1. Regularly backup your data: Set up a regular backup schedule to ensure that your data is consistently backed up. This could be daily, weekly, or monthly backups depending on the importance of your data and how frequently it is updated.

2. Use incremental backups: Instead of performing a full backup every time, consider using incremental backups. This means that only the changes made since the last backup will be backed up, making the process quicker and more efficient.

3. Store backups in multiple locations: It is important to have multiple copies of your backups stored in different locations. This could include on-site backups, off-site backups, or even cloud storage. Storing backups in multiple locations ensures that your data is protected in the event of a disaster.

4. Test your backups: Regularly test your backups to ensure that they are working properly and can be successfully restored. This will help you identify any issues or errors before it is too late.

5. Automate the backup process: Consider automating the backup process using cron jobs or other scheduling tools. This will help ensure that backups are performed regularly and consistently without manual intervention.

6. Use file compression: Compress your backups to save storage space and reduce backup and restore times. This can be done using PHP functions like `gzcompress()` or by using external tools like gzip.

7. Secure your backups: Encrypt your backups to protect your data from unauthorized access. You can use PHP libraries like OpenSSL to encrypt your backup files using a password or private key.

8. Keep a backup of your backup: Additionally, it is a good practice to keep a backup of your backup. This means making a copy of your backups and storing it in a separate location. This provides an additional layer of protection in case the original backups are compromised or lost.

9. Monitor your backups: Regularly monitor your backups to ensure they are running as scheduled and that there are no errors or failures. This can be done by setting up email notifications or using monitoring tools to alert you of any issues.

10. Document your backup strategy: Document your backup strategy including the backup schedule, locations, encryption methods, and restore procedures. This will help ensure consistency and make it easier for you or someone else to restore the backups if needed.