Gunzip for TOO LARGE files.
<?
// http://stackoverflow.com/questions/1229571/unpack-large-files-with-gzip-in-php
function gunzip($srcName, $dstName) {
$sfp = gzopen($srcName, "rb");
$fp = fopen($dstName, "w");
while ($string = gzread($sfp, 4096)) {
fwrite($fp, $string, strlen($string));
}
gzclose($sfp);
fclose($fp);
}