I did some more testing with the code I posted yesterday and found it isn’t 100% compatible with some unzip programs. Works with unix unzip, Mac OS X default tool, WinZip, WinRAR but annoyingly not with the default XP zip folder thing.
The problem seem to be 4 rogue bytes that gets inserted somewhere. So back to Google, eventually I found a much better library at PHP Concept Library Zip. It works more or less the same, except you must pass it files to add instead of just data in variables, either works for me.
Some sample code:
require ("incl/pclzip.lib.php");
$zipfile = new PclZip('zipfile.zip');
$v_list = $zipfile->create('incl/pclzip.lib.php');
if ($v_list == 0) {
die ("Error: " . $zipfile->errorInfo(true));
}
header("Content-type: application/octet-stream");
header("Content-disposition: attachment; filename=zipfile.zip");
readfile("zipfile.zip");
This one works with every unzip tool I’ve tried, Windows, OS X, command line unzip etc. It also has decent error reporting etc.
