size." B";
	}
	else if($size < $mb) {
	return round($size/$kb,2)." KB";
	}
	else if($size < $gb) {
	return round($size/$mb,2)." MB";
	}
	else if($size < $tb) {
	return round($size/$gb,2)." GB";
	}
	else {
	return round($size/$tb,2)." TB";
	}
	}

$fileaa = "size of text to find place here;
print " blobs of text is " . fsize($fileaa);
?>

zapa

_SuperString

Im looking for the best solution to counting the bytes in a string.....

I know this is an old topic, but for people running searchs - the answer given above it wrong. Try it and you'll see. It may be almost accurate for very small basic text, but try something bigger that 10K which has a mixture of characters/symbols and you'll see there can be a difference.

I'll continue my search for the ideal solution.. so far the only solution I have it to write the string to a temp file and use filesize(). But for me this is not very pretty... there has got to be a better way.