Gzip file size

[Cardale]

I am trying to figure out how to get the size of a file after it has been compressed using the output buffer I am using the ob get length and it only returns the original file size for some reason.

[Cardale]

I know its a hard one.

[premiso]

I am sure it has to do with the output buffer not compressing till after the data is sent to the browser. Here is a test script I created which shows the difference, which seemed to work:

 

<?php
function output() {
echo "<div style=display:none>";
for ($i=0;$i<100;$i++) {
	echo str_repeat("One jumped over the coocoo nest!<br />", 100);
}
echo "</div>";
}

ob_start();
output();
$output = gzcompress(ob_get_contents());
ob_end_clean();

ob_start();
output();
$output2 = ob_get_contents();
ob_end_clean();

echo "Length is after compression: " . strlen($output) . "<Br />";
echo "Length is before compression: " . strlen($output2) . "<Br />";
?>

 

Seems to work, how are you setting up the compression? In .htaccess or using

ob_start('ob_gzhandler');

? If so that is why, because the output does not get compressed until the script ends essentially (or at least that is all I could come up with).

[Cardale]

I actually live where that movie was filmed. 

[Cardale]

Oh and btw I got it worked out a little different, but seems correct.

[Cardale]

Oh and with strlen that returns the bits bytes or what?

[Cardale]

never mind mb_strlen works good.  For some reason I couldn't divide with strlen.