search
Homephp教程php手册PHP入门学习的几个不错的实例代码

PHP入门学习的几个不错的实例代码

Jun 13, 2016 pm 12:28 PM
localhostphpNocodegetting StartedseveralstudyExampledatabaseofconnect

1,php连接数据库


$dbhost = 'localhost'; 
$dbuser = 'root'; //你的mysql用户名 
$dbpass = '123456'; //你的mysql密码 
$dbname = 'data'; //你的mysql库名 

//连接本地数据库
$GLOBALS["conn"] = mysql_connect($dbhost,$dbuser,$dbpass); 

//打开数据库
mysql_select_db($dbname,$GLOBALS["conn"]);

?>

2.php读取数据库中,某一字段值


//读取一列数据
$sql="select * from ec_admin";
$result = mysql_query($sql,$GLOBALS["conn"]);

printf("用户名: %s
\n", mysql_result($result,3,"UserName"));
printf("密码: %s
\n", mysql_result($result,3,"UserPass"));

?>

3,php插入某一条数据


$sql="insert into ec_admin(UserName,UserPass) values('liugongxun2','jakemary2')";
$result=mysql_query($sql,$GLOBALS["conn"])or die(mysql_error());

?>

4,php while循环 


$sql="select * from ec_admin";
$result = mysql_query($sql,$GLOBALS["conn"]);
while($myrow = mysql_fetch_row($result))
{
 printf("用户名%s %s密码
",$myrow[1],$myrow[2]); 
}

?>

5,php do while循环


$sql="select * from ec_admin";
$result = mysql_query($sql,$GLOBALS["conn"]);
if($myrow = mysql_fetch_array($result))
{
 do
 {
 printf("用户名%s %s密码
",$myrow["UserName"],$myrow["UserPass"]); 
 }while($myrow = mysql_fetch_array($result));
}
?>

6,php判断表单是否提交


if ($submit)

{}

?>

Statement
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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools