really useful with big files (250 mb).

really useful with big files (250 mb).

Yikes, 250MB? I didn't even know it could do that :)

Is it one 250MB file zipped, or that the resulting archive was 250MB?

a 250 MB CSV File the result ended up in 12.5 Mb, however now i´m trying to zip a 490MB MB CSV and i´m running out of memory (512MB), any thoughts?

I think it's a limit in the PHP server. I'll have a look at a possible solution.

Is the CSV generated or from a file?

Have you tried using ini_set with Memory limit?
ini_set("memory_limit","768M");

I have no idea if it'll work tough.

Nope I keep exhausting the memory, i believe that the hole file it´s being loaded into memory so it can later perform the compression, is there a way to store in a temp file pieces of the compressed file and once it all it´s compressed put it together into a file (zip).

I'm working on a better solution that'll allow very large files...I hope.

I have "something". But there are some bugs to iron out. I did (accidentally) manage to stuff well over 2GB into a zip file, and it didn't flinch, however there seem to be some undocumented aspects regarding the gzwrite and zlib implementation in php that are giving me the fits.
Above a certain size, it start ...falling apart, as if it's not meant to go above 2MB files or something like that. It certainly changes it's behaviour at around that mark.

I'll keep looking.

thanks man, meanwhile i´ll keep looking.

Try the Zip_2 I just uploaded. The code is a mess and need a severe clean up, however it should allow you to create larger files.

I'll be adding the option to add a file directly, but till then you have to use something like this:

$zip->openStream("filename in zip");

$fh = fopen("filename", "rb");
$filestat = fstat($fh);
$length = $filestat['size'];
$pos = 0;
$readStep = 16384;
while (($pos+$readStep) < $length) {
$zip->addStreamData(fread($fh , $readStep));
$pos += $readStep;
}
if ($pos < $length) {
$zip->addStreamData(read($this->zipFile, $length-$pos));
}

$zip->closeStream();