11 Apr 2025

In online form development, connecting PHP code with MySQL database is a common operation. User form data needs to be collected and added to the database. This article introduces two commonly used PHP and MySQL database connection methods. PHP and MySQL database connection To connect MySQL database to PHP, you need to install MySQL, database management tools and PHP on your computer. The two most commonly used connection methods are MySQLi and PDO. First, we introduce the easier MySQLi to use. First create a MySQL database, here we use TablePlus. TablePlus is a convenient database management tool that handles a variety of databases in a single interface. Through its user-friendly interface,

01 Apr 2025

Laravel database connection error: The driver is not found. When using the Laravel framework for development, you often encounter database connection errors, prompting "can...

22 May 2025

The specific steps for creating a database using the CREATE command in MySQL are as follows: 1. Basic command: CREATEDATABASEmy_database; 2. Specify the character set and collation: CREATEDATABASEmy_databaseCHARACTERSETutf8mb4COLLATEutf8mb4_unicode_ci; 3. Create only when ensuring that the database does not exist: CREATEDATABASEIFNOTEXISTSmy_databaseCHARACTERSETutf8mb4COLLATEutf8mb4_unicode_ci. Select the appropriate character set and

21 Jul 2025

The most common way to connect to MySQL databases is to use PHP's mysqli or PDO extension. 1. Use mysqli: Create connection functions through object-oriented mode, set the host, username, password and database name, terminate the script when the connection fails and output error information; pay attention to enabling mysqli extension, avoid directly exposing errors, and manage configuration information independently. 2. Use PDO: Create PDO instances and set connection parameters and error handling modes to catch exceptions to handle connection errors; their advantages include supporting preprocessing statements, better error handling and object-oriented development. Common problems include username or password errors, database service not started, host address errors, or firewall restrict access to ports; it is recommended to encapsulate the connection function as a separate one

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

29 Oct 2024

Connecting to MySQL from .NET Using SSH.NET LibraryUnderstanding the ObjectiveThe goal is to establish a connection between a web page (.NET/C#)...