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Database operation class

PHP implements MySQL database backup and restore class

Database operation class

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PHP implements MySQL database backup and restore class

A very simple class file that uses php to back up mysql database. We only need to simply configure the connection address username and database in dbmange.

1. Database backup (export)

2. Database recovery (import)

are the host, user name, password, database name, and database encoding

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MySQL Database Backup Validation and Restore Testing

18 Jul 2025

The key to database backup is whether it can be restored. Many people mistakenly think that regular backups are safe. In fact, verification of backup effectiveness and testing the recovery process are the core of ensuring data security. 1. The reasons for verifying MySQL backup include: the backup may fail due to interruptions, inconsistent methods, storage corruption and other problems. Only through restore tests can its reliability be confirmed. 2. Common backup types and verification methods: 1. Logical backup (such as mysqldump) can be verified by checking file content, importing test library, and querying key data; 2. Physical backup (such as XtraBackup) requires checking directory structure, preprocessing and starting instance verification; 3. Binary logs need to be checked for continuity and restored through simulated error deletion tests. 3. Effective recovery test steps include

How to backup and restore database after mysql installation

08 Apr 2025

There is no absolutely optimal MySQL database backup and recovery solution, and it needs to be selected based on the amount of data, business importance, RTO and RPO. 1. Logical backup (mysqldump) is simple and easy to use, suitable for small databases, but slow and huge files; 2. Physical backup (xtrabackup) is fast, suitable for large databases, but is more complicated to use. The backup strategy needs to consider the backup frequency (RPO decision), backup method (data quantity and time requirement decision) and storage location (off-site storage is more secure), and regularly test the backup and recovery process to avoid backup file corruption, permission problems, insufficient storage space, network interruption and untested issues, and ensure data security.

Working with Databases in WordPress

15 Feb 2025

WordPress database interaction guide: mastering wpdb class and database operation skills WordPress comes with a large number of database interaction functions. WP_Query class and wp_insert_post, update_post_meta, get_posts and other functions are usually enough to deal with most situations. However, especially when dealing with custom tables, we sometimes need to do things that cannot be achieved by WordPress native features. This tutorial will explore the most important class in WordPress database interaction - wpdb, and share some development tips. We will introduce the dbDelta function used to create custom tables, but will not cover creating initial Word