Content-Encoding: gzip implies a gz header. zlib.deflate just deflates and emits... | Hacker News

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		pilif on Aug 23, 2012 \| parent \| context \| favorite \| on: The feature supported in IE6, but not Chrome Content-Encoding: gzip implies a gz header. zlib.deflate just deflates and emits headerless data. Because creating a valid header requires the length of the content to be known, there's no stream filter in PHP to create a gz header. To see Chrome decode your test image, use gzencode() or set Content-Encoding to deflate.

thomseddon on Aug 23, 2012 [–]

Right you are! Thanks alot.

http://www.thestudentcloud.co.uk/hn/test2.php

<?php

header('Content-Encoding: gzip');

header('Content-Type: image/jpeg');

$data = file_get_contents('test.jpg');

$gzdata = gzencode($data, 9);

$fout = fopen('php://output', "w");

fwrite($fout, $gzdata);

fclose($fout);

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