Home Backend Development PHP Tutorial PHP connects to mysql database and writes data_PHP tutorial

PHP connects to mysql database and writes data_PHP tutorial

Jul 13, 2016 pm 05:05 PM
mysql php No and use write data database friend of Know program connect

Friends who use PHP programs know that PHP and MySQL are a very good pair. We often use it for WEB development. Now I will introduce the simplest PHP method to connect to the MySQL database and write data. Friends in need can refer to.

Principle steps

1. PHP uses mysql_connect to connect to the mysql database

2. Open the MySQL database

3. Accept page data and enter it into the specified table with PHP

4. Then use mysql_query to execute and save the sql into the database.


Connecting to mysql database is super simple as follows

The code is as follows
 代码如下 复制代码
mysql_connect("localhost","root","");//连接MySQL
mysql_select_db("hello");//选择数据库
?>
Copy code

mysql_connect("localhost","root","");//Connect MySQL

mysql_select_db("hello");//Select database
代码如下 复制代码

require_once("conn.php");//引用数据库链接文件

$uname = $_GET['n'];//GET方法为URL参数传递
$psw = $_GET['p'];
$psw=md5($psw);//直接使用MD5加密

$sql = "insert into members(username,password) values ('$uname','$psw')";
mysql_query($sql);//借SQL语句插入数据

mysql_close();//关闭MySQL连接
echo "成功录入数据";
?>

?>

 代码如下 复制代码

$uname = $_GET['n'];//GET方法为URL参数传递
$psw=md5($_GET['p']);//直接使用MD5加密
$conn=mysql_connect("localhost","root","");//连接MySQL
$sql = "insert into members set username='uname',password='$psw'";
mysql_db_query("hello",$sql,$conn);//借SQL语句插入数据
?>

Example 1

The code is as follows
Copy code
require_once("conn.php");//Reference database link file $uname = $_GET['n'];//GET method passes URL parameters $psw = $_GET['p']; $psw=md5($psw);//Use MD5 encryption directly $sql = "insert into members(username,password) values ​​('$uname','$psw')"; mysql_query($sql);//Insert data using SQL statements mysql_close();//Close the MySQL connection

echo "Data entered successfully"; ?>
Combined with simpler
The code is as follows Copy code
$uname = $_GET['n'];//GET method passes URL parameters <🎜> $psw=md5($_GET['p']);//Use MD5 encryption directly<🎜> $conn=mysql_connect("localhost","root","");//Connect to MySQL<🎜> $sql = "insert into members set username='uname',password='$psw'";<🎜> mysql_db_query("hello",$sql,$conn);//Insert data using SQL statements<🎜> ?> http://www.bkjia.com/PHPjc/630728.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/630728.htmlTechArticleFriends who use php programs all know that php and mysql are a very good pair. We often use it for WEB Development, let me introduce the simplest PHP method to connect to mysql database and write data, if necessary...
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP's Purpose: Building Dynamic Websites PHP's Purpose: Building Dynamic Websites Apr 15, 2025 am 12:18 AM

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

Why Use PHP? Advantages and Benefits Explained Why Use PHP? Advantages and Benefits Explained Apr 16, 2025 am 12:16 AM

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP: Handling Databases and Server-Side Logic PHP: Handling Databases and Server-Side Logic Apr 15, 2025 am 12:15 AM

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Choosing Between PHP and Python: A Guide Choosing Between PHP and Python: A Guide Apr 18, 2025 am 12:24 AM

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

How to start mysql by docker How to start mysql by docker Apr 15, 2025 pm 12:09 PM

The process of starting MySQL in Docker consists of the following steps: Pull the MySQL image to create and start the container, set the root user password, and map the port verification connection Create the database and the user grants all permissions to the database

MySQL's Role: Databases in Web Applications MySQL's Role: Databases in Web Applications Apr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

See all articles