What is the purpose of the backup script in the PHP code provided?

The purpose of the backup script in the PHP code provided is to create a backup file of a specified file or directory. This can be useful for creating a copy of important files in case they are accidentally deleted or modified. The backup script uses the `zip` function in PHP to compress the specified file or directory into a zip archive. 

<?php
// Specify the file or directory to backup
$source = 'path/to/file_or_directory';

// Specify the name of the backup file
$backupFile = 'backup_' . date('Y-m-d') . '.zip';

// Create a zip archive of the specified file or directory
$zip = new ZipArchive();
if ($zip->open($backupFile, ZipArchive::CREATE) === TRUE) {
    if (is_dir($source)) {
        $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);
        foreach ($files as $file) {
            $file = realpath($file);
            if (is_dir($file)) {
                $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
            } else if (is_file($file)) {
                $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
            }
        }
    } else if (is_file($source)) {
        $zip->addFromString(basename($source), file_get_contents($source));
    }
    $zip->close();
    echo 'Backup created successfully!';
} else {
    echo 'Failed to create backup!';
}
?>

Keywords

backup script PHP code purpose data protection file storage

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