PHP code example of ardabeyazoglu / php-retention

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

ardabeyazoglu / php-retention example snippets

// define retention policy (UTC timezone)
$retention = new PhpRetention\Retention([
    "keep-daily" => 7,
    "keep-weekly" => 4,
    "keep-monthly" => 6,
    "keep-yearly" => 2
]);

// customize finder logic if ) {});

// apply retention in given directory (this WILL PRUNE the files!)
$result = $retention->apply("/path/to/files");
print_r($result);

// get list of files from ftp
$rets->setFindHandler(function (string $targetDir) use ($ftpConnection) {
    $files = [];
    $fileList = ftp_mlsd($ftpConnection, $targetDir) ?: [];
    foreach ($fileList as $file) {
        $filename = $file['name'];
        $time = (int) $file['modify'];

        if (preg_match('/^backup_\w+\.zip$/', $filename)) {
            $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
            $date = $date->setTimestamp($time);

            $filepath = "$targetDir/$filename";

            $files[] = new FileInfo(
                date: $date,
                path: $filepath,
                isDirectory: false
            );
        }
    }

    return $files;
});

// assume the files waiting for retention have this format: "[email protected]"
$ret->setTimeHandler(function (string $filepath, bool $isDirectory) {
    if (preg_match('/^backup@([0-9]{4})([0-9]{2})([0-9]{2})\.zip$/', basename($filepath), $matches)) {
        $year = intval($matches[1]);
        $month = intval($matches[2]);
        $day = intval($matches[3]);

        $date = new DateTimeImmutable('now', new DateTimeZone('UTC'));
        $date = $date->setDate($year, $month, $day)->setTime(0, 0, 0, 0);

        return new FileInfo(
            date: $date,
            path: $filepath,
            isDirectory: $isDirectory
        );
    }
    else {
        return null;
    }
});

$ret->setPruneHandler(function (FileInfo $fileInfo) use ($ftpConnection) {
    ftp_delete($ftpConnection, $fileInfo->path);
});

// group different types of backups based on tenant and date and prune them together
$ret->setGroupHandler(function (string $filepath) { 
    if (preg_match('/\-([0-9]{8})\.tar\.gz$/', $filepath, $matches)) {
        // group by date str
        return $matches[1];
    }

    return null;
});