I've got a script to backup a directory on a hosted webserver. The directory should be compressed about 1GB.
error_reporting(E_ALL);
ini_set('display_errors', 1);
include 'Archive/Tar.php';
$dir = realpath(dirname(__FILE__).'/../../dir_to_zip/');
$archivname = dirname(__FILE__)."/backup_".basename($dir).date('_Y-m-d_His').".tar.gz";
$archiv = new Archive_Tar($archivname, 'gz');
$archiv->createModify($dir, "");
echo 'done';
However, I call the script via Brwoser (Firefox) and CronJob of the hoster multiple archives are created:
| File | Size |
|---|---|
backup_dir_to_zip_2023-04-01_143924.tar.gz |
129MB |
backup_dir_to_zip_2023-04-01_143954.tar.gz |
130MB |
backup_dir_to_zip_2023-04-01_144024.tar.gz |
135MB |
backup_dir_to_zip_2023-04-01_144054.tar.gz |
139MB |
backup_dir_to_zip_2023-04-01_144125.tar.gz |
159MB |
backup_dir_to_zip_2023-04-01_144156.tar.gz |
140MB |
Its very suspicios that the partial archives are created every 30 seconds. It seems like any "keep-alive"/"refresh" from the browser that starts the script again and again.
I am also happy to hear about alternatives to zip a large file ( I know, very common problem). I have tried ZipArchive, but getting an ZipArchive::ER_MULTIDISK Exception while using the addFile-Method or an memory-overflow using the addFromString-method.
