织梦数据库文件替换

<?php
// 数据库备份
function backupDatabase() {
    $dbhost = 'localhost';
    $dbuser = 'username';
    $dbpass = 'password';
    $dbname = 'demedb';

    $backup_file = 'backup_' . date('YmdHis') . '.sql';
    $command = "mysqldump -h {$dbhost} -u {$dbuser} -p{$dbpass} {$dbname} > {$backup_file}";
    exec($command);

    if (file_exists($backup_file)) {
        echo "数据库备份成功，备份文件为：{$backup_file}";
    } else {
        echo "数据库备份失败";
    }
}

// 数据库恢复
function restoreDatabase($backup_file) {
    $dbhost = 'localhost';
    $dbuser = 'username';
    $dbpass = 'password';
    $dbname = 'demedb';

    $command = "mysql -h {$dbhost} -u {$dbuser} -p{$dbpass} {$dbname} < {$backup_file}";
    exec($command);

    if (file_exists($backup_file)) {
        echo "数据库恢复成功，备份文件为：{$backup_file}";
    } else {
        echo "数据库恢复失败";
    }
}

// 示例调用
backupDatabase();
restoreDatabase('backup_20230401123456.sql');
?>