<?php header("content-type:text/html;charset=utf-8"); class DBUtils{ /** *通用更新方法 insert update delete 操作 *@param sql *@return bool true false */ public function update($sql){ $link = $this->getConn(); mysql_query($sql); //如果出错显示 if(DEBUG){ echo mysql_error(); } $rs = mysql_affected_rows($link); $rs = $rs > 0; mysql_close($link); return $rs; }
MySQL is a relational database developed by the Swedish MySQL AB company and currently belongs to Oracle. MySQL is the most popular relational database management system. In terms of WEB applications, MySQL is one of the best RDBMS (Relational Database Management System) application software. MySQL is a relational database management system that stores data in different tables instead of putting all the data in one big warehouse, which increases speed and flexibility. The SQL language used by MySQL is the most commonly used standardized language for accessing databases. MySQL software adopts a dual authorization policy (this entry "Authorization Policy"), which is divided into community version and commercial version. Due to its small size, fast speed and low total cost of ownership, especially the characteristics of open source, it is generally used by small and medium-sized users. For website development, MySQL is chosen as the website database. Due to the excellent performance of its community version, it can form a good development environment with PHP, Linux and Apache. After years of web technology development, it has become one of the widely used web server solutions in the industry, called LAMP.
All resources on this site are contributed by netizens or reprinted by major download sites. Please check the integrity of the software yourself! All resources on this site are for learning reference only. Please do not use them for commercial purposes. Otherwise, you will be responsible for all consequences! If there is any infringement, please contact us to delete it. Contact information: admin@php.cn
Related Article
17 Apr 2019
This article mainly introduces the implementation method of PHP's deletion, modification and query operation of XML files. It analyzes PHP's loading of XML files and the reading, modification and query of XML nodes and other related operation skills in the form of specific examples. Friends in need can For reference.
12 Jul 2016
PHP MySql add, delete, modify, check, phpmysql add, delete, modify. PHP MySql addition, deletion and modification query, phpmysql addition, deletion and modification mysql_connect() connects to the database mysql_select_db selects the database mysql_fetch_assoc() obtains the result set mysql_query() executes the sql statement. Examples are as follows:
08 Oct 2017
There are many ways to query data in the database, which are divided into single-table and multi-table related queries.
08 May 2023
MySQL is a very commonly used relational database management system. It provides rich functions and flexible operation methods to meet the data management needs of various enterprises and individuals. Among them, addition, deletion, query and modification are the basic operations of MySQL. Let's introduce these operations in detail below. 1. Connect to MySQL Before performing MySQL operations, we need to connect to the MySQL server first. There are many ways to connect, such as using command line tools or GUI tools (such as Navicat or HeidiSQL); among them, we use the command line here
25 Jul 2016
MySQL add, delete, modify, query tool PHP class
06 May 2023
PHP Add, Delete, Modify and Check Applications in MVC Mode With the continuous development of Web applications, more and more developers choose to use PHP language as their development language. Therefore, it is essential to understand how to use PHP to perform basic add, delete, modify, and query operations. In this article, I will explore how to use PHP to perform add, delete, modify and query operations in MVC (model-view-controller) mode. What is the MVC pattern? In the MVC pattern, the application is divided into three parts: Model, View
Hot Tools
PHP library for dependency injection containers
PHP library for dependency injection containers
A collection of 50 excellent classic PHP algorithms
Classic PHP algorithm, learn excellent ideas and expand your thinking
Small PHP library for optimizing images
Small PHP library for optimizing images