Delete files older than a certain date.

delete-expired-files-recursive.php

<?php

/**
 * Delete files older than a given age recursively.
 *
 * @link https://www.php.net/manual/en/class.recursivedirectoryiterator.php#111142 Source
 * 
 * @param  string  $dir      Path to directory having the files
 * @param  int     $age      In seconds
 * @param  string  $pattern  File name pattern
 *
 * @throws UnexpectedValueException
 * 
 * @return array             Deleted files
 */
function deleteExpiredFiles($dir, $age, $pattern = null)
{
    $rdi = new \RecursiveDirectoryIterator($dir);

    // $rii = new \RecursiveIteratorIterator($rdi);

    $rii = new \RecursiveIteratorIterator($rdi, \RecursiveIteratorIterator::CHILD_FIRST);

    $deleted = [];

    $limit = time() - $age;

    foreach ($rii as $splFileInfo) {
        $fileName = $splFileInfo->getFilename();

        // Skip hidden files and directories.
        if ($fileName[0] === '.') {
            continue;
        }

        if($pattern && !preg_match($pattern, $fileName)) {
            continue;
        }
        
        if ($splFileInfo->getMTime() > $limit) {
            continue;
        }

        $path = $splFileInfo->isDir() 
            ? array($fileName => []) 
            : array($fileName);

        for ($depth = $rii->getDepth() - 1; $depth >= 0; $depth--) {
            $path = array($rii->getSubIterator($depth)->current()->getFilename() => $path);
        }

        $deleted = array_merge_recursive($deleted, $path);

        if($splFileInfo->isDir()) {
            // rmdir($splFileInfo->getRealPath());
            continue;
        }

        unlink($splFileInfo->getRealPath());
    }

    return $deleted;
}

// $dir = storage_path('backups');

$dir = "C:\\xampp\\htdocs\\integrations\\storage\\backups";

$age = 3600*24*7;

$pattern = "/^(.*?)(.json)$/";

$deleted = deleteExpiredFiles($dir, $age, $pattern);

echo json_encode($deleted);