Is it advisable to also send the file size of the compressed output to the browser?

It can be advisable to send the file size of the compressed output to the browser for informational purposes. This can help users understand the size reduction achieved through compression and make them aware of the bandwidth savings. However, this information should not be critical for the functionality of the application. 

// Get the size of the compressed output
$compressedSize = strlen($compressedData);

// Send the file size of the compressed output to the browser
header('Content-Length: ' . $compressedSize);

Keywords

file size compressed output browser PHP compression.

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