PHP zip does not work - php

Question

I made a drupal module, one of function of the module is to compress some files to be a zip package. It works fine in my local environment(xampp), but fails on server. My server does has php zip extension enabled, since I can see zip information on php info and I can unzip file with php as well.
Besides, I already chmod files to be 0777 .
My code:
$folder = file_directory_path();
$zip = new ZipArchive();
if ($zip->open('b.zip', ZIPARCHIVE::CREATE) === TRUE) {
foreach ( $files as $file ) {
drupal_set_message(t($file)); // I can see the the message on this stpe
$zip->addFile($file);
}
$zip->close();
if (file_exists('b.zip')) {
copy('b.zip', $folder . '/b.zip');
unlink('b.zip');
global $base_url;
variable_set('zippath', $base_url . $folder . '/b.zip');
drupal_set_message(t('new zip package has been created'));
}
} else {
drupal_set_message(t('new zip package failed'));
}

Answer 1

Yes .. i know what you mean .. this are the 3 possibility
You have write permissions
You Did not use full path
You are including folders as file
You can try this
error_reporting(E_ALL);
ini_set("display_errors", "On");
$fullPath = __DIR__ ; // <-------- Full Path to directory
$fileZip = __DIR__ . "/b.zip"; // <--- Full path to zip
if(!is_writable($fullPath))
{
trigger_error("You can't Write here");
}
$files = scandir($fullPath); // <--- Just to emulate your files
touch($fileZip); // <----------------- Try Creating the file temopary
$zip = new ZipArchive();
if ($zip->open($fileZip, ZIPARCHIVE::CREATE) === TRUE) {
foreach ( $files as $file ) {
if ($file == "." || $file == "..")
continue;
$fileFull = $fullPath . "/$file";
if (is_file($fileFull)) { // <-------------- Make Sure its a file
$zip->addFile($fileFull, $file);
}
// Play your ball
}
$zip->close();
} else {
echo "Failed";
}

Answer 2

I would recommend you to use rar or zip command to make zip. I am using linux and doing in my php system as
$folder = 'your_folder'; // folder contains files to be archived
$zipFileName = 'Your_file_name'; // zip file name
$command = 'rar a -r ' . $zipFileName . ' ' . $folder . '/';
exec($command);
Its very quick. but you need to install rar package in your system.
Thanks