Compressing folder and subfolders?

[random1]

How do you zip up a folder and all of it's subdirectories (all files) in .zip of .gz format using PHP?

 

I want to be able to create a full backup of a website and offer it as saving to a server, a different server or as a download.

 

Help is much appreciated

[BlueSkyIS]

information here. the comments are insightful:

 

http://us.php.net/manual/en/ref.zip.php

 

[random1]

I ended up with the example code, it uses the zip PHP extension:

 

<?php

// Adding files to a .zip file, no zip file exists it creates a new ZIP file

// increase script timeout value
ini_set('max_execution_time', 5000);

// create object
$zip = new ZipArchive();

// open archive 
if ($zip->open('my-archive.zip', ZIPARCHIVE::CREATE) !== TRUE) {
    die ("Could not open archive");
}

// initialize an iterator
// pass it the directory to be processed
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator("themes/"));

// iterate over the directory
// add each file found to the archive
foreach ($iterator as $key=>$value) {
$zip->addFile(realpath($key), $key) or die ("ERROR: Could not add file: $key");
}

// close and save archive
$zip->close();
echo "Archive created successfully.";
?>

 

I'll tweak this a bit and it should be okay.